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Groundsmaster 4300-- D This page is intentionally blank.
Page 3 - Table Of Contents; Chapter 2 -- Product Records and Maintenance
Groundsmaster 4300-- D Table Of Contents Chapter 1 -- Safety Safety Instructions 1 -- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . Jacking Instructions 1 -- 5 . . . . . . . . . . . . . . . . . . . . . . . . . Safety and Instruction Decals 1 -- 6 . . . . . . . . . . . . . . . . Chapter 2 -- ...
Page 5 - Chapter 1; Safety; Table of Contents; Sa
Groundmaster 4300--D Page 1 -- 1 Safety Chapter 1 Safety Table of Contents SAFETY INSTRUCTIONS 2 . . . . . . . . . . . . . . . . . . . . . . Before Operating 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . While Operating 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintena...
Page 6 - Safety Instructions; To reduce the potential for injury or death, com-; WARNING; Before Operating
Groundsmaster 4300--D Page 1 -- 2 Safety Safety Instructions Your Groundsmaster meets or exceeds safety standard specifications when weights are installed according to information in the Operator’s Manual. Although hazard control and accident prevention are partially dependent upon the design and co...
Page 7 - While Operating
Groundmaster 4300--D Page 1 -- 3 Safety While Operating 1. Sit on the seat when starting and operating the ma- chine. 2. Before starting the engine: A. Apply the parking brake. B. Make sure the traction pedal is in NEUTRAL and the PTO switch is OFF (disengaged). C. After engine is started, release p...
Page 8 - Maintenance and Service
Groundsmaster 4300--D Page 1 -- 4 Safety Maintenance and Service 1. Before servicing or making adjustments, lower cut- ting decks, stop engine, apply parking brake and re- move key from the ignition switch. 2. Make sure machine is in safe operating condition by keeping all nuts, bolts and screws tig...
Page 10 - Safety and Instruction Decals
Groundsmaster 4300--D Page 1 -- 6 Safety Safety and Instruction Decals Numerous safety and instruction decals are affixed to the traction unit and cutting units of your Groundsmas- ter. If any decal becomes illegible or damaged, install a new decal. Part numbers for decals are listed in your Part Ca...
Page 11 - Chapter 2; Product Records and Maintenance
Groundsmaster 4300--D Page 2 -- 1 Product Records and Maintenance Chapter 2 Product Records and Maintenance Table of Contents PRODUCT RECORDS 1 . . . . . . . . . . . . . . . . . . . . . . . . . MAINTENANCE 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EQUIVALENTS AND CONVERSIONS 2 ...
Page 12 - Equivalents and Conversions
0.09375 Groundsmaster 4300--D Page 2 -- 2 Product Records and Maintenance Equivalents and Conversions
Page 13 - Torque Specifications; reduced by 25% for lubricated fasteners; Fastener Identification
Groundsmaster 4300--D Page 2 -- 3 Product Records and Maintenance Torque Specifications Recommended fastener torque values are listed in the following tables. For critical applications, as determined by Toro, either the recommended torque or a torque that is unique to the application is clearly iden...
Page 16 - Other Torque Specifications; Grade 5; Conversion Factors
Groundsmaster 4300--D 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 + ...
Page 17 - Chapter 3; Kubota Diesel Engine; Operator’s Manual; IMPORTANT: The engine used on the Ground-
Groundsmaster 4300--D Page 3 -- 1 Kubota Diesel Engine Chapter 3 Kubota Diesel Engine Table of Contents GENERAL INFORMATION 1 . . . . . . . . . . . . . . . . . . . . . Operator’s Manual 1 . . . . . . . . . . . . . . . . . . . . . . . . . . Stopping the Engine 1 . . . . . . . . . . . . . . . . . . . ...
Page 18 - Specifications
Groundsmaster 4300--D Page 3 -- 2 Kubota Diesel Engine Specifications Item Description Make / Designation Kubota V1505-- T-- E3B, 4-- stroke, Liquid Cooled, OHV, Turbocharged Diesel Number of Cylinders 4 Bore x Stroke 3.07 in x 3.09 in (78 mm x 78.4 mm) Total Displacement 91.4 in 3 (1498 cc) Compres...
Page 19 - Adjustments; Adjust Throttle Control; FAST; ubot
Groundsmaster 4300--D Page 3 -- 3 Kubota Diesel Engine Adjustments Adjust Throttle Control Proper throttle operation is dependent upon proper ad- justment of throttle control. NOTE: The throttle cable swivel should be positioned in the lowest hole in the speed control lever. 1. Move throttle control...
Page 20 - Service and Repairs; Fuel System; Figure 2
Groundsmaster 4300--D Page 3 -- 4 Kubota Diesel Engine Service and Repairs Fuel System Figure 2 1. Fuel cap 2. Bushing 3. Washer head screw (2 used) 4. Flange nut (3 used) 5. Clamp (2 used) 6. Return fitting 7. Suction fitting 8. Hose clamp 9. Hose clamp 10. Fuel tank 11. Grommet 12. Fuel gauge 13. ...
Page 21 - DANGER
Groundsmaster 4300--D Page 3 -- 5 Kubota Diesel Engine DANGER Because diesel fuel is highly flammable, use caution when storing or handling it. Do not smoke while filling the fuel tank. Do not fill fuel tank while engine is running, when engine is hot or when machine is in an enclosed area. Always f...
Page 22 - Air Cleaner; Figure 4; FRONT; VACUATOR
Groundsmaster 4300--D Page 3 -- 6 Kubota Diesel Engine Air Cleaner Figure 4 1. Air cleaner assembly 2. Indicator 3. Adapter 4. Spring 5. Hex nut 6. Bolt 7. Hose 8. Hose 9. Mount bracket 10. Air cleaner stand 11. Hose clamp (3 used) 12. Flange nut (8 used) 13. Cap screw (2 used) 14. Hose clamp (2 use...
Page 24 - Exhaust System; Figure 6
Groundsmaster 4300--D Page 3 -- 8 Kubota Diesel Engine Exhaust System Figure 6 1. Gasket 2. Lock washer (2 used) 3. Flange nut (4 used) 4. Cap screw (2 used) 5. Carriage screw (4 used) 6. Flange nut (4 used) 7. Muffler support bracket 8. Flange head screw (2 used) 9. Tail pipe bracket 10. Hex nut (2...
Page 25 - CAUTION
Groundsmaster 4300--D Page 3 -- 9 Kubota Diesel Engine Removal (Fig. 6) 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove key from the ignition switch. Raise and support hood. CAUTION The muffler and exhaust pipe may be hot. To avoid possible burns...
Page 26 - Radiator; Figure 8
Groundsmaster 4300--D Page 3 -- 10 Kubota Diesel Engine Radiator Figure 8 1. Overflow bottle 2. Hose clamp (3 used) 3. Hose 4. Foam seal (2 used) 5. Foam seal (4 used) 6. Mounting bracket (2 used) 7. Oil cooler 8. Pipe plug 9. Hydraulic fitting (2 used) 10. Hose clamp (4 used) 11. Foam seal (2 used)...
