Toro 5900 - Manual

Groundsmaster 5900/5910 Page 1 -- 1 Safety Chapter 1 Safety Table of Contents GENERAL SAFETY INSTRUCTIONS 2 . . . . . . . . . . . . Before Operating 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . While Operating 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance and S...

Groundsmaster 5900/5910 Page 1 -- 2 Safety General Safety Instructions The Groundsmaster 5900 and 5910 are tested and cer-tified by Toro for compliance with existing safety stan-dards and specifications. Although hazard control andaccident prevention partially are dependent upon thedesign and config...

Groundsmaster 5900/5910 Page 1 -- 3 Safety While Operating 1. Sit on the seat when starting and operating the ma-chine. 2. Before starting the engine: A. Engage the parking brake. B. Make sure the traction pedal is in the neutral posi-tion and the PTO switch is OFF (disengaged). C. After engine is s...

Groundsmaster 5900/5910 Page 1 -- 4 Safety Maintenance and Service 1. Before servicing or making machine adjustments,lower cutting decks, stop engine, apply parking brakeand remove key from the ignition switch. 2. Make sure machine is in safe operating condition bykeeping all nuts, bolts and screws ...

Groundsmaster 5900/5910 Page 1 -- 5 Safety Jacking Instructions CAUTION When changing attachments, tires or perform-ing other service that requires the machine to beraised, use correct jacks, hoists and supports toraise and support the machine. Make sure ma-chine is parked on a solid level surface s...

Groundsmaster 5900/5910 Page 1 -- 6 Safety Safety and Instruction Decals Numerous safety and instruction decals are affixed toyour Groundsmaster. If any decal becomes illegible ordamaged, install a new decal. Decal part numbers arelisted in your Parts Catalog.

Groundsmaster 5900/5910 Page 2 -- 1 Product Records and Maintenance Chapter 2 Product Records and Maintenance Table of Contents PRODUCT RECORDS 1 . . . . . . . . . . . . . . . . . . . . . . . . . MAINTENANCE 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EQUIVALENTS AND CONVERSIONS ...

0.09375 Groundsmaster 5900/5910 Page 2 -- 2 Product Records and Maintenance Equivalents and Conversions

Groundsmaster 5900/5910 Page 2 -- 3 Product Records and Maintenance Torque Specifications Recommended fastener torque values are listed in thefollowing tables. For critical applications, as determinedby Toro, either the recommended torque or a torque thatis unique to the application is clearly ident...

Groundsmaster 5900/5910 Page 2 -- 6 Product Records and Maintenance Other Torque Specifications SAE Grade 8 Steel Set Screws Thread Size Recommended Torque Thread Size Square Head Hex Socket 1/4 -- 20 UNC 140 + 20 in--lb 73 + 12 in--lb 5/16 -- 18 UNC 215 + 35 in--lb 145 + 20 in--lb 3/8 -- 16 UNC 35 ...

Groundsmaster 5900/5910 Page 3 -- 1 Diesel Engine Chapter 3 Diesel Engine Table of Contents GENERAL INFORMATION 2 . . . . . . . . . . . . . . . . . . . . . Operator’s Manual 2 . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Identification 2 . . . . . . . . . . . . . . . . . . . . . . . . ...

Groundsmaster 5900/5910 Page 3 -- 2 Diesel Engine General Information This Chapter gives information about specifications ofthe Cummins B3.3 diesel engine used in the Ground-smaster 5900 and 5910. Additionally, some engine re-pair procedures are described in this manual. Describedadjustments and rep...

Groundsmaster 5900/5910 Page 3 -- 3 Diesel Engine Stopping the Engine IMPORTANT: Before stopping the engine aftermowing or full load operation, allow the engine torun at low idle speed for five (5) minutes. This will al-low the turbocharger and internal engine compo-nents to adequately cool down. Fa...

Groundsmaster 5900/5910 Page 3 -- 4 Diesel Engine Engine Specifications Item Description Make / Designation Cummins, 4--Cycle, 4 Cylinder, Liquid Cooled, Turbocharged, Diesel Engine Bore 3.74 in (95.0 mm) Stroke 4.53 in (115 mm) Total Displacement 201 in 3 (3300 cc) Firing Order 1 (Closest to Engine...

Groundsmaster 5900/5910 Page 3 -- 5 Diesel Engine Engine Fastener Torque Specifications Item Description Alternator Adjusting Cap Screw 23 ft--lb (31 N--m) Alternator Mounting Bracket Cap Screw (2 used) 23 ft--lb (31 N--m) Alternator Mounting Cap Screw 49 ft--lb (66 N--m) Crankshaft Pulley Bolt 274 ...

Groundsmaster 5900/5910 Page 3 -- 7 Diesel Engine Adjustments Valve Clearance 1. Park machine on a level surface, lower cuttingdecks, stop engine, engage parking brake and removekey from the ignition switch. 2. Raise and support hood. 3. Remove valve cover from engine (see Valve CoverRemoval in the ...

Groundsmaster 5900/5910 Page 3 -- 8 Diesel Engine Service and Repairs Air Filter System Figure 4 1. Clamp 2. Air hose 3. Flange head screw (6 used) 4. Air cleaner mount 5. Flange nut (8 used) 6. Air cleaner mounting band (2 used) 7. Air cleaner assembly 8. Adapter 9. Service indicator 10. Worm clamp...

Groundsmaster 5900/5910 Page 3 -- 9 Diesel Engine Removal (Fig. 4) 1. Park machine on a level surface, lower cuttingdecks, stop engine, engage parking brake and removekey from the ignition switch. 2. Raise and support hood to allow access to engine. 3. Remove air cleaner components as needed usingFi...

Groundsmaster 5900/5910 Page 3 -- 10 Diesel Engine Exhaust System Figure 8 1. Exhaust clamp 2. Exhaust tube 3. Muffler clamp (2 used) 4. Muffler 5. Tailpipe 6. Flange head screw (4 used) 7. Heat shield FRONT RIGHT 50 to 70 in -- lb (5.7 to 7.9 N -- m) 2 1 3 4 7 6 5 3

Groundsmaster 5900/5910 Page 3 -- 11 Diesel Engine Removal (Fig. 8) CAUTION The engine and exhaust system may be hot. Toavoid possible burns, allow the engine and ex-haust system to cool before working on the ex-haust system. 1. Park machine on a level surface, lower cuttingdecks, stop engine, engag...

Groundsmaster 5900/5910 Page 3 -- 12 Diesel Engine Turbocharger Figure 11 1. Turbocharger assembly 2. Flange nut (4 used) 3. Banjo bolt 4. Sealing washer 5. Oil supply tube 6. Exhaust manifold 7. Banjo bolt 8. Sealing washer 9. Coupling 10. O -- ring11. Exhaust manifold gasket12. Gasket 13. Flange h...

Groundsmaster 5900/5910 Page 3 -- 14 Diesel Engine Fuel Tank Figure 12 1. Fitting cover 2. Screw (3 used) 3. Fuel supply standpipe 4. Fuel return standpipe 5. Bushing (2 used) 6. Elbow fitting 7. Bushing 8. Fuel tank 9. Fuel hose (2 used) 10. Flange nut (2 used)11. Tank hold down12. Flange head scre...

Groundsmaster 5900/5910 Page 3 -- 15 Diesel Engine Fuel Tank Removal (Fig. 12) 1. Park machine on a level surface, lower cuttingdecks, stop engine, engage parking brake and removekey from the ignition switch. 2. Chock rear wheels and jack up front of machine.Support machine on jack stands. Remove fr...

Groundsmaster 5900/5910 Page 3 -- 16 Diesel Engine Radiator Figure 14 1. Radiator assembly 2. Flange nut (4 used) 3. Support plate (2 used) 4. Flange nut (4 used) 5. Rubber pad (4 used) 6. Hose clamp (3 used) 7. Upper radiator hose 8. Overflow hose 9. Hose clamp 10. Worm clamp (5 used)11. Barb fitti...

Groundsmaster 5900/5910 Page 3 -- 17 Diesel Engine CAUTION Do not open radiator cap or drain coolant if theradiator or engine is hot. Pressurized, hot cool-ant can escape and cause burns. Ethylene -- glycol antifreeze is poisonous. Dis-pose of coolant properly, or store it in a properlylabeled conta...

Groundsmaster 5900/5910 Page 3 -- 18 Diesel Engine Alternator Figure 17 1. Alternator 2. Front cover 3. Belt 4. Bevel washer (2 used) 5. Flange head screw 6. Flat washer 7. Hex nut 8. Flange head screw (2 used) 9. Alternator bracket 10. Cap screw11. Water pump12. Adjusting bracket13. Alternator brac...

Groundsmaster 5900/5910 Page 3 -- 20 Diesel Engine Starter Motor Figure 18 1. Engine 2. Starter motor 3. Flange head screw (2 used) 2 1 3 32 ft -- lb (43 N -- m) FRONT RIGHT

Groundsmaster 5900/5910 Page 3 -- 22 Diesel Engine Valve Cover Figure 20 1. Engine 2. Valve cover 3. Lock nut (3 used) 4. Flat washer (3 used) 5. Isolation washer (3 used) 6. Oil fill cap 7. Valve cover gasket 2 1 3 4 6 5 7 80 in -- lb(9 N -- m) FRONT RIGHT

Groundsmaster 5900/5910 Page 3 -- 24 Diesel Engine Engine Breather System Figure 21 1. Hose 2. Hose clamp 3. Spacer 4. Breather mount plate 5. Cap screw (2 used) 6. Breather 7. Breather outlet hose 8. Latch plate 9. Hose clamp 10. Breather inlet hose11. Hose clamp12. Hose clamp 13. Breather hose14. ...

