Page 2 - WARNING; FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT; Keep all shields in place, especially the grass discharge chute.; REMEMBER - YOUR MOWER IS ONLY AS SAFE AS THE OPERATOR!; with a serial number of
WARNING FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT IN SERIOUS INJURY OR DEATH. Read this manual completely as well as other manuals that came with your mower. • DO NOT operate on steep slopes. To check a slope, attempt to back up it (with the • cutter deck down). If the machine can back u...
Page 3 - Table of Contents; GENERAL INFORMATION
I R Table of Contents Table of Contents GENERAL INFORMATION SECTION 1 - ...................................................................................1 1.1 INTRODUCTION .................................................................................................................................
Page 4 - II; TROUBLESHOOTING CUTTING CONDITIONS
II R Table of Contents TROUBLESHOOTING CUTTING CONDITIONS SECTION 5 - ...............................................20 ADJUSTMENTS SECTION 6 - .................................................................................................23 6.1 PARkING BRAkE ADJUSTMENT ..............................
Page 5 - Section 1; INTRODUCTION; Mower Serial Number Plate Location; DIRECTION REFERENCE
1 R Section 1 INTRODUCTION 1.1 Your mower was built to the highest standards in the industr y. However, the prolonged life and maximum efficiency of your mower depends on you following the operating, maintenance and adjustment instructions in this manual. If additional information or service is need...
Page 6 - SYMBOLS; SYMBOL
2 R Section 1 SYMBOLS 1.4 SYMBOL DESCRIPTION SYMBOL DESCRIPTION Choke Transmission Parking Brake 48071S Spinning Blade On/Start Spring Tension on Idler Off/Stop Oil Falling Hazard Thrown Object Hazard Fast Slow Continuously Variable - Linear Cutting Element - Basic Symbol 481039S Pinch Point Cutting...
Page 7 - Section 2; This symbol means; DANGER; BEFORE OPERATION; NEVER allow children to operate this riding mower.; SAFETY INFORMATION
3 R Section 2 INTRODUCTION 2.1 Your mower is only as safe as the operator. Carelessness or operator error may result in ser ious bodily injur y or death. Hazard control and accident prevention are dependent upon the awareness, concern, prudence, and proper training of the personnel involved in the o...
Page 8 - OPERATION CONSIDERATIONS
4 R Section 2 DO NOT allow children to ride or play on the 3. machine, it is not a toy. Clear the area to be mowed of objects that could be 4. picked up and thrown by the cutter blades. DO NOT carry passengers. 5. DO NOT operate the machine under the influence of 6. alcohol or drugs. If the operator...
Page 10 - Lower the roll bar only when absolutely necessary.; ROPS Hinge; ROLL-OvER PROTECTION SYSTEM; Raise the roll bar as soon as clearance permits.
6 R Section 2 Lower the roll bar only when absolutely necessary. To lower the roll bar, loosen the tension knob on both 1. the left hand and right hand bar. See Figure 2-1. Remove the hairpin cotter pins and remove the two 2. (2) lock pins. See Figure 2-2. Lower the roll bar to the down position. 3....
Page 11 - Check the full length of the seat belt webbing for; Seat Belt Inspection; Use only a full width ramp.
7 R Section 2 T h e p o t e n t i a l ex p o s u r e o f t h e s e a t b e l t t o s eve r e environmental conditions make it crucial to inspect the seat belt system regularly. It is recommended that the seat belt be inspected on a daily basis for signs of damage. Any seat belt system that shows cut...
Page 12 - MAINTENANCE CONSIDERATIONS &; USING A SPARk ARRESTOR
8 R Section 2 MAINTENANCE CONSIDERATIONS & 2.6 STORAGE Never make adjustments to the machine with the 1. engine running unless specifically instructed to do so. If the engine is running, keep hands, feet, and clothing away from moving parts. Disengage drives, lower implement, set parking 2. brak...
Page 13 - SAFETY AND INSTRUCTIONAL DECALS; INSTALL BELT COVER BEFORE; FORWARD
9 R Section 2 SAFETY AND INSTRUCTIONAL DECALS 2.9 WARNING INSTALL BELT COVER BEFORE OPERATING MACHINE READ OPERATOR'S MANUAL 483402 2011 STT-25CH-LP Safety Decals 481568 FORWARD REVERSE F R 483406 483407 483402 484320 483407 483633 483425 483300 WARNING WARNING Operation of this equipmentmay create ...