Page 27 - Do not open radiator cap or drain coolant if the
Groundsmaster 4300--D Page 3 -- 11 Kubota Diesel Engine Removal (Fig. 8) 1. Park machine on a level surface, lower cutting decks, stop engine, apply parking brake and remove key from the ignition switch. 2. Raise and support the hood. CAUTION Do not open radiator cap or drain coolant if the radiator...
Page 28 - Engine; Figure 9
Groundsmaster 4300--D Page 3 -- 12 Kubota Diesel Engine Engine Figure 9 1. Engine assembly 2. Cap screw (12 used) 3. Temperature sender 4. Engine mount (4 used) 5. Flange head screw (13 used) 6. Snubbing washer (4 used) 7. Cap screw (4 used) 8. Flange nut (4 used) 9. Flange nut (14 used) 10. Fan clu...
Page 33 - Chapter 4; Hydraulic System; Hydraulic System
Groundsmaster 4300--D Hydraulic System Page 4 -- 1 Chapter 4 Hydraulic System Table of Contents SPECIFICATIONS 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GENERAL INFORMATION 3 . . . . . . . . . . . . . . . . . . . . . Operator’s Manual 3 . . . . . . . . . . . . . . . . . . . . . . ....
Page 35 - General Information; Towing Machine; IMPORTANT: If towing limits are exceeded, severe
Groundsmaster 4300--D Hydraulic System Page 4 -- 3 General Information Operator’s Manual The Operator’s Manual provides information regarding the operation, general maintenance and maintenance intervals for your Groundsmaster 4300--D. Refer to that publication for additional information when servici...
Page 36 - Hydraulic Hoses
Groundsmaster 4300--D Hydraulic System Page 4 -- 4 Hydraulic Hoses Hydraulic hoses are subject to extreme conditions such as pressure differentials during operation and exposure to weather, sun, chemicals, very warm storage condi- tions or mishandling during operation and maintenance. These conditio...
Page 41 - Hydraulic Schematic; Hydraulic
Groundsmaster 4300--D Hydraulic System Page 4 -- 9 Hydraulic Schematic Hydraulic Schematic Groundsmaster 4300 --D All solenoids are shown as de --energized NOTE: A larger hydraulic schematic is included in Chapter 8 -- F oldout Drawings GEAR PU M P CROS S TRA X MA NI FO LD LIFT CONTROL MA NI FO LD B...
Page 42 - Hydraulic Flow Diagrams; Traction; Groundsmaster
Groundsmaster 4300--D Hydraulic System Page 4 -- 10 Hydraulic Flow Diagrams Figure 10 W orking P ressure Low Pressure (Charge) Return or Suction Flow Traction C ircuit (Forward Shown) Groundsmaster 4300 --D GEAR PU M P CROS S TRA X MA NI FO LD LIFT CONTROL MA NI FO LD BYP ASS PIST ON (TRA CTION) PU ...
Page 43 - Traction Circuit; Reverse Direction
Groundsmaster 4300--D Hydraulic System Page 4 -- 11 Traction Circuit The hydraulic traction circuit consists of a variable dis- placement piston pump (P5) connected in a closed loop, parallel circuit to four (4) orbital roller vane wheel mo- tors. The traction pump input shaft is rotated by a drive ...
Page 44 - Mow
Groundsmaster 4300--D Hydraulic System Page 4 -- 12 Figure 11 W orking P ressure Low Pressure (Charge) Return or Suction Flow Mow C ircuit Groundsmaster 4300 --D GEAR PU M P CROS S TRA X MA NI FO LD LIFT CONTROL MA NI FO LD BYP ASS PIST ON (TRA CTION) PU M P DE CK CONTROL MA NI FO LD VA LV E STEER I...
Page 45 - Mow Circuit; PTO Not Engaged
Groundsmaster 4300--D Hydraulic System Page 4 -- 13 Mow Circuit A four section gear pump is coupled to the piston (trac- tion) pump. Gear pump sections (P1) and (P2) supply hydraulic flow for the mow circuit. These gear pumps take their suction from the hydraulic reservoir. The deck control manifold...
Page 46 - Mow Circuit Cutting Deck Blade Braking
Groundsmaster 4300--D Hydraulic System Page 4 -- 14 Mow Circuit Cutting Deck Blade Braking When the operator turns the PTO switch OFF or if the decks are raised with the PTO switch ON, the deck con- trol manifold proportional relief valves (PRV1 and PRV2) are de--energized causing circuit flow to by...
Page 48 - Lift
Groundsmaster 4300--D Hydraulic System Page 4 -- 16 Figure 16 W orking P ressure Low Pressure (Charge) Return or Suction Flow Lift Circuit: Raise C utting Decks Groundsmaster 4300 --D GEAR PU M P CROS S TRA X MA NI FO LD LIFT CONTROL MA NI FO LD BYP ASS PIST ON (TRA CTION) PU M P DE CK CONTROL MA NI...
Page 49 - Lift Circuit: Raise Cutting Decks; LIFT CIRCUIT: NOT RAISING OR LOWERING
Groundsmaster 4300--D Hydraulic System Page 4 -- 17 Lift Circuit: Raise Cutting Decks A four section gear pump is coupled to the piston (trac- tion) pump. Gear pump section (P4) supplies hydraulic flow to the lift control manifold and lift cylinders. The gear pump takes its suction from the hydrauli...
Page 51 - Lift Circuit: Lower Cutting Decks; Counterbalance
Groundsmaster 4300--D Hydraulic System Page 4 -- 19 Lift Circuit: Lower Cutting Decks A four section gear pump is coupled to the piston (trac- tion) pump. Gear pump section (P4) supplies hydraulic flow to the lift control manifold and lift cylinders. The gear pump takes its suction from the hydrauli...
Page 52 - Steering; LEFT
Groundsmaster 4300--D Hydraulic System Page 4 -- 20 Figure 20 W orking P ressure Low Pressure (Charge) Return or Suction Flow Steering Circuit Groundsmaster 4300 --D STEERING CYLINDER PIST ON MOVEMENT STEERING CYLINDER STEERING VA LV E PIST ON MOVEMENT STEERING VA LV E R10 R10 FROM PUMP (P3) FROM PU...
Page 53 - Steering Circuit
Groundsmaster 4300--D Hydraulic System Page 4 -- 21 Steering Circuit A four section gear pump is coupled to the piston (trac- tion) pump. Gear pump section P3 supplies hydraulic flow to the steering control valve and for the traction charge circuit. The gear pump takes its suction from the hydraulic...
Page 54 - Special Tools; Hydraulic Pressure Test Kit
Groundsmaster 4300--D Hydraulic System Page 4 -- 22 Special Tools Order Special Tools from your Toro Distributor. Hydraulic Pressure Test Kit Use to take various pressure readings for diagnostic tests. Quick disconnect fittings provided attach directly to mating fittings on machine test ports withou...