Groundsmaster 5900/5910 Page 3 -- 26 Diesel Engine Thermostat Figure 23 1. Water pump 2. Seal 3. Thermostat 4. Gasket 5. Thermostat housing 6. Flange head screw (2 used) 14 ft -- lb(19 N -- m) 3 1 2 4 5 6 Removal (Fig. 23) 1. Park machine on a level surface, lower cuttingdecks, stop engine, engage p...

Groundsmaster 5900/5910 Page 3 -- 27 Diesel Engine 3. Slowly heat the water and stir water to allow uniformwater temperature. Note and record the temperature forthe following: A. The thermostat should start to open at 180 o F (82 o C). B. The thermostat should be fully open (0.315” (8mm) lift) at 20...

Groundsmaster 5900/5910 Page 3 -- 28 Diesel Engine Water Pump Figure 25 1. Flange head screw (4 used) 2. Water pump pulley 3. Belt 4. Flange head screw 5. Flange head screw (2 used) 6. O -- ring 7. Gasket 8. Thermostat housing 9. Flange head screw (3 used) 10. Water pump 11. Thermostat12. Front cove...

Groundsmaster 5900/5910 Page 3 -- 29 Diesel Engine Removal (Fig. 25) 1. Park machine on a level surface, lower cuttingdecks, stop engine, engage parking brake and removekey from the ignition switch. 2. Raise and support hood to allow access to engine. CAUTION Do not open radiator cap or drain coolan...

Groundsmaster 5900/5910 Page 3 -- 30 Diesel Engine Front Cover Figure 27 1. Belt 2. Front cover 3. Water pump pulley 4. Bevel washer (2 used) 5. Flange head screw 6. Flat washer 7. Hex nut 8. Flange head screw (2 used) 9. Alternator bracket 10. Water pump assembly11. Crankshaft pulley with tone whee...

Groundsmaster 5900/5910 Page 3 -- 34 Diesel Engine Oil Pan Figure 30 1. O -- ring 2. Flat washer 3. Flange head screw (2 used) 4. Flange head screw (24 used) 5. Sealing washer 6. Drain plug 7. Oil pan 8. Oil suction tube 3 8 4 1 2 5 6 7 3 24 ft -- lb (32 N -- m) 14 ft -- lb (19 N -- m) 38 ft -- lb (...

Groundsmaster 5900/5910 Page 3 -- 38 Diesel Engine CAUTION Make sure that hoist or lift used to remove enginecan properly support engine. Engine weighsapproximately 606 pounds (275 kg). 13.Connect suitable hoist or lift to the front and rear lifttabs on engine. 14.Remove lock nuts, snubbing washers ...

Groundsmaster 5900/5910 Page 3 -- 39 Diesel Engine 9. On Groundsmaster 5910 machines, install air condi-tioning compressor to brackets (see Air ConditioningCompressor Installation in the Service and Repairs sec-tion of Chapter 10 -- Operator Cab). Make sure that drivebelt is properly tensioned. 10.U...

Groundsmaster 5900/5910 Page 3 -- 40 Diesel Engine Flywheel Coupling Assembly Figure 37 1. Cap screw (12 used) 2. Washer (12 used) 3. Coupling housing 4. Cap screw (8 used) 5. Washer (8 used) 6. Flywheel coupling 7. Engine assembly FRONT RIGHT 29 to 33 ft -- lb (40 to 44 N -- m) Threadlocker Permate...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 1 Chapter 4 Hydraulic System Table of Contents SPECIFICATIONS 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GENERAL INFORMATION 3 . . . . . . . . . . . . . . . . . . . . . Traction Unit Operator’s Manual 3 . . . . . . . . . . . . . . ....

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 2 Specifications Item Description Piston (Traction) Pump Rexroth Bosch, Variable Displacement Piston Pump Maximum Pump Displacement (per revolution) 3.84 Cubic Inches (63 cc) Traction Relief Pressure Forward 4330 PSI (299 bar) Reverse 5330 PSI (368 ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 3 General Information Traction Unit Operator’s Manual The Traction Unit Operator’s Manual provides informa-tion regarding the operation, general maintenance andmaintenance intervals for your Groundsmaster ma-chine. Refer to that publication for addi...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 4 Towing Traction Unit IMPORTANT: If towing limits are exceeded, severedamage to the piston (traction) pump may occur. If it becomes necessary to tow or push the machine,move machine in a forward direction at a speed below2 mph (3.2 kph), and for a ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 5 Traction Circuit Component Failure The traction circuit on Groundsmaster 5900 and 5910machines is a closed loop system that includes the pis-ton (traction) pump and four (4) wheel motors. If a com-ponent in the traction circuit should fail, debris...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 6 Hydraulic Hoses Hydraulic hoses are subject to extreme conditions suchas pressure differentials during operation and exposureto weather, sun, chemicals, very warm storage condi-tions or mishandling during operation and maintenance.These conditions...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 7 Hydraulic Hose and Tube Installation (O -- Ring Face Seal Fitting) 1. Make sure threads and sealing surfaces of the hose/tube and the fitting are free of burrs, nicks, scratches orany foreign material. 2. As a preventative measure against leakage,...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 9 Adjustable Fitting (Fig. 9) 1. Make sure all threads and sealing surfaces of fittingand component port are free of burrs, nicks, scratchesor any foreign material. 2. As a preventative measure against leakage, it is rec-ommended that the O--ring be...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 11 Hydraulic Schematic The hydraulic schematic for Groundsmaster 5900 and5910 machines is located in Chapter 10 -- Foldout Draw-ings. Hydraulic System

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 12 Hydraulic Flow Diagrams T raction C ircuit: Low Speed (Forward Shown) W o rk in g P res s u re Low Pressure (Charge) Return or Suction Fl ow RE A R WHE E L MOT O R S FR ON T WHE E L MOT O R S RE V FOR CHG

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 13 Traction Circuit: Low Speed A variable displacement, bi--directional piston pump isdirectly coupled to the engine flywheel to provide hy-draulic flow for the traction circuit. The piston pumpswash plate movement is controlled by an electronicprop...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 15 Traction Circuit: High Speed A variable displacement, bi--directional piston pump isdirectly coupled to the engine flywheel to provide hy-draulic flow for the traction circuit. The piston pumpswash plate movement is controlled by an electronicpro...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 17 Traction Circuit: Traction Control A flow divider is incorporated into the traction circuit toprovide a proportioned flow to the front and rear wheelmotors for a true four--wheel drive system. When the Hi--Lo speed switch is in the Low position a...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 18 (Deck L ift C ontrol M anifold Solenoids S1 and S5 Energized) W o rk in g P res s u re Low Pressure (Charge) Return or Suction Fl ow RE A R W H EEL MOT O R S FR ON T W H EEL MOT O R S RE V FOR CHG Raise C utting Deck (Center D eck Switch Pressed ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 19 Raise Cutting Deck A three section gear pump is coupled to the piston (trac-tion) pump. The gear pump section (P3) farthest fromthe piston pump supplies hydraulic flow to the lift controlmanifold, the steering/cooling fan control manifold andthe ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 20 RE A R WHE E L MOT O R S FR ON T W H EEL MOT O R S RE V FOR CHG (Deck Lift C ontrol M anifold Solenoids S1, S 8 and S9 Energized) W o rk in g P res s u re Low Pressure (Charge) Return or Suction Fl ow Lower Cutting Deck (Right W ing Deck Switch P...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 21 Lower Cutting Deck A three section gear pump is coupled to the piston (trac-tion) pump. The gear pump section (P3) farthest fromthe piston pump supplies hydraulic flow to the lift controlmanifold, the steering/cooling fan control manifold andthe ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 23 PTO Mow Circuit A three section gear pump is coupled to the piston (trac-tion) pump. Hydraulic flow for the PTO mow circuit issupplied by two (2) sections of the gear pump. The gearpump section (P1) closest to the piston pump supplieshydraulic fl...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 24 PTO Mow Circuit Cutting Deck Blade Braking When the operator turns the PTO switch OFF or if a deckis raised with the PTO switch ON, PTO control manifoldsolenoid valve (S) is de--energized causing logic car-tridge (LC1) to shift (refer to informat...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 27 Steering Circuit A three section gear pump is coupled to the piston (trac-tion) pump. The gear pump section (P3) farthest fromthe piston pump supplies hydraulic flow to the steering/cooling fan control manifold, the lift control manifold andthe t...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 29 Engine Cooling Fan Circuit A three section gear pump is coupled to the piston (trac-tion) pump. The gear pump section (P3) farthest fromthe piston pump supplies hydraulic flow to the steering/cooling fan control manifold, the lift control manifol...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 30 Special Tools Order special tools from your Toro Distributor. Hydraulic Pressure Test Kit Use to take various pressure readings for diagnostictests. Quick disconnect fittings provided attach directlyto mating fittings on machine test ports withou...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 31 Hydraulic Test Fitting Kit This kit includes a variety of O--ring Face Seal fittings toenable you to connect test gauges into the system. The kit includes: tee’s, unions, reducers, plugs, capsand male test fittings. Toro Part Number: TOR4079 Figu...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 32 Rear Wheel Hub Puller The rear wheel hub puller allows safe removal of thewheel hub from the rear wheel motor shaft. Toro Part Number: TOR6100 Figure 21