Page 55 - 0 GPM Hydraulic Tester (Pressure and Flow)
Groundsmaster 4300--D Hydraulic System Page 4 -- 23 40 GPM Hydraulic Tester (Pressure and Flow) Use to test hydraulic circuits and components for flow and pressure capacities as recommended in the Testing section of this chapter. This tester includes the following: 1. LOAD VALVE: A simulated working...
Page 56 - High Flow Hydraulic Filter Kit
Groundsmaster 4300--D Hydraulic System Page 4 -- 24 High Flow Hydraulic Filter Kit The high flow hydraulic filter kit is designed with large flow (40 GPM/150 LPM) and high pressure (5000 PSI/345 bar) capabilities. This kit provides for bi--direc- tional filtration which prevents filtered debris from...
Page 57 - Wheel Hub Puller
Groundsmaster 4300--D Hydraulic System Page 4 -- 25 Wheel Hub Puller The wheel hub puller allows safe removal of the wheel hub from the wheel motor shaft. Toro Part Number: TOR6004 Figure 29 Measuring Container Use this graduated container for doing hydraulic motor efficiency testing (motors with ca...
Page 58 - Troubleshooting; General Hydraulic System Problems; Problem
Groundsmaster 4300--D Hydraulic System Page 4 -- 26 Troubleshooting The cause of an improperly functioning hydraulic sys- tem is best diagnosed with the use of proper testing equipment and a thorough understanding of the com- plete hydraulic system. A hydraulic system with an excessive increase in h...
Page 59 - Traction Circuit Problems
Groundsmaster 4300--D Hydraulic System Page 4 -- 27 Traction Circuit Problems Problem Possible Causes Neutral is difficult to find or machine operates in one direction only Traction control linkage is misadjusted, disconnected, binding or damaged. Piston (traction) pump check relief valve is not sea...
Page 60 - Mow Circuit Problems
Groundsmaster 4300--D Hydraulic System Page 4 -- 28 Traction Circuit Problems (Continued) Problem Possible Causes Wheel motor will not turn Brakes are binding. Wheel motor is worn or damaged (NOTE: If a traction circuit component has internal wear or damage, it is possible that other traction circui...
Page 61 - Lift Circuit Problems
Groundsmaster 4300--D Hydraulic System Page 4 -- 29 Lift Circuit Problems Problem Possible Causes Single cutting deck raises slowly or not at all Cutting deck has excessive debris buildup. Lift arm or lift cylinder is binding. Flow control orifice in lift control manifold for the affected cutting de...
Page 62 - Steering Circuit Problems; Steering inoperative or sluggish
Groundsmaster 4300--D Hydraulic System Page 4 -- 30 Steering Circuit Problems Problem Possible Causes Steering inoperative or sluggish Steering components (e.g. tie rods, steering cylinder ends) are worn or binding. Steering cylinder is binding. Oil level in hydraulic reservoir is low (other hydraul...
Page 68 - Traction Circuit Charge Pressure Test
Groundsmaster 4300--D Hydraulic System Page 4 -- 36 Traction Circuit Charge Pressure Test Figure 36 GEARPUMP CROSSTRAX MANIFOLD BYPASS PISTON (TRACTION) PUMP VALVE FROM STEERING CONTROL VALVE TO LIFT CONTROL MANIFOLD TO STEERING CONTROL VALVE AND CHARGE CIRCUIT TO MOW CONTROL (REAR CUTTING UNITS) (F...
Page 70 - (Using Tester with Pressure Gauges and Flow Meter)
Groundsmaster 4300--D Hydraulic System Page 4 -- 38 Gear Pump (P3) Flow Test (Using Tester with Pressure Gauges and Flow Meter) Figure 39 GEARPUMP CROSSTRAX MANIFOLD BYPASS PISTON (TRACTION) PUMP VALVE FROM STEERING CONTROL VALVE TO LIFT CONTROL MANIFOLD TO STEERING CONTROL VALVE AND CHARGE CIRCUIT ...
Page 72 - Front Wheel Motor Efficiency Test
Groundsmaster 4300--D Hydraulic System Page 4 -- 40 Front Wheel Motor Efficiency Test Figure 41 GEARPUMP CROSSTRAX MANIFOLD BYPASS PISTON (TRACTION) PUMP VALVE FROM STEERING CONTROL VALVE TO LIFT CONTROL MANIFOLD TO STEERING CONTROL VALVE AND CHARGE CIRCUIT TO MOW CONTROL (REAR CUTTING UNITS) (FRONT...
Page 78 - (Using Tester with Pressure and Flow Capabilities); FLOW TEST SHOWN
Groundsmaster 4300--D Hydraulic System Page 4 -- 46 Gear Pump (P1) and (P2) Flow Test (Using Tester with Pressure and Flow Capabilities) Figure 47 GEAR PUMP CROSSTRAX MANIFOLD BYPASS PISTON (TRACTION) PUMP DECK CONTROL MANIFOLD VALVE FROM STEERING CONTROL VALVE FROM LIFT CONTROL MANIFOLD TO LIFT CON...
Page 80 - Deck Motor Efficiency Test; ROTATION; EFFICIENCY TEST SHOWN
Groundsmaster 4300--D Hydraulic System Page 4 -- 48 Deck Motor Efficiency Test (Using Tester with Pressure Gauges and Flow Meter) CASE DRAIN MOW CONTROL MANIFOLD MEASURINGCONTAINER ROTATION DIRECTION MOTOR OUTLET MOTOR INLET TESTER CAP Install tester in series between fitting and return hose at moto...
Page 86 - Lift Cylinder Internal Leakage Test; CHECK FOR
Groundsmaster 4300--D Hydraulic System Page 4 -- 54 Lift Cylinder Internal Leakage Test Figure 55 LEFT FRONT (#4) LIFT CYLINDER TEST SHOWN GEARPUMP LIFT CONTROL MANIFOLD TO STEERING CONTROL VALVE INTERNAL CASE DRAIN PUMP (P5) TO DECK CONTROL MANIFOLD (REAR CUTTING UNITS) (FRONT CUTTING UNITS) TO DEC...
Page 88 - Steering Relief Valve (R10) Pressure Test; STEERING WHEEL TURNED
Groundsmaster 4300--D Hydraulic System Page 4 -- 56 Steering Relief Valve (R10) Pressure Test Figure 59 STEERING WHEEL TURNED FOR RIGHT TURN OUT IN V1 R L STEERING R10 T P CYLINDER CONTROL STEERING VALVE PRESSURE GAUGE MANIFOLD TO LIFT CONTROL TO TRACTIONCHARGE CIRCUIT GEARPUMP INTERNAL CASE DRAIN P...
Page 90 - Steering Cylinder Internal Leakage Test; LOOK FOR LEAKAGE; STEERING WHEEL
Groundsmaster 4300--D Hydraulic System Page 4 -- 58 Steering Cylinder Internal Leakage Test Figure 61 STEERING CYLINDER STEERING CONTROL VALVE (FULLY EXTENDED) LOOK FOR LEAKAGE CAP STEERING WHEEL TURNED FOR RIGHT TURN R10 The steering cylinder internal leakage test should be performed if a steering ...
Page 93 - Check Hydraulic Lines and Hoses; Flush Hydraulic System
Groundsmaster 4300--D Hydraulic System Page 4 -- 61 Check Hydraulic Lines and Hoses Keep body and hands away from pin hole leaks or nozzles that eject hydraulic fluid under high pressure. Use paper or cardboard, not hands, to search for leaks. Hydraulic fluid escaping under pressure can have suffici...
Page 96 - Hydraulic Reservoir
Groundsmaster 4300--D Hydraulic System Page 4 -- 64 Hydraulic Reservoir 1. Suction strainer 2. Tank cap 3. Hydraulic reservoir 4. Adapter 5. Manifold 6. O--ring 7. Hydraulic hose 8. O--ring 9. Cap screw 10. Flat washer 11. Bumper 12. Washer head screw (2 used) 13. Clamp (2 used) 14. Flange nut 15. F...
Page 98 - Hydraulic Pump Drive Shaft
Groundsmaster 4300--D Hydraulic System Page 4 -- 66 Hydraulic Pump Drive Shaft 1. Piston (traction) pump 2. Flange nut (2 used) 3. Flange head screw (2 used) 4. Guard hoop 5. Cap screw (2 used) 6. Engine flywheel 7. Cap screw (6 used) 8. Drive shaft assembly 9. Flange nut (4 used) 10. Flange head sc...
Page 100 - Hydraulic Pump Assembly
Groundsmaster 4300--D Hydraulic System Page 4 -- 68 Hydraulic Pump Assembly 1. Drive shaft assembly 2. Cap screw (2 used) 3. Flange head screw (2 used) 4. Hydraulic pump assembly 5. O--ring 6. 90 o hydraulic fitting (2 used) 7. Hydraulic hose (2 used) 8. Pump support bracket 9. Flange nut (2 used) 1...
Page 104 - see the Sauer--Danfoss LPV Closed Circuit Axial Piston; curred, refer to Traction Circuit Component Failure
Groundsmaster 4300--D Hydraulic System Page 4 -- 72 Piston (Traction) Pump Service 1. Traction pump housing 2. Auxiliary shaft 3. Retaining ring 4. Ball bearing 5. Retaining ring 6. Seal 7. Backup washer 8. Bearing 9. O--ring 10. Trunnion cover 11. Screw (4 used) 12. Plug 13. O--ring 14. Seal 15. Tr...
Page 106 - Gear Pump Service
Groundsmaster 4300--D Hydraulic System Page 4 -- 74 Gear Pump Service 1. Front cover 2. Dowel pin (16 used) 3. Square section seal (8 used) 4. Back--up ring (8 used) 5. Pressure seal (8 used) 6. Thrust plate (8 used) 7. Drive shaft 8. Driven gear (2 used) 9. Body (P1 section) 10. Flange (3 used) 11....
Page 108 - Front Wheel Motors
Groundsmaster 4300--D Hydraulic System Page 4 -- 76 Front Wheel Motors 1. LH wheel motor 2. Lug nut (5 used per wheel) 3. Hub 4. Wheel assembly 5. Hydraulic fitting (2 used per motor) 6. Hydraulic tube 7. Hydraulic tube 8. Cap screw (2 used per wheel shield) 9. O--ring 10. Hydraulic tube 11. O--ring...
Page 112 - Rear Wheel Motors
Groundsmaster 4300--D Hydraulic System Page 4 -- 80 Rear Wheel Motors 1. Lug nut (5 used per wheel) 2. Rear axle assembly 3. Hydraulic fitting (2 used per motor) 4. Wheel assembly 5. Tie rod 6. Wheel stud (5 used per hub) 7. O--ring 8. Woodruff key 9. Cap screw (4 used per motor) 10. Lock washer (4 ...
Page 116 - Wheel Motor Service; IMPORTANT: If a wheel motor failure occurred, refer
Groundsmaster 4300--D Hydraulic System Page 4 -- 84 Wheel Motor Service 1. Cap screw (7 used) 2. End cover 3. Body seal (5 used) 4. Commutator ring 5. Commutator 6. Commutator ring 7. Manifold 8. Stator 9. Vane (7 used) 10. Rotor 11. Wear plate 12. Drive link 13. Thrust bearing 14. Coupling shaft 15...
Page 118 - CrossTrax; AWD Manifold
Groundsmaster 4300--D Hydraulic System Page 4 -- 86 CrossTrax TM AWD Manifold 1. AWD manifold 2. Hydraulic tube 3. Hydraulic tube 4. Hydraulic tube 5. O--ring 6. Hydraulic fitting (7 used) 7. O--ring 8. Dust cap (2 used) 9. Diagnostic fitting (2 used) 10. O--ring 11. Cap screw (3 used) 12. Lock wash...
Page 120 - AWD Manifold Service
Groundsmaster 4300--D Hydraulic System Page 4 -- 88 CrossTrax TM AWD Manifold Service 1. AWD manifold 2. O--ring 3. Plug (zero leak #6) 4. Seal kit 5. Check valve 6. Plug (zero leak #4) 7. O--ring 8. Orifice (.040) 9. Plug (zero leak #8) 10. O--ring 11. Seal kit 12. Bi--Directional relief valve Figu...
Page 122 - Deck Control Manifold
Groundsmaster 4300--D Hydraulic System Page 4 -- 90 Deck Control Manifold 1. Deck control manifold 2. O--ring 3. Diagnostic fitting 4. Dust cap 5. Hydraulic tube 6. O--ring 7. Hydraulic hose 8. O--ring 9. Hydraulic tube 10. Flange head screw (3 used) 11. Hydraulic tube 12. Hydraulic tube 13. Hydraul...
Page 124 - Deck Control Manifold Service; UP
Groundsmaster 4300--D Hydraulic System Page 4 -- 92 Deck Control Manifold Service 1. Deck control manifold 2. Logic element (LC1/LC2) 3. Proportional relief valve (PRV1/PRV2) 4. Solenoid coil 5. Nut 6. Plug (zero leak #4) 7. O--ring 8. Plug (zero leak #8) 9. O--ring 10. Relief valve (RV1/RV2) 11. Pi...
Page 126 - Cutting Deck Motor
Groundsmaster 4300--D Hydraulic System Page 4 -- 94 Cutting Deck Motor 1. Hydraulic deck motor (#4) 2. O--ring 3. 90 o hydraulic fitting 4. O--ring 5. Hydraulic hose 6. O--ring 7. 45 o hydraulic fitting 8. O--ring 9. Hydraulic hose 10. 90 o hydraulic fitting 11. Hydraulic hose 12. Hydraulic hose 13....
Page 128 - Cutting Deck Motor Service
Groundsmaster 4300--D Hydraulic System Page 4 -- 96 Cutting Deck Motor Service Figure 86 (45 N--m) 33 ft--lb (35 N--m) 26 ft--lb (35 N--m) 26 ft--lb 2 3 6 8 9 10 11 13 1 5 7 12 14 15 16 17 18 19 4 1. Dust seal 2. Retaining ring 3. Flange washer 4. Shaft seal 5. Front flange 6. Pressure seal 7. Backu...