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 33 Troubleshooting The charts that follow contain information to assist introubleshooting hydraulic circuit problems. There maypossibly be more than one cause for a machine mal-function. Refer to the Testing section of this Chapter for precau-tions ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 34 Traction Problems Problem Possible Causes Machine operates in one direction only. System charge check valve and/or system relief valveis defective. Pilot direction valve in 4WD control manifold isdamaged or sticking. Traction control potentiomete...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 35 PTO Problems Problem Possible Causes Cutting decks do not operate. NOTE: Decks have to be fully lowered and tractionspeed needs to be in MOW for decks to operate. An electrical problem exists (see Chapter 5 -- ElectricalSystem). Gear pump is worn...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 36 Steering Circuit Problems Problem Possible Cause Steering inoperative or sluggish. Steering components (e.g. tie rods, steering cylinder ends) areworn or binding. Steering cylinder is binding. Oil level in hydraulic reservoir is low (other hydrau...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 40 Traction Circuit Charge Pressure Test (Using Pressure Gauge) Figure 22 REV FOR CHG T O FRONT D ECK C ONTROL V A L V E T O L E FT DE CK CONTROL V A L V E T O DE CK L IFT CONTROL V A L V E TO FLUSH VALVE TO TRACTION CONTROL VALVE PORT P TO FRONT WH...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 41 Procedure for Traction Circuit Charge Pressure Test 1. Make sure hydraulic oil is at normal operating tem-perature by operating the machine for approximately 10minutes. Make sure the hydraulic tank is full. 2. Park machine on a level surface with...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 42 Traction Circuit Relief Pressure Test (Using Pressure Gauge) Figure 24 FORWARD RELIEF VALVE TEST SHOWN REV FOR CHG T O FRONT D ECK C ONTROL V A L V E T O L E FT DE CK CONTROL V A L V E T O DE CK L IFT CONTROL V A L V E TO FLUSH VALVE TO TRACTION ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 43 Procedure for Traction Circuit Relief Pressure Test 1. Make sure hydraulic oil is at normal operating tem-perature by operating the machine for approximately 10minutes. Make sure the hydraulic tank is full. Perform Traction Circuit Relief Pressur...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 45 Procedure for Rear Traction Circuit (RV) Relief Pres-sure Test 1. Make sure hydraulic oil is at normal operating tem-perature by operating the machine for approximately 10minutes. Make sure the hydraulic tank is full. 2. Park machine on a level s...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 48 Counterbalance Pressure Test (Using Pressure Gauge) Figure 30 FLOW FROM GEAR PUMP TO OIL FILTER TO OIL RESERVOIR TO GEAR PUMP SUCTION TO OIL RESERVOIR PRESSURE GAUGE