Page 132 - Lift Control Manifold
Groundsmaster 4300--D Hydraulic System Page 4 -- 100 Lift Control Manifold 1. Lift control manifold 2. Flange head screw (2 used) 3. O--ring 4. Hydraulic hose 5. Hydraulic hose 6. Hydraulic hose 7. Hydraulic hose 8. Hydraulic hose 9. Hydraulic hose 10. Hydraulic tube 11. Hydraulic tube 12. O--ring 1...
Page 134 - Lift Control Manifold Service
Groundsmaster 4300--D Hydraulic System Page 4 -- 102 Lift Control Manifold Service 1. Lift control manifold 2. Solenoid valve (S1) 3. Solenoid valve (S2) 4. Solenoid coil 5. Nut 6. Nut 7. Solenoid coil 8. Proportional relief valve (PRV) 9. Logic cartridge (LC) Figure 92 FRONT RIGHT (27 N--m) 20 ft--...
Page 136 - Lift Cylinder
Groundsmaster 4300--D Hydraulic System Page 4 -- 104 Lift Cylinder 1. Lift cylinder 2. Pivot shaft 3. Flange head screw 4. Lift arm (#1 shown) 5. Flat washer 6. Hydraulic hose 7. O--ring 8. 90 o hydraulic fitting 9. O--ring 10. Hydraulic hose 11. Retaining ring 12. Thrust washer 13. Cylinder slide p...
Page 138 - Lift Cylinder Service; The lift cylinders used on Groundsmaster
Groundsmaster 4300--D Hydraulic System Page 4 -- 106 Lift Cylinder Service 1. Grease fitting 2. Shaft 3. Dust seal 4. Head 5. Head seal 6. Retaining ring 7. Back up washer 8. O--ring 9. Piston 10. Piston seal 11. O--ring 12. Grease fitting 13. Lock nut 14. Barrel Figure 96 6 8 9 10 11 13 1 5 7 12 14...
Page 140 - Steering Control Valve
Groundsmaster 4300--D Hydraulic System Page 4 -- 108 Steering Control Valve 1. Steering column 2. Hydraulic fitting (4 used) 3. Steering wheel 4. Steering wheel cover 5. Gear pump 6. Socket head screw (4 used) 7. Flange nut 8. O--ring 9. Hydraulic tube 10. Hydraulic tube 11. Hydraulic tube 12. Hydra...
Page 142 - Steering Control Valve Service; For repair of the steering control valve, see the
Groundsmaster 4300--D Hydraulic System Page 4 -- 110 Steering Control Valve Service 1. Screw (5 used) 2. O--ring (5 used) 3. End cover 4. O--ring 5. Outer gearwheel 6. Inner gearwheel 7. Distributor plate 8. O--ring 9. Cardan shaft 10. Spool 11. Sleeve 12. Cross pin 13. Spring set 14. Ring 15. Thrus...
Page 144 - Steering Cylinder
Groundsmaster 4300--D Hydraulic System Page 4 -- 112 Steering Cylinder 1. Lug nut (5 used per wheel) 2. Rear axle assembly 3. Hydraulic fitting (2 used per motor) 4. Hydraulic fitting (2 used) 5. Tie rod 6. Axle pivot pin 7. Thrust washer 8. Roll pin 9. Thrust washer 10. Jam nut 11. Grease fitting 1...
Page 146 - Steering Cylinder Service; IMPORTANT: Prevent damage when clamping the
Groundsmaster 4300--D Hydraulic System Page 4 -- 114 Steering Cylinder Service 1. Front shaft (1”) 2. Rear shaft (1.250”) 3. Front head (1”) 4. Rear head (1.250”) 5. Roll pin 6. Dust seal 7. O--ring 8. External collar (2 used) 9. Piston 10. Rear head seal 11. Front head seal 12. Wear ring 13. Dust s...
Page 148 - Oil Cooler
Groundsmaster 4300--D Hydraulic System Page 4 -- 116 Oil Cooler 1. Screen assembly 2. Oil cooler bracket 3. Flange head screw (8 used) 4. Foam seal (2 used) 5. Draw latch 6. Rivet (2 used) 7. Oil cooler 8. Hydraulic hose (2 used) 9. 90 o hydraulic fitting (2 used) 10. Hose clamp (4 used) 11. Foam se...
Page 149 - Use eye protection such as goggles when using
Groundsmaster 4300--D Hydraulic System Page 4 -- 117 Removal (Fig. 104) 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove key from the ignition switch. 2. Unlatch and open the rear screen. 3. Label all hydraulic connections for assembly pur- poses....
Page 151 - Chapter 5; Electrical System; Electrical System
Groundsmaster 4300--D Page 5 -- 1 Electrical System Chapter 5 Electrical System Table of Contents GENERAL INFORMATION 3 . . . . . . . . . . . . . . . . . . . . . Operator’s Manual 3 . . . . . . . . . . . . . . . . . . . . . . . . . . Toro Electronic Controller (TEC) 3 . . . . . . . . . . . . . . . C...
Page 154 - Multimeter
Groundsmaster 4300--D Page 5 -- 4 Electrical System Special Tools Order Special Tools from your Toro Distributor. Some tools may be available locally. Multimeter The multimeter can test electrical components and cir- cuits for current, resistance or voltage. Obtain this tool locally. NOTE: Toro reco...
Page 155 - Diagnostic Display; Battery Hydrometer
Groundsmaster 4300--D Page 5 -- 5 Electrical System Diagnostic Display The Diagnostic Display (Fig. 4) can be connected to the wiring harness connector located inside the control arm to verify correct electrical functions of the machine. TEC controller inputs and outputs can be checked using the Dia...
Page 156 - Remove all jewelry, especially rings and; Diagnostic Light
Groundsmaster 4300--D Page 5 -- 6 Electrical System Troubleshooting CAUTION Remove all jewelry, especially rings and watches, before doing any electrical trouble- shooting or testing. Disconnect the battery cables unless the test requires battery voltage. For effective troubleshooting and repairs, t...
Page 161 - TEC Controller Logic Chart; Start
Groundsmaster 4300--D Page 5 -- 11 Electrical System TEC Controller Logic Chart Each line of the following chart identifies the necessary component position (INPUTS) in order for the TEC con- troller to energize the appropriate OUTPUTS for ma- chine operation. Example: To start the engine with no op...
Page 162 - Starting Problems
Groundsmaster 4300--D Page 5 -- 12 Electrical System Starting Problems Problem Possible Causes No electrical power to machine (including gauges). Battery is discharged. Ignition switch or circuit wiring is faulty. Fusible link harness at the engine starter motor is faulty. Battery cables are loose o...
Page 164 - General Run and Transport Problems
Groundsmaster 4300--D Page 5 -- 14 Electrical System General Run and Transport Problems Problem Possible Causes Engine continues to run, but should not, when the ignition switch is turned off. Engine fuel stop solenoid is faulty. Ignition switch or circuit wiring is faulty. Main power relay or circu...
Page 165 - Cutting Deck Operating Problems
Groundsmaster 4300--D Page 5 -- 15 Electrical System Cutting Deck Operating Problems Problem Possible Causes The cutting decks remain engaged, but should not, with no operator in the seat. Seat switch or circuit wiring is faulty. TEC controller is faulty. Cutting decks run, but should not, when rais...
Page 166 - Cutting Deck Operating Problems (Continued)
Groundsmaster 4300--D Page 5 -- 16 Electrical System Cutting Deck Operating Problems (Continued) Problem Possible Causes The rear cutting decks do not operate. Front cutting decks operate. Cutting decks are able to raise and lower. Deck control manifold PRV1 solenoid coil or circuit wiring is faulty...
Page 167 - Electrical System Quick Checks; Voltage Measured; Charging System Test; At least 0.50 volt over initial battery voltage.; Glow Plug System Test
Groundsmaster 4300--D Page 5 -- 17 Electrical System Electrical System Quick Checks Battery Test (Open Circuit Test) Use a digital multimeter to measure the battery voltage. Set the multimeter to the DC volts setting. The battery should be at a temperature of 60 o to 100 o F (16 o to 38 o C). The ig...
Page 168 - Check Operation of Interlock Switches
Groundsmaster 4300--D Page 5 -- 18 Electrical System Check Operation of Interlock Switches CAUTION The interlock switches are for the protection of the operator and bystanders and to ensure cor- rect operation of the machine. Do not bypass or disconnect switches. Check the operation of the interlock...
Page 169 - Traction Neutral Switch; Adjustment
Groundsmaster 4300--D Page 5 -- 19 Electrical System Adjustments Traction Neutral Switch The traction neutral switch is a normally open proximity switch that closes when the traction pedal is in the neu- tral position. The switch mounts to a bracket on the trac- tion pump (Fig. 14). The sensing plat...
Page 170 - Parking Brake Switch
Groundsmaster 4300--D Page 5 -- 20 Electrical System Parking Brake Switch The parking brake switch is a normally open proximity switch. The parking brake switch is attached to the bot- tom of the brake pedal (Fig. 16). When the parking brake is not applied, the parking brake detent is positioned nea...
Page 172 - Ignition Switch
Groundsmaster 4300--D Page 5 -- 22 Electrical System Component Testing For accurate resistance and/or continuity checks, elec- trically disconnect the component being tested from the circuit (e.g. unplug the ignition switch connector before doing a continuity check of the switch). NOTE: Electrical t...
Page 173 - Indicator Lights
Groundsmaster 4300--D Page 5 -- 23 Electrical System Indicator Lights Glow Plug Indicator Light The glow plug indicator light should come on when the ignition switch is placed in the RUN position prior to plac- ing the ignition switch in START. The light should stay lit for approximately six (6) sec...
Page 174 - Hour Meter; Hobbs; BACK; Temperature Gauge
Groundsmaster 4300--D Page 5 -- 24 Electrical System Hour Meter The hour meter is located on the outside of the control arm. 1. Remove control arm covers to gain access to hour meter and meter terminals (see Control Arm Disassem- bly in the Service and Repairs section of Chapter 6 -- Chassis). 2. Ma...
Page 175 - PTO Switch
Groundsmaster 4300--D Page 5 -- 25 Electrical System PTO Switch The PTO switch is mounted on the control panel and al- lows the cutting decks to operate when the front of the switch is depressed. An indicator light on the switch identifies when the PTO switch is engaged. The TEC controller monitors ...
Page 176 - Headlight Switch; Testing
Groundsmaster 4300--D Page 5 -- 26 Electrical System Headlight Switch The headlight switch is located on the operator side of the control arm. This rocker switch allows the headlights to be turned on and off. Testing 1. Remove inside control arm cover to gain access to headlight switch (see Control ...
Page 177 - Seat Switch
Groundsmaster 4300--D Page 5 -- 27 Electrical System Seat Switch The seat switch is normally open and closes when the operator seat is occupied. This switch is used as an in- put for the TEC controller. If the traction system or PTO switch is engaged when the operator raises out of the seat, the eng...
Page 178 - Joystick Raise and Lower Switches
Groundsmaster 4300--D Page 5 -- 28 Electrical System Joystick Raise and Lower Switches Two (2) micro switches for the joystick are located on the lift control that is attached to the control arm. The rear switch on the control is used to lower (and engage) the cutting decks and the front switch to r...
Page 182 - Start Relay; should
Groundsmaster 4300--D Page 5 -- 32 Electrical System Start Relay The start relay is used in the engine starting circuit. When energized by the TEC controller, the start relay provides a current path to energize the engine starter solenoid. The start relay is attached to a frame bracket under the hoo...
Page 183 - Main Power and Glow Relays
Groundsmaster 4300--D Page 5 -- 33 Electrical System Main Power and Glow Relays The Groundsmaster electrical system includes two identical relays for current control. The main power and glow relays are attached to a frame bracket under the hood next to the hydraulic pump drive shaft (Fig. 36). Relay...
Page 185 - Fuses; Identification and Function
Groundsmaster 4300--D Page 5 -- 35 Electrical System Fuses The fuse block is located behind the control arm access cover (Fig. 39). In addition to the fuses in the fuse block, a 2 amp fuse (F3) is included in the wire harness to protect the logic power circuit for the TEC controller. This fuse resid...
Page 186 - Diode Assembly
Groundsmaster 4300--D Page 5 -- 36 Electrical System Diode Assembly A diode assembly (Fig. 42) is used in the Groundsmas- ter 4300--D engine wire harness. The diode is used for circuit protection from voltage spikes that occur when the engine starter solenoid is de--energized. Refer to wire harness ...
Page 187 - Fusible Link Harness
Groundsmaster 4300--D Page 5 -- 37 Electrical System Fusible Link Harness The Groundsmaster 4300--D uses four (4) fusible links for circuit protection. Three (3) of these fusible links are located in a harness that connects the starter B+ termi- nal to the wire harness (Figs. 44 and 45). The remaini...
Page 188 - Hydraulic Solenoid Valve Coil
Groundsmaster 4300--D Page 5 -- 38 Electrical System Hydraulic Solenoid Valve Coil The Groundsmaster 4300--D hydraulic system uses several hydraulic solenoid valve coils for system control. The deck control manifold includes two (2) solenoid valves (Fig. 46) and the lift control manifold includes th...
Page 189 - Temperature Sender
Groundsmaster 4300--D Page 5 -- 39 Electrical System Temperature Sender The temperature sender is attached to the water pump housing on the engine and has a gray wire attached to it (Fig. 48). The resistance of the temperature sender re- duces as the engine coolant temperature increases. The changin...
Page 190 - High Temperature Shutdown Switch
Groundsmaster 4300--D Page 5 -- 40 Electrical System High Temperature Shutdown Switch The high temperature shutdown switch is located on the water pump housing (Fig. 50). The high temperature shutdown switch is normally open and closes when en- gine coolant temperature reaches approximately 239 o F ...