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 49 Procedure for Counterbalance Pressure Test 1. Make sure hydraulic oil is at normal operating tem-perature by operating the machine for approximately 10minutes. Make sure the hydraulic tank is full. 2. Park machine on a level surface with the cutt...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 50 Cutting Deck Circuit Pressure Test (Using Pressure Gauge) Figure 32 RELIEF VALVE TEST SHOWN REV FOR CHG T O FIL T ER MANIFOLD P O R T CD1 TO F IL T E R MA NI FO L D P O R T P T O HY DRA UL IC R ESER VOIR TO FLUSH VALVE TO TRACTION CONTROL VALVE P...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 52 Lift/Lower Circuit Relief Pressure Test (Using Pressure Gauge) Figure 36 FLOW FROM GEAR PUMP TO OIL FILTER TO OIL RESERVOIR TO GEAR PUMP SUCTION TO OIL RESERVOIR PRESSURE GAUGE The lift/lower circuit relief valve pressure test should beperformed ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 54 Steering Circuit Relief Pressure Test (Using Pressure Gauge) Figure 38 STEERING WHEEL TURNED FOR RIGHT TURN FLOW FROM GEAR PUMP TO OIL FILTER TO OIL RESERVOIR TO GEAR PUMP SUCTION TO OIL RESERVOIR PRESSURE GAUGE The steering circuit relief valve ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 55 Procedure for Steering Circuit Relief Pressure Test 1. Make sure hydraulic oil is at normal operating tem-perature by operating the machine for approximately 10minutes. Make sure the hydraulic tank is full. 2. Park machine on a level surface with...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 56 Steering Cylinder Internal Leakage Test Figure 41 FROM STEER/FAN CONTROL VALVE PORT CF TO OIL FILTER FROM STEER/FAN CONTROL VALVE PORT LS LOOK FOR PLUG (FULLY EXTENDED) LEAKAGE (FULLY RETRACTED) STEERING WHEEL TURNED FOR RIGHT TURN The steering c...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 59 Procedure for Gear Pump (P3) Flow Test 1. Make sure hydraulic oil is at normal operating tem-perature by operating the machine for approximately 10minutes. Make sure the hydraulic tank is full. 2. Park machine on a level surface with the cuttingd...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 60 Adjustments Adjustable Pressure Valve The mow/transport and lift control manifolds include ad-justable pressure valves. An adjustment may be re-quired to these valves if testing determines that thecircuit pressure setting is incorrect (see TESTIN...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 61 Service and Repairs General Precautions for Removing and Installing Hydraulic System Components Before Repair or Replacement of Components 1. Before removing any parts from the hydraulic sys-tem, park machine on a level surface, apply parkingbrak...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 62 Flush Hydraulic System IMPORTANT: Flush the hydraulic system any timethere is a severe component failure or the system iscontaminated (oil appears milky, black or containsmetal particles). 1. Park machine on a level surface. Lower cuttingdecks, s...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 64 Charge Hydraulic System NOTE: When initially starting the hydraulic system withnew or rebuilt components such as motors, pumps or liftcylinders, it is important that the hydraulic system becharged properly. Air must be purged from the systemand i...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 66 Hydraulic Reservoir 1. Bushing 2. Elbow fitting 3. Latch plate 4. Socket head screw (2 used) 5. Magnetic catch 6. Hinge bracket (2 used) 7. Push nut (2 used) 8. Socket head screw (2 used) 9. Tank cover 10. Rod11. O -- ring 12. Reservoir cap13. O ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 67 Removal (Fig. 49) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Read the General Precautions for Removing andInstalling Hydraulic System Components at the begin...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 68 Gear Pump 1. Gear pump 2. 90 o hydraulic fitting 3. Piston pump 4. Quick fitting 5. Dust cap 6. Cap screw (2 used) 7. Hydraulic adapter 8. Flat washer (2 used) 9. 90 o hydraulic fitting 10. Clamp 11. Hose (from filter)12. Cap screw (2 used)13. 90...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 69 Removal (Fig 51) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Remove hood to gain access to gear pump (seeHood Removal in the Service and Repairs section ofCha...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 70 Gear Pump Service 1. Socket head screw (8 used) 2. Seal ring 3. Deflecting plate 4. Rear cover 5. Drive gear 6. Deflecting plate 7. Load seal 8. Pre -- load seal 9. Idler gear 10. Gear housing11. Dowel pin (6 used)12. Drive coupler13. Gear housin...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 72 Traction Circuit 1. Piston (traction) pump 2. Gear pump 3. LH front wheel motor 4. Traction control manifold 5. RH front wheel motor 6. 4WD control manifold 7. Traction flush manifold 8. RH rear wheel motor 9. LH rear wheel motor Figure 53 FRONT ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 75 Removal (Fig. 54) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Remove hood to gain access to hydraulic pumps(see Hood Removal in the Service and Repairs sectio...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 78 Front Wheel Motors 1. Front wheel motor 2. Splined brake shaft 3. Internal retaining ring 4. Planetary assembly 5. Gasket 6. Front wheel assembly 7. Brake assembly (LH shown) 8. Flange head screw (6 per planetary) 9. O -- ring 10. Flange head scr...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 79 Removal (Fig. 56) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Read the General Precautions for Removing andInstalling Hydraulic System Components at the begin...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 80 Front Wheel Motor Service 1. Drive shaft 2. Backplate 3. Housing assembly 4. Rotating assembly 5. Cam plate insert 6. Retaining ring 7. Cap screw (6 used) 8. Shaft seal 9. Retaining ring 10. Thrust race11. O -- ring12. Valve plate 13. Thrust bear...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 82 Rear Wheel Motors 1. Rear tire 2. Lug nut (6 used per wheel) 3. Cap screw (4 used per motor) 4. Lock washer (4 used per motor) 5. LH wheel motor 6. Valve stem 7. Tie rod assembly 8. RH steering spindle 9. RH wheel motor 10. Hex nut11. Square key1...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 83 5. Remove rear wheel assembly from the machine (seeRear Wheel Removal in the Service and Repairs sectionof Chapter 6 -- Chassis). IMPORTANT: DO NOT hit wheel hub, wheel hubpuller or wheel motor with a hammer during removalor installation. Hammeri...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 84 Rear Wheel Motor Service 1. Cap screw (7 used) 2. Commutator assembly 3. Manifold 4. Stator assembly 5. Wear plate 6. Drive link 7. Shaft seal 8. Back -- up washer 9. End cover 10. Commutator ring11. Body seal (5 used) 12. Thrust bearing13. Coupl...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 86 Traction Control Manifold FRONT RIGHT 1. Traction control manifold 2. Flange head screw (4 used) 3. Front PTO control manifold 4. Planetary assembly 5. LH front wheel motor 6. Front wheel assembly 7. Frame assembly 8. Brake assembly Figure 61 4 6...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 88 Traction Control Manifold Service 20 ft -- lb (27 N -- m) 75 ft -- lb (101 N -- m) 5 ft -- lb (6.7 N -- m) 50 ft -- lb (67 N -- m) 6 7 12 13 10 8 2 3 1 11 9 14 15 16 4 5 3 6 7 20 ft -- lb (27 N -- m) 20 ft -- lb (27 N -- m) 20 ft -- lb (27 N -- m...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 90 4WD Control Manifold 1. 4WD control manifold 2. O -- ring 3. O -- ring 4. Hydraulic tee fitting 5. Hydraulic tee fitting 6. Flange nut 7. Bulkhead mount plate 8. Flange nut (2 used) 9. Cap screw 10. Cap screw (2 used)11. Flush manifold12. Flange ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 91 Removal (Fig. 64) 1. Read the General Precautions for Removing andInstalling Hydraulic System Components at the begin-ning of the Service and Repairs section of this chapter. 2. To prevent contamination of hydraulic system duringmanifold removal,...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 92 4WD Control Manifold Service 1. Orifice (0.040) (OR2) 2. Plug with O -- ring 3. NWD #6 plug with O -- ring 4. NWD #8 plug with O -- ring 5. Solenoid valve (SV) 6. Solenoid coil 7. Nut 8. Check valve (CV) 9. NWD #4 plug with O -- ring 10. Directio...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 94 Traction Flush Manifold 1. 4WD control manifold 2. O -- ring 3. O -- ring 4. Hydraulic tee fitting 5. Hydraulic tee fitting 6. Flange nut 7. Bulkhead mount plate 8. Flange nut (2 used) 9. Cap screw 10. Cap screw (2 used) 11. Hydraulic oil temp se...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 95 4. Support flush manifold to prevent it from falling. Re-move two (2) cap screws and flange nuts that securemanifold to frame (Fig. 67). Remove flush manifold fromthe machine. 5. If hydraulic fittings are to be removed from flush man-ifold, mark ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 96 PTO Circuit 1. Gear pump 2. RH PTO control manifold 3. Hydraulic hose to oil cooler 4. Hydraulic hose from oil cooler 5. LH PTO control manifold 6. LH cutting deck motor 7. Filter manifold 8. RH cutting deck motor 9. Front cutting deck motor 10. ...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 98 Cutting Deck Motor 1. Hydraulic hose 2. O -- ring 3. Cutting deck motor 4. Flange head screw (2 used) 5. 90 o hydraulic fitting 6. O -- ring 7. Hydraulic hose 8. Hex nut 9. Spindle assembly 10. Motor mount11. Spider12. Washer13. Spider hub 14. Wo...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 99 2. If removed, install woodruff key and spider hub tomotor shaft. Secure with washer and hex nut. Torque nutfrom 27 to 33 ft -- lb (37 to 44 N -- m). 3. Check for proper clearance between spider hub andspindle pulley. Install motor to cutting dec...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 100 Cutting Deck Motor Service 1. Rear cover 2. Drive gear 3. Shaft seal 4. Retaining ring 5. Flange washer 6. Front wear plate 7. Dust seal 8. Pressure seal 9. Back -- up gasket 10. O -- ring11. Body12. Idler gear 13. Cap screw (4 used)14. Front fl...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 101 6. Remove motor from the vise and remove capscrews. 7. Remove rear cover from the body. 8. Carefully remove body. Lift body straight up to re-move. Make sure the rear wear plate remains on thedrive and idler gear shafts. Remove and discard O--ri...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 102 2. Install new seals into front flange (Fig. 76): A. Press shaft seal into front flange until it reachesthe bottom of the bore. B. Install flange washer into front flange and theninstall retaining ring into the groove of the frontflange. C. Inst...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 104 PTO Control Manifolds 1. Front PTO control manifold 2. RH PTO control manifold 3. LH PTO control manifold 4. Traction control manifold 5. Cap screw (2 used per manifold) 6. Flange nut (2 used per manifold) 7. Main frame 8. Front axle frame Figur...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 108 PTO Control Manifold Service 1. Manifold body 2. Relief valve (RV2) 3. Solenoid valve (S) 4. Solenoid coil 5. Nut 6. Relief valve (RV1) 7. Spool logic element (LC1 & LC2) 8. Orifice (OR) (RH and LH only) 9. NWD #4 plug with O -- ring 10. NWD...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 110 Filter Manifold 1. Cap screw & lock washer (4 used) 2. Split flange 3. Fitting 4. O -- ring 5. Filter manifold 6. NWD #6 plug with O -- ring 7. O -- ring 8. Straight fitting (T) 9. O -- ring 10. Straight fitting (T2)11. O -- ring12. 90 o hyd...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 112 Hydraulic Oil Cooler 1. Oil cooler 2. O -- ring 3. Clamp (2 used) 4. Cap screw (2 used) 5. Washer (4 used) 6. Flange nut (4 used) 7. Hydraulic hose (2 used) 8. Flange nut (4 used) 9. Support plate (2 used) 10. Cap screw (4 used)11. Radiator asse...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 113 Removal (Fig. 84) CAUTION The radiator and oil cooler may be hot. To avoidpossible burns, allow the engine and coolingsystems to cool before working on the oil cooler. 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply pa...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 114 Cutting Deck Raise/Lower Circuit 1. Gear pump 2. LH cutting deck lift cylinder 3. Front cutting deck lift cylinder 4. RH cutting deck lift cylinder 5. Lift control manifold Figure 85 2 3 1 4 FRONT RIGHT 5 3 Figure 85 illustrates the components t...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 116 Front Deck Lift Cylinder 1. Lift cylinder 2. Lift arm (LH shown) 3. Flange nut 4. Pin 5. Flange head screw 6. Grease fitting 7. O -- ring 8. 90 o hydraulic fitting 9. O -- ring 10. Cotter pin (2 used per pin)11. Clevis pin12. Plug13. Flat washer...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 118 Front Deck Lift Cylinder Service 1. Barrel with clevis 2. Retaining ring 3. Shaft with clevis 4. Dust seal 5. Shaft seal 6. O -- ring 7. Back -- up ring 8. Head 9. Piston seal 10. Wear ring11. Piston12. Lock nut13. O -- ring Figure 87 12 11 9 10...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 119 Disassembly (Fig. 87) 1. Remove oil from lift cylinder into a drain pan by slowlypumping the cylinder shaft. Plug both ports and cleanthe outside of the cylinder. IMPORTANT: Prevent damage when clamping thecylinder’s barrel into a vise; clamp on...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 120 Wing Deck Lift Cylinder 1. Wing deck lift arm (LH shown) 2. Pin 3. Grease fitting 4. Flange nut 5. Pin 6. Cap screw 7. Hydraulic fitting (2 used per cylinder) 8. Wing deck lift cylinder (LH shown) 9. O -- ring 10. O -- ring11. Jam nut (4 used pe...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 121 Removal (Fig. 88) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Read the General Precautions for Removing andInstalling Hydraulic System Components at the begi...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 122 Wing Deck Lift Cylinder Service 1. Barrel with clevis 2. External collar 3. Shaft with clevis 4. Dust seal 5. Shaft seal 6. O -- ring 7. Back -- up ring 8. Head 9. O -- ring 10. Cushion11. Piston 12. Lock nut13. Wear ring14. Piston seal15. Steel...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 123 Disassembly (Fig. 89) 1. Remove oil from lift cylinder by slowly pumping thecylinder shaft. After removing oil from cylinder, plug bothports and clean the outside of the cylinder. IMPORTANT: Prevent damage when clamping thecylinder’s barrel into...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 124 Lift Control Manifold 1. Battery 2. Lift control manifold 3. Water separator assembly 4. Flange head screw (3 used) 5. Flange head screw (4 used) 6. Mounting plate 7. Hydraulic filter 8. Flange nut (3 used) 9. Frame Figure 90 FRONT RIGHT 2 1 9 3...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 126 Lift Control Manifold Service 1. Lift manifold 2. Solenoid valve (S2, S3, S7 and S8) 3. Solenoid coil (5 used) 4. Solenoid nut 5. Solenoid valve (S4 and S9) 6. Solenoid coil (4 used) 7. Solenoid nut 8. Solenoid valve (S1) 9. Relief valve (RV) 10...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 128 Steering and Engine Cooling Fan Circuit 1. Steering control valve 2. Oil filter 3. Steering/cooling fan control manifold 4. Steering cylinder (2 used) 5. Engine cooling fan motor Figure 94 FRONT RIGHT 2 1 3 4 5 4 Figure 94 illustrates the compon...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 130 Steering Control Valve 1. Steering tower cover 2. Flange head screw 3. Cap screw (2 used) 4. Pivot hub (3 used) 5. Steering column assembly 6. Thrust washer (4 used) 7. Steering tower 8. Hydraulic fitting (5 used) 9. O -- ring 10. Steering contr...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 131 Removal (Fig. 95) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Read the General Precautions for Removing andInstalling Hydraulic System Components at the begi...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 132 Steering Control Valve Service 1. Steering valve housing 2. Dust seal 3. O -- ring 4. Spool 5. Spring retaining ring 6. Pin 7. Sleeve 8. Centering springs/spacers 9. Cap screw (7 used) 10. End cap11. O -- ring12. Seal ring13. O -- ring14. Gerote...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 134 Steering Cylinders 1. Slotted hex nut 2. LH steering spindle 3. Ball joint 4. Hex nut 5. Grease fitting 6. Cotter pin 7. Tie rod assembly 8. Slotted hex nut 9. O -- ring 10. 45 o hydraulic fitting 11. Steering cylinder12. Cap screw13. O -- ring1...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 135 Removal (Fig. 98) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Read the General Precautions for Removing andInstalling Hydraulic System Components at the begi...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 136 Steering Cylinder Service 1. Grease fitting 2. Cap screw 3. Lock nut 4. Ball joint 5. Snap ring 6. Piston rod 7. Rod wiper 8. Rod seal 9. Head 10. Back -- up ring11. O -- ring12. O -- ring13. Piston14. Slipper seal 15. O -- ring16. Lock nut17. B...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 138 Engine Cooling Fan Motor 1. Socket head screw (2 used) 2. Cooling fan motor 3. 90 o hydraulic fitting 4. Fan hub 5. Flat washer 6. Hex nut 7. O -- ring 8. Woodruff key 9. O -- ring 10. Fan motor bracket11. Lock nut (2 used)12. Cooling fan13. Fla...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 139 Removal (Fig. 101) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Read the General Precautions for Removing andInstalling Hydraulic System Components at the beg...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 140 Engine Cooling Fan Motor Service 1. Rear cover 2. Drive gear 3. Shaft seal 4. Flange washer 5. Retaining ring 6. Front wear plate 7. Dust seal 8. Pressure seal 9. Back -- up gasket 10. O -- ring11. Body12. Idler gear 13. Cap screw (4 used)14. Fr...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 142 Steering/Engine Cooling Fan Control Manifold 1. Bulkhead mount plate 2. Flange nut (3 used) 3. Steering/cooling fan manifold 4. Carriage bolt 5. Flange head screw (7 used) 6. Tube mount plate 7. Tube clamp 8. Flange nut 9. Manifold mount plate 1...

Groundsmaster 5900/5910 Hydraulic System Page 4 -- 144 Steering/Engine Cooling Fan Control Manifold Service 1. Steering/cooling fan manifold 2. NWD #8 plug with O -- ring 3. Relief valve (RV) 4. Solenoid nut 5. Solenoid coil 6. Proportional relief valve (PRV) 7. NWD #4 plug with O -- ring (2 used) 8...

Groundsmaster 5900/5910 Page 5 -- 1 Electrical System Chapter 5 Electrical System Table of Contents GENERAL INFORMATION 2 . . . . . . . . . . . . . . . . . . . . . Operator’s Manual 2 . . . . . . . . . . . . . . . . . . . . . . . . . . Toro Electronic Controllers (TEC) 2 . . . . . . . . . . . . . . ...

Groundsmaster 5900/5910 Page 5 -- 3 Electrical System CAN -- bus Communications The two (2) TEC controllers (TEC--5001 and TEC--5002), the Cummins Engine Controller and theInfo Center Display used on the Groundsmaster 5900and 5910 communicate with each other on a CAN bussystem. Using this system all...

Groundsmaster 5900/5910 Page 5 -- 4 Electrical System Special Tools Order special tools from your Toro Distributor. Sometools may also be available from a local supplier. Multimeter The meter can test electrical components and circuitsfor current, resistance or voltage. NOTE: Toro recommends the use...

Groundsmaster 5900/5910 Page 5 -- 5 Electrical System Battery Terminal Protector Aerosol spray that should be used on battery terminalsto reduce corrosion problems. Apply terminal protectorafter the battery cable has been secured to the batteryterminal. Toro Part Number: 107 -- 0392 Figure 4 Battery...

Groundsmaster 5900/5910 Page 5 -- 6 Electrical System Troubleshooting CAUTION Remove all jewelry, especially rings and watches, before doing any electrical trouble-shooting or testing. Disconnect the batterycables unless the test requires battery voltage. For effective troubleshooting and repairs, y...

Groundsmaster 5900/5910 Page 5 -- 8 Electrical System General Run and Transport Problems Problem Possible Causes Engine continues to run, but should not, when theignition switch is turned off. Ignition switch or circuit wiring is faulty. Engine or engine controller is malfunctioning (seeChapter 3 - ...

Groundsmaster 5900/5910 Page 5 -- 10 Electrical System Cutting Deck Lift/Lower Problems Problem Possible Causes None of the cutting decks will lower. Mow/transport switch is in the transport position. Operator is not fully depressing the seat switch. TEC--5001 fuses (4F1, 4F2, 4F3, 4F4) are faulty. ...

Groundsmaster 5900/5910 Page 5 -- 11 Electrical System Info Center Display The Groundsmaster Info Center Display is a LCD devicethat is located on the steering tower. The Info Centerprovides information for the machine operator duringmachine operation, provides electrical system diagnos-tic assistan...

Groundsmaster 5900/5910 Page 5 -- 12 Electrical System Info Center controls for brightness and contrast can beaccessed by pressing and releasing the right button onthe Info Center (Fig. 9). Use the display buttons tochange the screen image and to exit the control screen. Operator Advisories Operator...

Groundsmaster 5900/5910 Page 5 -- 15 Electrical System 9. The TO SET RANGE LOW advisory identifies thatlow speed range will not engage when the Hi--Lo speedswitch is pressed (Fig. 18). A. REDUCE GROUND SPEED. Ground speedneeds to be less than 2 MPH in order to engage lowspeed range. B. DISENGAGE CRU...

Groundsmaster 5900/5910 Page 5 -- 17 Electrical System Engine Faults The Info Center monitors critical engine electrical func-tions (e.g. engine oil pressure, engine operating temper-ature) and alerts the operator if potential issues arise. Ifan engine electrical fault is identified by the Cumminsco...

Groundsmaster 5900/5910 Page 5 -- 18 Electrical System Diagnostics The Info Center DIAGNOSTICS screens allow TECcontroller electrical inputs and outputs to be tested. Noseparate code reader or computer is needed to accessthe information. Use of the DIAGNOSTICS screens canbe used to identify and trou...

Groundsmaster 5900/5910 Page 5 -- 23 Electrical System 10.LIGHT KIT operation (Fig. 36) To have the left hazard and turn signals operate, thefollowing inputs have to be initiated: D Headlight switch depressed to turn lights on (LIGHTS ON) D Left turn signal switch depressed (LEFT TURN SIGNAL ON) If ...

Groundsmaster 5900/5910 Page 5 -- 27 Electrical System Administration About The Administration ABOUT screens provide informationabout the machine, the Info Center Display, the two (2)Toro controllers and the Cummins engine controller. To access the administration ABOUT screen (Fig. 49): D Go to MAIN...

Groundsmaster 5900/5910 Page 5 -- 28 Electrical System Electrical System Quick Checks Battery Test (Open Circuit Test) Use a multimeter to measure the voltage between thebattery terminals. Set multimeter to the DC volts setting. The batteryshould be at a temperature of 60 o F to 100 o F (16 o C to 3...

Groundsmaster 5900/5910 Page 5 -- 29 Electrical System Check Operation of Interlock Switches CAUTION Do not disconnect safety switches. They are forthe operator’s protection. Check the operation ofthe interlock switches daily for proper operation.Replace any malfunctioning switches before op-erating...

Groundsmaster 5900/5910 Page 5 -- 30 Electrical System Adjustments Traction Pedal Calibration IMPORTANT: A properly installed and calibratedtraction pedal potentiometer is critical to accuratetraction system response and for reliable sensorlife. Use care when removing, installing and cali-brating th...

Groundsmaster 5900/5910 Page 5 -- 31 Electrical System Traction Pedal Teach 1. Remove the power center console located to theright of the operator seat. 2. Locate wire harness termination cap that connectsthe two (2) traction pedal Teach wires (Fig. 53). 3. Remove termination cap and connect the two...

Groundsmaster 5900/5910 Page 5 -- 32 Electrical System Component Testing For accurate resistance and/or continuity checks, elec-trically disconnect the component being tested from thecircuit (e.g. unplug the wire harness connector from theignition switch before doing a continuity check of theswitch)...

Groundsmaster 5900/5910 Page 5 -- 33 Electrical System Fuses The fuse blocks are located to the right of the operatorseat under the power center console. Identification and Function (Figs. 57 and 58) Fuse 1F1 (5 Amp) supplies power to ignition switch ter-minal B. Fuse 1F2 (30 Amp) supplies power to ...

Groundsmaster 5900/5910 Page 5 -- 34 Electrical System Maxi Fuses Three (3) 60 amp maxi fuses are used on the Ground-smaster for protection of main electrical circuits. Themaxi fuse block is located to the right of the operator seatunder the power center console (Fig. 59). Identification and Functio...