Page 191 - Oil Pressure Switch
Groundsmaster 4300--D Page 5 -- 41 Electrical System Oil Pressure Switch The engine oil pressure switch is located on the engine near the oil filter (Fig.52). The oil pressure switch is a normally closed switch that opens with pressure. The oil pressure switch should open at approximately 8 PSI (0.5...
Page 192 - Fuel Stop Solenoid
Groundsmaster 4300--D Page 5 -- 42 Electrical System Fuel Stop Solenoid The fuel stop solenoid used on your Groundsmaster must be energized for the diesel engine to run. The sole- noid is mounted to the injection pump on the engine (Fig. 53). The TEC controller monitors the operation of the fuel sto...
Page 193 - Fuel Pump
Groundsmaster 4300--D Page 5 -- 43 Electrical System Fuel Pump The fuel pump used on the Groundsmaster 4300--D is attached to the inside of the left side frame rail near the fuel tank (Fig. 55). IMPORTANT: When testing fuel pump, make sure that pump is not operated without fuel. DANGER Because diese...
Page 194 - Battery Storage
Groundsmaster 4300--D Page 5 -- 44 Electrical System Service and Repairs NOTE: See the Kubota Workshop Manual, Diesel En- gine, 05--E3B Series at the end of Chapter 3 -- Kubota Diesel Engine for engine electrical component repair in- formation. Battery Storage If the machine will be stored for more ...
Page 195 - Battery Service
Groundsmaster 4300--D Page 5 -- 45 Electrical System Battery Service The battery is the heart of the electrical system. With regular and proper service, battery life can be extended. Additionally, battery and electrical component failure can be prevented. CAUTION When working with batteries, use ext...
Page 198 - Removal
Groundsmaster 4300--D Page 5 -- 48 Electrical System Hydraulic Solenoid Valve Coil A hydraulic solenoid valve coil on the deck control man- ifold (Fig. 58) or lift control manifold (Fig. 59) can be re- placed without opening the hydraulic system. Removal 1. Park machine on a level surface, lower cut...
Page 199 - Chapter 6; Chassis; Chassis
Groundsmaster 4300--D Page 6 -- 1 Chassis Chapter 6 Chassis Table of Contents SPECIFICATIONS 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GENERAL INFORMATION 2 . . . . . . . . . . . . . . . . . . . . . Operator’s Manual 2 . . . . . . . . . . . . . . . . . . . . . . . . . . SPECIAL TOO...
Page 202 - Wheels
Groundsmaster 4300--D Page 6 -- 4 Chassis Service and Repairs Wheels 1. Front wheel motor (LH shown) 2. Brake assembly (LH shown) 3. Front wheel hub 4. Lock nut 5. Brake drum 6. Front wheel 7. Lug nut (5 used per wheel) 8. Rear wheel motor (LH shown) 9. Rear wheel hub 10. Rear wheel 11. Lock nut Fig...
Page 204 - Steering Column
Groundsmaster 4300--D Page 6 -- 6 Chassis Steering Column 1. Steering column 2. Hydraulic fitting (4 used) 3. Steering wheel 4. Steering wheel cover 5. Gear pump 6. Socket head screw (4 used) 7. Flange nut 8. O--ring 9. Hydraulic tube 10. Hydraulic tube 11. Hydraulic tube 12. Hydraulic tube 13. Colu...
Page 206 - Brake Service
Groundsmaster 4300--D Page 6 -- 8 Chassis Brake Service 1. LH wheel motor 2. Lug nut (5 used per wheel) 3. Hub 4. Wheel assembly 5. Hydraulic fitting (2 used per motor) 6. Hydraulic tube 7. Hydraulic tube 8. Cap screw (2 used per wheel shield) 9. O--ring 10. Hydraulic tube 11. O--ring 12. Lock nut (...
Page 208 - Rear Axle Motor Housings
Groundsmaster 4300--D Page 6 -- 10 Chassis Rear Axle Motor Housings 1. Lug nut (5 used per wheel) 2. Rear axle 3. Motor housing (2 used) 4. RH drag link 5. Tie rod 6. O--ring 7. Hydraulic fitting (2 used per motor) 8. O--ring 9. Slotted hex nut 10. Jam nut 11. Grease fitting 12. Spindle cap 13. Reta...
Page 210 - Rear Axle
Groundsmaster 4300--D Page 6 -- 12 Chassis Rear Axle 1. Lug nut (5 used per wheel) 2. Rear axle assembly 3. Hydraulic fitting (2 used per motor) 4. Hydraulic fitting (2 used) 5. Tie rod assembly 6. Axle pivot pin 7. Thrust washer 8. Roll pin 9. Thrust washer 10. Jam nut 11. Grease fitting 12. Wheel ...
Page 211 - Rear Axle Service
Groundsmaster 4300--D Page 6 -- 13 Chassis Rear Axle Removal (Fig. 9) 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove key from the ignition switch. 2. Chock front wheels to prevent machine from shifting. 3. Remove both rear wheel assemblies (see ...
Page 214 - Control Arm
Groundsmaster 4300--D Page 6 -- 16 Chassis Control Arm 1. Arm rest 2. Headlight switch 3. LH control arm cover 4. Screw (2 used) 5. Lock nut 6. Screw 7. RH control arm cover 8. Bushing 9. Control arm assembly 10. Seat wire harness 11. Clevis pin 12. Cap screw 13. Latch 14. Swell latch (2 used) 15. A...
Page 216 - Operator Seat
Groundsmaster 4300--D Page 6 -- 18 Chassis Operator Seat 1. Seat 2. Seat base 3. Seat adjuster w/latch 4. Flat washer (4 used) 5. Seat switch harness 6. Seat switch 7. Washer head screw (2 used) 8. Armrest bracket 9. Spacer 10. Armrest 11. Cap screw 12. Flange nut 13. Flat washer (4 used) 14. Flange...
Page 218 - Mechanical Seat Suspension
Groundsmaster 4300--D Page 6 -- 20 Chassis Mechanical Seat Suspension 1. Upper housing 2. Weight adjust knob 3. Lower housing 4. Scissor assembly 5. Lock nut 6. Weight adjuster 7. Drive arm 8. Extension spring (2 used) 9. Roller guide 10. Weight adjust knob 11. Cap 12. Suspension boot 13. Pivot bloc...
Page 220 - Front Lift Arms
Groundsmaster 4300--D Page 6 -- 22 Chassis Front Lift Arms 1. #1 lift arm 2. Flange bushing (2 used per lift arm) 3. Roll pin (1 used per lift arm) 4. #4 lift arm 5. #5 lift arm 6. Flange nut (2 used) 7. RH tipper bracket 8. LH tipper bracket 9. Cap screw (2 used) 10. Bumper (4 used) 11. Flat washer...
Page 222 - Rear Lift Arms
Groundsmaster 4300--D Page 6 -- 24 Chassis Rear Lift Arms 1. Bridge plate 2. #2 lift arm 3. #3 lift arm 4. Cap screw 5. Thrust washer (2 used) 6. Cap screw (2 used) 7. Flange nut 8. Flange head screw 9. Lift arm pivot shaft (2 used) 10. Flat washer (2 used) 11. Pivot shaft (1 used per lift arm) 12. ...