Groundsmaster 5900/5910 Page 5 -- 35 Electrical System Mega Fuses Two (2) mega fuses are used on the Groundsmaster forprotection of high amperage circuits. One of the megafuses is a 125 amp fuse and protects the alternator cir-cuit. The other mega fuse is a 300 amp fuse that is acomponent in the int...

Groundsmaster 5900/5910 Page 5 -- 36 Electrical System Cab Fuses (Groundsmaster 5910) The cab fuse blocks are located in the cab headliner. Identification and Function (Figs. 63 and 64) Fuse 1F1 (15 Amp) supplies power to the windshieldwiper. Fuse 1F2 (15 Amp) supplies power to the heater circuit. F...

Groundsmaster 5900/5910 Page 5 -- 37 Electrical System PTO Switch The PTO switch is located on the console arm (Fig. 65).The PTO switch is pulled up to engage the PTO (cuttingdecks or implement). The TEC--5002 controller monitors the position of thePTO switch (up or down). Using inputs from the PTOs...

Groundsmaster 5900/5910 Page 5 -- 38 Electrical System Cutting Deck Lift Switches The cutting deck lift switches are used as inputs for theTEC--5001 controller to raise or lower the cutting decks.When the front of a lift switch is depressed and held, thecontrolled deck (left, front or right) will lo...

Groundsmaster 5900/5910 Page 5 -- 39 Electrical System Traction Assist Switch The traction assist switch is used as an input for theTEC--5001 controller to energize the solenoid valve inthe traction control manifold. When the traction assistswitch is depressed, hydraulic flow is split equally be-twe...

Groundsmaster 5900/5910 Page 5 -- 40 Electrical System Cruise Control Switch The cruise control switch is used as an input for theTEC--5002 controller to maintain ground speed. Thecruise control function is engaged (set) when the frontof the cruise control switch is depressed. The cruisecontrol func...

Groundsmaster 5900/5910 Page 5 -- 41 Electrical System Throttle Control Switch The throttle control switch is used as an input for the en-gine control module to adjust the engine speed to oneof three (3) RPM settings: low idle (1350 RPM), mid idle(2400 RPM) or high idle (2750 RPM). The throttle con-...

Groundsmaster 5900/5910 Page 5 -- 42 Electrical System Increment/Decrement Switch The increment/decrement switch is used as an input forthe engine control module to raise or lower the enginespeed in small amounts. When the switch is depressedand held in the forward position, the engine speed willinc...

Groundsmaster 5900/5910 Page 5 -- 44 Electrical System Headlight Switch The headlight switch is used as an input for theTEC--5002 controller to provide power for the headlightsand taillights. The headlight switch is located on the op-erator side of the control console. Testing 1. Before disconnectin...

Groundsmaster 5900/5910 Page 5 -- 45 Electrical System Turn Signal Switch The turn signal switch is used as an input for theTEC--5002 controller to provide power for the turn sig-nals. The switch is located on the steering tower (Fig.81). Testing 1. Before disconnecting the turn signal switch for te...

Groundsmaster 5900/5910 Page 5 -- 47 Electrical System Air Conditioning Switch (Groundsmaster 5910) The air conditioning switch is used to control operationof the air conditioning system. The switch is located inthe cab headliner (Fig. 85). Testing 1. Make sure ignition switch is OFF. Remove key fro...

Groundsmaster 5900/5910 Page 5 -- 48 Electrical System Intake Air Heater Contactor The intake air heater contactor is used on the Ground-smaster 5900 and 5910 to provide current for the engineintake air heater. The contactor is attached to a framebracket behind the batteries (Fig. 87). The contactor...

Groundsmaster 5900/5910 Page 5 -- 49 Electrical System Seat Switch The seat switch is normally open and closes when theoperator is on the seat. The seat switch is an input for theTEC--5002 controller. If the traction system or PTOswitch is engaged when the operator raises out of theseat, the tractio...

Groundsmaster 5900/5910 Page 5 -- 50 Electrical System Parking Brake Switch The switch used for the parking brake is a normally openproximity switch that is located under the steering towercover (Fig. 90). The parking brake switch is an input forthe TEC--5002 controller. When the parking brake is no...

Groundsmaster 5900/5910 Page 5 -- 51 Electrical System Service Brake Switches The two (2) switches used for the service brakes are nor-mally open switches that are located under the footrestpanel (Fig. 90). The service brake switches provide in-puts for the TEC--5002 controller. When a brake pedalis...

Groundsmaster 5900/5910 Page 5 -- 52 Electrical System Main Power, Controller, Start and Cab (Groundsmaster 5910) Relays The Groundsmaster 5900 and 5910 use three (3) identi-cal relays to control electrical power circuits. TheGroundsmaster 5910 uses an additional relay for thecab electrical componen...

Groundsmaster 5900/5910 Page 5 -- 53 Electrical System Air Conditioning Relay (Groundsmaster 5910) A relay is used to control the air conditioning electricalpower circuit on the Groundsmaster 5910. When ener-gized by the air conditioning switch, the relay providescurrent for the air conditioning com...

Groundsmaster 5900/5910 Page 5 -- 56 Electrical System Hydraulic Valve Solenoid Coils There are numerous hydraulic valve solenoid coils onthe Groundsmaster hydraulic manifolds. When the sole-noid coils are energized, hydraulic valve shift occurs tocontrol hydraulic flow. Testing of these solenoid co...

Groundsmaster 5900/5910 Page 5 -- 58 Electrical System Fuel Sender The fuel sender is located on top of the fuel tank. Testing 1. Remove blue/red wire and black ground wire fromthe fuel sender. CAUTION When testing circuit wiring and fuel gauge, makesure wire connections are secure before turningign...

Groundsmaster 5900/5910 Page 5 -- 59 Electrical System Hydraulic Oil Temperature Sender The hydraulic oil temperature sender is attached to thehydraulic flush manifold in port TS (Fig. 106). Testing 1. Locate oil temperature sender on hydraulic flushmanifold. Disconnect wire harness connector from t...

Groundsmaster 5900/5910 Page 5 -- 61 Electrical System Traction Pedal Potentiometer The traction pedal potentiometer is connected to thetraction pedal assembly (Fig. 112). This potentiometerdetermines the neutral band for the traction pedal, thedirection of travel desired by the operator and the tra...

Groundsmaster 5900/5910 Page 5 -- 62 Electrical System Up Limit Switches The cutting deck up limit switches are normally openproximity switches that are attached to brackets locatedon the traction unit frame (Fig. 113). The sensing platesused for the switches are located on the cutting deck liftarms...

Groundsmaster 5900/5910 Page 5 -- 63 Electrical System Service and Repairs Battery Storage If the machine will be stored for more than 30 days: 1. Remove the batteries and charge them fully (seeBattery Service). 2. Either store batteries on a shelf or on the machine. 3. Leave cables disconnected if ...

Groundsmaster 5900/5910 Page 5 -- 64 Electrical System Battery Service The batteries are the heart of the electrical system. Withregular and proper service, battery life can be extended.Additionally, battery and electrical component failurecan be prevented. CAUTION When working with batteries, use e...

Groundsmaster 5900/5910 Page 5 -- 65 Electrical System Battery Inspection, Maintenance, and Testing 1. Perform following inspections and maintenance: A. Check battery case for cracks. Replace battery ifcracked or leaking. B. Check battery terminal posts for corrosion. Usewire brush to clean corrosio...

Groundsmaster 5900/5910 Page 5 -- 66 Electrical System H. Using the table below, determine the minimumvoltage for the electrolyte temperature of the centerbattery cell: Minimum Voltage Battery Electrolyte Temperature 9.6 70 o F (and up) 21.1 o C (and up) 9.5 60 o F 15.6 o C 9.4 50 o F 10.0 o C 9.3 4...

Groundsmaster 5900/5910 Page 5 -- 67 Electrical System Hydraulic Valve Solenoid Coil A hydraulic valve solenoid coil on a hydraulic controlmanifold can be replaced without opening the hydraulicsystem. Removal (Figs. 116 and 117) 1. Park machine on a level surface, lower cuttingdecks, stop engine and...

Groundsmaster 5900/5910 Page 6 -- 1 Axles, Planetaries and Brakes Chapter 6 Axles, Planetaries and Brakes Table of Contents SPECIFICATIONS 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GENERAL INFORMATION 3 . . . . . . . . . . . . . . . . . . . . . Operator’s Manual 3 . . . . . . . . ....

Groundsmaster 5900/5910 Page 6 -- 4 Axles, Planetaries and Brakes Service and Repairs Wheels 1. Front axle frame 2. Front wheel motor 3. Brake assembly 4. Planetary assembly 5. Lug nut (8 used per front wheel) 6. Front wheel assembly 7. Rear wheel motor 8. Rear wheel assembly 9. Lug nut (6 used per ...

Groundsmaster 5900/5910 Page 6 -- 5 Axles, Planetaries and Brakes Wheel Removal (Fig. 1) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Chock wheels to prevent machine from shifting. 3. Loosen, but do not remove, lu...

Groundsmaster 5900/5910 Page 6 -- 6 Axles, Planetaries and Brakes Brake Assembly 1. Front axle frame 2. Splined brake shaft 3. Retaining ring 4. Planetary assembly (2 used) 5. Lug nut (8 used per wheel) 6. Front wheel assembly 7. Gasket 8. Brake assembly (LH shown) 9. O -- ring 10. Flange head screw...

Groundsmaster 5900/5910 Page 6 -- 7 Axles, Planetaries and Brakes Remove Brake Assembly (Fig. 2) 1. Park machine on a level surface, lower cuttingdecks, stop engine and remove key from the ignitionswitch. Do not apply parking brake. 2. Drain oil from planetary/brake assembly. 3. Chock rear wheels to...

Groundsmaster 5900/5910 Page 6 -- 10 Axles, Planetaries and Brakes Brake Service 1. Brake housing (LH shown) 2. Seal 3. Pull rod 4. Clevis pin (2 used) 5. Link (2 used) 6. Hitch pin (2 used) 7. Stationary disc (4 used) 8. Rotating disc (3 used) 9. Retaining ring 10. Gasket 11. Rotating actuator12. E...

Groundsmaster 5900/5910 Page 6 -- 12 Axles, Planetaries and Brakes Planetary Wheel Drive Assembly Figure 9 FRONT RIGHT 4 6 2 3 3 7 5 20 13 16 17 14 23 20 21 22 18 10 9 19 1 24 15 12 11 21 8 70 to 90 ft -- lb (95 to 122 N -- m) 75 to 85 ft -- lb (101 to 115 N -- m) 1. Front axle frame 2. Splined brak...

Groundsmaster 5900/5910 Page 6 -- 14 Axles, Planetaries and Brakes Planetary Wheel Drive Service 1. Spindle 2. Boot seal 3. Oil seal 4. Inner bearing cone 5. Inner bearing cup 6. Wheel stud (8 used) 7. Socket head screw (16 used) 8. Lock washer (16 used) 9. Housing 10. Dowel pin (2 used) 11. Outer b...

Groundsmaster 5900/5910 Page 6 -- 15 Axles, Planetaries and Brakes NOTE: The planetary wheel drive assembly can be ser-viced with the planetary installed to machine. If thespindle (item 1) needs to be removed from machine, seePlanetary Wheel Drive Assembly in this section. Disassembly (Figs. 11 and ...

Groundsmaster 5900/5910 Page 6 -- 18 Axles, Planetaries and Brakes Rear Axle 1. Rear wheel assembly 2. Lug nut (6 used per wheel) 3. Cap screw (4 used per motor) 4. Lock washer (4 used per motor) 5. LH wheel motor 6. Rear axle 7. Tie rod 8. RH spindle 9. RH wheel motor 10. Flange bushing (4 used)11....

Groundsmaster 5900/5910 Page 6 -- 19 Axles, Planetaries and Brakes Removal (Fig. 13) 1. Park machine on a level surface, lower cuttingdecks, stop engine, engage parking brake and removekey from the ignition switch. 2. Chock front wheels to prevent machine from shifting. 3. Thoroughly clean hydraulic...

Groundsmaster 5900/5910 Page 6 -- 20 Axles, Planetaries and Brakes Rear Axle Service 1. Rear wheel assembly 2. Lug nut (6 used per wheel) 3. Cap screw (4 used per motor) 4. Lock washer (4 used per motor) 5. LH wheel motor 6. Cotter pin 7. Tie rod assembly 8. RH spindle 9. RH wheel motor 10. 45 o hyd...

Groundsmaster 5900/5910 Page 6 -- 22 Axles, Planetaries and Brakes 7. Remove the flange head screw, spindle cap and re-taining ring that secure the steering spindle into the axletube. Slide the spindle out of the axle tube to expose thespindle bushings. Locate and retrieve thrust washer(item 20) fro...

Groundsmaster 5900/5910 Page 7 -- 1 Chassis Chapter 7 Chassis Table of Contents GENERAL INFORMATION 1 . . . . . . . . . . . . . . . . . . . . . Operator’s Manual 1 . . . . . . . . . . . . . . . . . . . . . . . . . . SERVICE AND REPAIRS 2 . . . . . . . . . . . . . . . . . . . . . . Steering Tower 2 ....

Groundsmaster 5900/5910 Page 7 -- 2 Chassis Service and Repairs Steering Tower 1. Steering tower cover 2. Flange head screw 3. Cap screw (2 used) 4. Pivot hub (3 used) 5. Steering column assembly 6. Thrust washer (4 used) 7. Steering tower 8. Hydraulic fitting (5 used) 9. O -- ring 10. Steering cont...

Groundsmaster 5900/5910 Page 7 -- 3 Chassis Disassembly 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Disassemble steering tower as needed using Figure1 as a guide. Assembly 1. Assemble steering tower using Figure ...

Groundsmaster 5900/5910 Page 7 -- 4 Chassis Wing Deck Rear Impact Arm Assembly 1. Pivot hub 2. Thrust washer 3. Cap screw 4. Flat washer 5. Lock nut 6. Cap screw 7. Shim 8. Base mount 9. Joint yoke 10. Spacer11. Thrust washer12. Pivot shaft 13. Thrust washer (as required)14. Hardened washer15. Lock ...

Groundsmaster 5900/5910 Page 7 -- 6 Chassis Lift Arm Joint Yoke 1. Pivot hub 2. Thrust washer 3. Cap screw (8 used per yoke) 4. Flat washer (8 used per yoke) 5. Lock nut 6. Cap screw 7. Shim 8. Base mount 9. Joint yoke 10. Spacer11. Thrust washer12. Pivot shaft13. Thrust washer (as required)14. Hard...

Groundsmaster 5900/5910 Page 7 -- 7 Chassis 2. Press base mounts from joint yoke. Slide bearingsfrom joint yoke. 3. Use a press to remove cross and remaining bearingsfrom yoke: A. Place a small socket against one bearing and alarge socket against the yoke on the opposite side. B. While supporting th...

Groundsmaster 5900/5910 Page 7 -- 8 Chassis Front Deck Lift Arms 1. Lift cylinder (LH shown) 2. Lift arm (2 used) 3. Lift arm pin 4. Pin 5. Flange head screw 6. Roll pin 7. Flange nut 8. Flat washer 9. Jam nut (2 used per u -- bolt) 10. Cotter pin (2 used per clevis pin)11. Clevis pin 12. Plug13. Fl...

Groundsmaster 5900/5910 Page 7 -- 12 Chassis Wing Deck Lift Arms 1. Lift arm (LH shown) 2. Grease fitting 3. Grease fitting 4. Flange nut 5. Cylinder pin 6. Cap screw 7. Hydraulic fitting 8. Lift cylinder 9. Lock nut (2 used per plate) 10. Flat washer (2 used per plate)11. Sensing plate 12. Carriage...

Groundsmaster 5900/5910 Page 7 -- 16 Chassis Console Arm 1. Headlight switch 2. Lock nut 3. LH cover 4. Console arm panel 5. Ignition switch 6. RH cover 7. Screw 8. Cap screw (2 used) 9. Cover plate 10. Nut 11. Cruise switch12. 4WD traction assist switch13. Lift/lower switch (3 used)14. Lock washer1...

Groundsmaster 5900/5910 Page 7 -- 18 Chassis Traction Pedal 1. Carriage screw (6 used) 2. Traction pedal 3. Pedal abrasive 4. Pedal abrasive 5. Traction pedal shaft 6. Slotted roll pin 7. Roll pin 8. Flange nut (6 used) 9. Cap screw (4 used) 10. Mounting bracket11. Flat washer12. Compression spring ...

Groundsmaster 5900/5910 Page 7 -- 20 Chassis Operator Seat 1. Seat assembly 2. Flat washer (4 used) 3. Seat belt 4. Cap screw 5. Seat platform 6. Flange nut (4 used) 7. Carriage screw (4 used) 8. Screw (2 used) 9. R -- clamp (2 used) 10. Manual tube11. Cap screw12. Flange nut13. Support bracket14. F...

Groundsmaster 5900/5910 Page 7 -- 21 Chassis Removal (Fig. 18) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Disconnect seat electrical connector from machinewire harness. 3. Support control arm assembly to prevent...

Groundsmaster 5900/5910 Page 7 -- 22 Chassis Operator Seat Service 1. Backrest cushion 2. Seat cushion 3. Armrest cover 4. LH armrest 5. Bushing (2 used) 6. Backrest 7. Plug (2 used) 8. Cable tie (3 used) 9. LH adjustment rail 10. Bumper (2 used) 11. Washer12. Cap screw (2 used)13. Seat14. Nut15. Sp...

Groundsmaster 5900/5910 Page 7 -- 23 Chassis Disassembly (Fig. 20) 1. Remove seat from machine for service (see Opera-tor Seat Removal in this section). 2. Disassemble operator seat as necessary using Fig-ure 20 as a guide. Assembly (Fig. 20) 1. Assemble operator seat using Figure 20 as a guide. 2. ...

Groundsmaster 5900/5910 Page 7 -- 24 Chassis Operator Seat Suspension 1. Cover 2. Cover 3. Level control 4. Air control valve 5. Shock absorber 6. Air spring 7. Air tube assembly 8. Wire harness 9. Compressor 10. Bellows11. Stop12. Bumper set (2 used)13. Roller (4 used) 14. Washer (2 used)15. Tether...

Groundsmaster 5900/5910 Page 7 -- 25 Chassis NOTE: Most of the seat suspension components canbe serviced with the seat suspension base mounted tothe frame platform. If the air spring assembly (item 6) re-quires removal, the seat suspension base will have to beremoved from the seat platform. Disassem...