Page 225 - Chapter 7; Cutting Decks; Cutting
Groundsmaster 4300--D Cutting Decks Page 7 -- 1 Chapter 7 Cutting Decks Table of Contents SPECIFICATIONS 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GENERAL INFORMATION 3 . . . . . . . . . . . . . . . . . . . . . Operator’s Manual 3 . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 227 - Never install or work on the cutting decks or lift; The Cutting Deck Operator’s Manual provides informa-
Groundsmaster 4300--D Cutting Decks Page 7 -- 3 General Information CAUTION Never install or work on the cutting decks or lift arms with the engine running. Always stop en- gine and remove key from ignition switch first. Operator’s Manual The Cutting Deck Operator’s Manual provides informa- tion reg...
Page 228 - Factors That Can Affect Quality of Cut; Factor
Groundsmaster 4300--D Cutting Decks Page 7 -- 4 Troubleshooting There are a number of factors that can contribute to un- satisfactory quality of cut, some of which may be turf conditions. Turf conditions such as excessive thatch, “sponginess”, uneven ground conditions or attempting to cut off too mu...
Page 229 - Rear Roller Bearing and Seal Installation Tools; Inner Seal Tool; Spindle Plug
Groundsmaster 4300--D Cutting Decks Page 7 -- 5 Special Tools Order special tools from your Toro Distributor. Rear Roller Bearing and Seal Installation Tools These tools are used to assemble the cutting deck rear roller. Toro Part Numbers: Inner Seal Tool 115--0852 Bearing/Outer Seal Tool 115--0853 ...
Page 230 - Blade Stopping Time
Groundsmaster 4300--D Cutting Decks Page 7 -- 6 Adjustments CAUTION Never install or work on the cutting decks or lift arms with the engine running. Always stop en- gine and remove key from ignition switch first. See the Cutting Deck Operator’s Manual for adjustment procedures for cutting decks on t...
Page 232 - Blade Spindle Assembly; Figure 3
Groundsmaster 4300--D Cutting Decks Page 7 -- 8 Service and Repairs CAUTION Never install or work on the cutting decks or lift arms with the engine running. Always stop en- gine and remove key from ignition switch first. Blade Spindle Assembly 1. Flange nut (6 used) 2. Hydraulic deck motor 3. Spindl...
Page 234 - Blade Spindle Service
Groundsmaster 4300--D Cutting Decks Page 7 -- 10 Blade Spindle Service Disassembly (Fig. 5) 1. Remove blade spindle from cutting deck (see Blade Spindle Removal in this section). 2. Loosen and remove spindle nut from top of spindle shaft. 3. Remove the spindle shaft from the spindle housing which ma...
Page 236 - Rear Roller
Groundsmaster 4300--D Cutting Decks Page 7 -- 12 Rear Roller 1. Deck frame 2. Rear roller assembly 3. Grease fitting 4. Roller shaft screw 5. Roller mount 6. Flange head screw 7. Skid bracket 8. Cap screw Figure 9 8 5 4 1 7 6 3 2 FRONT RIGHT 5 4 3 6 8 7 29 to 35 ft--lb (40 to 47 N--m) 29 to 35 ft--l...
Page 238 - Rear Roller Service; IMPORTANT: During assembly process, frequently
Groundsmaster 4300--D Cutting Decks Page 7 -- 14 Rear Roller Service Disassembly (Fig. 11) 1. Remove bearing lock nut from each end of roller shaft. 2. Loosely secure roller assembly in bench vise and lightly tap one end of roller shaft until outer seals and bearing are removed from opposite end of ...
Page 240 - Front Roller Service
Groundsmaster 4300--D Cutting Decks Page 7 -- 16 Front Roller Service Disassembly (Fig. 17) 1. Park machine on a level surface, lower cutting decks, stop engine, engage parking brake and remove key from the ignition switch. 2. Remove front roller mounting bolt. 3. Remove front roller assembly and sp...
Page 242 - Cutting Deck Carrier Frame
Groundsmaster 4300--D Cutting Decks Page 7 -- 18 Cutting Deck Carrier Frame 1. Carrier frame 2. Lynch pin 3. Thrust washer 4. Pivot shaft 5. Lift arm (#4 shown) 6. Flange nut (2 used per deck) 7. Cutting deck assembly 8. Cap screw (4 used per deck) 9. Cap screw (2 used per deck) 10. Bushing (2 used ...
Page 245 - Chapter 8; Foldout Drawings; Foldout Drawings
Groundsmaster 4300--D Foldout Drawings Page 8 -- 1 Chapter 8 Foldout Drawings Table of Contents HYDRAULIC SCHEMATIC 3 . . . . . . . . . . . . . . . . . . . . . ELECTRICAL SCHEMATIC 4 . . . . . . . . . . . . . . . . . . . . . Sheet 1 of 2 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 248 - Electrical Schematic
Page 8 -- 4 Electrical Schematic Groundsmaster 4300--D All relays and solenoids are shown as de-- energized.All ground wires are black. Sheet 1 of 2
Page 250 - Main Wire Harness Drawing
Page 8 -- 6 Groundsmaster 4300--D Main Wire Harness Drawing
Page 251 - Main Wire Harness Diagram
Page 8 -- 7 Groundsmaster 4300--D Main Wire Harness Diagram BLACK PINK BL AC K BL AC K BL AC K BL AC K RED OR A N GE BLACK RE D RE D PINK RED VIOLET/BLACK BLUE WHITE BLUE RE D RED BLACK BLACK ORANGE RE D/ B LA CK RE D RED/BLACK GREEN RED/BLACK BL AC K GR AY PINK BLACK BL U E/ YEL LO W BL AC K YEL LO...
Page 252 - Seat Wire Harness Drawing
Page 8 -- 8 Groundsmaster 4300--D Seat Wire Harness Drawing NOTE CLOCK POSITION
Page 253 - Seat Wire Harness Diagram
Page 8 -- 9 Groundsmaster 4300--D Seat Wire Harness Diagram TAN/BLACK GRAY OR A N GE BLACK GRAY BL U E PI N K BL AC K RED PINK RED WHITE RED RE D/ W HI T E BL AC K BL AC K VI O LET /BL AC K Y E LLO W BL AC K BR O W N /YEL LO W PI N K BL U E GR AY BLACK BLACK GREEN BLACK/WHITE RED/WHITE WHITE/BLACK W...
Page 254 - Engine Wire Harness Drawing
Page 8 -- 10 Groundsmaster 4300--D Engine Wire Harness Drawing
Page 255 - Engine Wire Harness Diagram
Page 8 -- 11 Groundsmaster 4300--D Engine Wire Harness Diagram PIN K GRA Y WH ITE GREEN/WHITE WH ITE ORANGE RE D BL AC K RE D/ B LA CK BLACK BLUE TA N BL U E FU SIBL E LIN K