Groundsmaster 5900/5910 Page 7 -- 27 Chassis NOTE: Hood removal and installation requires twopeople. Removal (Fig. 23) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Unlatch and raise hood. 3. Have one person suppor...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 1 Chapter 8 Cutting Decks Table of Contents SPECIFICATIONS 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TROUBLESHOOTING 3 . . . . . . . . . . . . . . . . . . . . . . . . . Factors That Can Affect Quality of Cut 3 . . . . . . . . . GENERA...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 3 Troubleshooting There are a number of factors that can contribute to un-satisfactory quality of cut, some of which may be turfconditions. Turf conditions such as excessive thatch,uneven ground conditions, “sponginess” or attemptingto cut off too much...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 6 Service and Repairs CAUTION Never install or work on a cutting deck or lift armwith the engine running. Always stop engine andremove ignition key first. Front Cutting Deck 1. Lift cylinder (LH shown) 2. Hydraulic deck motor 3. Flat washer (2 used per...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 7 Removal (Fig. 1) 1. Position machine on a clean, level surface. Lowercutting decks, stop engine, apply parking brake and re-move key from the ignition switch. 2. Remove center deck cover to access hydraulic deckmotor. 3. Remove hydraulic motor from c...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 8 Wing Cutting Deck Figure 4 FRONT RIGHT 1. Wing cutting deck (LH shown) 2. Lift arm (LH shown) 3. Rear impact arm assembly 4. Lock nut (8 used) 5. Flange head screw (8 used) 6. Deck connection (LH shown) 7. Deck outer cover 3 4 5 6 1 2 7

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 9 Removal (Fig. 4) 1. Position machine on a clean, level surface. Lowercutting decks, stop engine, apply parking brake and re-move key from the ignition switch. 2. Remove cutting deck outer cover to access hydraulicdeck motor. 3. Remove three (3) hose ...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 10 Idler Assembly 1. Drive spindle assembly 2. Driven spindle assembly (double) 3. Driven spindle assembly (single) 4. Idler pulley 5. Flange bushing 6. Flat washer 7. Idler spacer 8. Screw 9. Lock nut 10. Torsion spring11. Torsion spring12. Washer13. ...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 12 Front Deck Winglets 1. Center deck 2. RH deck winglet 3. LH deck winglet 4. Flange bushing (4 used per winglet) 5. Bumper pad (2 used) 6. Screw (4 used) 7. Flange nut (4 used) 8. Grease fitting 9. Eccentric (2 used per winglet) 10. Cap screw (2 used...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 13 Disassembly (Fig. 9) 1. Park machine on a level surface, lower front cuttingdeck, stop engine, apply parking brake and remove keyfrom the ignition switch. 2. Remove covers from front cutting deck. 3. Using appropriate socket wrench, rotate idler arm...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 14 Blade Spindle 1. Driven spindle (double pulley) 2. Drive spindle 3. Driven spindle (high pulley) 4. Grease fitting Figure 11 RIGHT DECK LEFT DECK 1 2 3 4 1 2 3 4 4 4 1 1 4 3 2 3 4 4 4 4 FRONT DECK FRONT RIGHT

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 15 Removal (Figs. 11 and 13) 1. Park machine on a level surface, lower cuttingdecks, stop engine, apply parking brake and removekey from the ignition switch. 2. Remove covers from cutting deck to allow access toblade spindle. 3. If drive spindle is to ...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 16 Blade Spindle Service Disassembly (Fig. 14) 1. Loosen and remove lock nut from top of spindleshaft. Remove hardened washer and pulley fromspindle. For drive spindle, remove hydraulic motormount. 2. Remove the spindle shaft from the spindle housingwh...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 17 3. Using an arbor press, push the bearing cups into thetop and bottom of the spindle housing. The top bearingcup must contact the outer bearing spacer previouslyinstalled, and the bottom bearing cup must contact thesnap ring. Make sure that the asse...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 18 Castor Forks and Wheels 1. Castor arm (wing deck shown) 2. Cap 3. Castor fork 4. Castor wheel bolt 5. Lock nut 6. Castor spacer 7. Thrust washer 8. Castor wheel 9. Grease fitting 10. Compression spring11. Retaining ring12. Cap washer Figure 18 9 1 1...

Groundsmaster 5900/5910 Cutting Decks Page 8 -- 20 Deck Skids and Rollers Removal (Fig. 20 and 21) 1. Remove skids and rollers from deck using Figures20 and 21 as guides. Installation (Fig. 20 and 21) 1. Install skids and rollers to deck using Figures 20 and21 as guides. A. Make sure to install skid...

Groundsmaster 5910 Operator Cab Page 9 -- 1 Chapter 9 Operator Cab Table of Contents GENERAL INFORMATION 2 . . . . . . . . . . . . . . . . . . . . . Operator’s Manual 2 . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical Components and Schematic 2 . . . . . . . . . Air Conditioning System...

Groundsmaster 5910 Operator Cab Page 9 -- 2 General Information The information in this chapter pertains to the operatorcab on the Groundsmaster 5910. Operator’s Manual The Operator’s Manual provides information regardingthe operation, general maintenance and maintenanceintervals for your Groundsmas...

Groundsmaster 5910 Operator Cab Page 9 -- 4 Air Conditioning Compressor 1. Flange head screw (4 used) 2. Pivot plate 3. Cap screw 4. Air conditioning compressor 5. Lock nut 6. Belt 7. Button head screw (2 used) 8. Flange head screw (3 used) 9. Mount plate 10. Flange nut (4 used) 11. Tensioner arm12....

Groundsmaster 5910 Operator Cab Page 9 -- 5 CAUTION The air conditioning system is under high pres-sure. Do not loosen any system fitting or compo-nent until after the system has been completelydischarged by a certified A/C service technician. 7. Have refrigerant evacuated from air conditioningsyste...

Groundsmaster 5910 Operator Cab Page 9 -- 6 Air Conditioning Compressor Service 1. Armature bolt 2. Armature plate 3. Shim 4. Snap ring 5. Cover 6. Pulley assembly 7. Coil screw (3 used) 8. Coil 9. Body bolt (6 used) 10. Washer (6 used) 11. Snap ring12. Shaft seal13. Front cylinder head14. Body O --...

Groundsmaster 5910 Operator Cab Page 9 -- 8 Roof Assembly 1. Roof 2. Screw (2 used) 3. Flat washer (6 used) 4. Bushing 5. Rear fastener (2 used) 6. Rear spacer (2 used) 7. Panel nut 8. Roof mount 9. Flange nut 10. Flange nut (4 used)11. Headliner 12. Front spacer (2 used)13. Front fastener (2 used)1...

Groundsmaster 5910 Operator Cab Page 9 -- 9 To gain access to the heater core and air conditioningcomponents that are located under the cab roof, the roofpanel can be loosened, raised and supported. Removal (Fig. 4) 1. Park machine on a level surface, lower cuttingdecks, stop engine, engage parking ...

Groundsmaster 5910 Operator Cab Page 9 -- 10 Air Conditioning Condenser Assembly 1. Condenser cover 2. Flange nut (4 used) 3. Condenser fan 4. Condenser coil assembly 5. Flange nut (2 used) 6. Flat washer (4 used) 7. Roof 8. Bushing (4 used) 9. Flange head screw (2 used) Figure 7 2 1 3 4 7 8 6 5 9 6...

Groundsmaster 5910 Operator Cab Page 9 -- 12 Heater and Evaporator Assembly 1. Heater and evaporator assembly 2. Top cover 3. Flange head screw (2 used) 4. Drier -- receiver mount 5. Bottom cover 6. Hose clamp (2 used) 7. Speed nut (8 used) 8. Panel nut (4 used) 9. Drier -- receiver 10. Screw (8 use...

Groundsmaster 5900/5910 Foldout Drawings Page 10 -- 1 Chapter 10 Foldout Drawings Table of Contents HYDRAULIC SCHEMATIC 3 . . . . . . . . . . . . . . . . . . . . . ELECTRICAL SCHEMATICS Sheet 1 of 6 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sheet 2 of 6 5 . . . . . . . . . . ...

Page 10 -- 4 Electrical Schematic Groundsmaster 5900/5910 All relays and solenoidsare shown as de -- energized. All ground wires are black. Sheet 1 of 6 S T (-- ) -- + 55 -- A L -- + R LIN E 01 LIN E 06 58 -- A IG LIN E 1 1 LIN E 10 LIN E 05 45 44 22 29 18 16 41 07 30 47 02 GND BK/W R/W R/BK BN OR G...

Page 10 -- 5 Electrical Schematic Groundsmaster 5900/5910 All relays and solenoidsare shown as de -- energized. All ground wires are black. Sheet 2 of 6 TX B J F C R R M AXI # 2 R 1 4 7 A E G D A R CO NT RO L L E R LIN E 02 LIN E 04 LIN E 07 GR OU N D R S 232 T X -- CA N -- R S 485B C H B B 2F 4 2F ...

Page 10 -- 8 Electrical Schematic Groundsmaster 5900/5910 All relays and solenoidsare shown as de -- energized. All ground wires are black. Sheet 5 of 6 LIN E 37 R LIN E 36 LIN E 35 LIN E 33 LIN E 32 LIN E 34 LIN E 31 LIN E 30 A B C A B C GN VIO/W VIO BK BN VIO GY BK VIO BN VIO VIO BK GY SHEET 2 LIN...