Page 14 - Section 3; SPECIFICATIONS; ENGINE; Fuses, Safety Start Module; POWER HEAD; movement without running the engine and pressure relief valves
10 R Section 3 SPECIFICATIONS ENGINE 3.1 General Type ......................................................................................................... Heavy Duty Industrial/Commercial LPBrand ......................................................................................................
Page 15 - CUTTER DECk; Connected to the Cutter Deck Gearbox through a Drive Shaft.; HYDRAULIC SYSTEM
11 R Section 3 CUTTER DECk 3.4 Type ......................... Floating, Adjustable, Anti-Scalping, Hybrid Design Combines Out-Front and Belly-Mount DesignsConstruction ............................................................................................................................ Tri-Pla...
Page 16 - Section 4; CAUTION; CONTROLS AND INSTRUMENT; The ignition switch; OPERATING INSTRUCTIONS; Used to engage; Controls and Instruments
12 R Section 4 CAUTION Do not attempt to operate this mower unless you have read this manual. Learn the location and purpose of all controls and instruments before you operate this mower. CONTROLS AND INSTRUMENT 4.1 IDENTIFICATION Before operating the mower, familiarize yourself with all mower and e...
Page 17 - Dump Valve Control; SAFETY INTERLOCk SYSTEM; INITIAL RUN-IN PROCEDURES; FIRST DAY OF USE OR APPROxIMATELY 20 HOURS
13 R Section 4 Hourmeter (Figure 4-1). 6. Indicates the number of hours the engine has been operated. It only operates when the engine is running. Has preset maintenance reminders for engine and hydraulic system oil changes. Will start flashing scheduled maintenance 2 hours before preset time and co...
Page 18 - STARTING THE ENGINE; GROUND TRAvEL AND STEERING; FORWARD TRAvEL
14 R Section 4 STARTING THE ENGINE 4.4 CAUTION DO NOT USE STARTING FLUIDS. Use of starting fluids in the air intake system may be potentially explosive or cause a “runaway” engine condition that could result in engine damag e and/or personal injury. Make sure the fuel valve is completely open on the...
Page 19 - REvERSE TRAvEL; ENGAGING THE DECk DRIvE (CUTTER; Set the throttle at about 3/4 speed. Do not attempt to; Cutter engage Switch
15 R Section 4 REvERSE TRAvEL CAUTION Disengage power to the mower before backing up. Do not mow in reverse unless absolutely necessary and then only after observation of the entire area behind the mower. CAUTION Before backing up, observe the rear for persons and obstructions. Clear the area before...
Page 20 - HILLSIDE OPERATION; PARkING THE MOWER; REMOvING CLOGGED MATERIAL; ROTATING BLADES
16 R Section 4 HILLSIDE OPERATION 4.7 WARNING DO NOT operate on steep slopes. To check a slope, attempt to back up it (with the cutter deck down). If the machine can back up the slope without the wheels slipping, reduce speed and use extreme caution. Under no circumstances should the machine be oper...
Page 21 - MOvING MOWER WITH ENGINE; RECOMMENDATIONS FOR MOWING; ADJUSTING CUTTING HEIGHT; Adjusting Cutting Height
17 R Section 4 MOvING MOWER WITH ENGINE 4.11 STOPPED To “free-wheel” or move the mower around without the engine running, rotate the dump valve levers counter-clockwise. See Figure 4-4. Disengage the parking brake and move the mower by hand. When the machine is in the desired position, engage the pa...
Page 22 - Deck Release Lever; ADJUSTING THE STEERING LEvERS; Adjusting Steering Levers; ADJUSTING THE HEIGHT ADJUST; Height Adjust Pedal Locations
18 R Section 4 Insert the lanyard pin into the cutting height index at 3. the desired cutting height. Push forward on the deck lift foot lever, hold in place and pull back on the deck release lever. See Figure 4-6. Slowly release the foot pedal. A deck height decal is located on the cutting height i...
Page 23 - TOWING (OPTIONAL HITCH
19 R Section 4 TOWING (OPTIONAL HITCH 4.16 ACCESSORY) NEVER allow children or others in or on towed 1. equipment. Tow only with a machine that has a hitch designed 2. for towing. Do not attach towed equipment except at the hitch point. Follow manufacturer's recommendations for weight 3. limit for to...
Page 24 - Section 5; CONDITION; Width of Deck
20 R Section 5 CONDITION CAUSE CURE STRINGERS - OCCASIONAL BLADES OF UNCUT GRASS Width of Deck SGB020 Low engine RPM Run engine at full RPM Ground speed too fast Slow speed to adjust for conditions Wet grass Cut grass after it has dried out Dull blades, incorrect sharpening Sharpen blades Deck plugg...
Page 27 - Section 6; PARkING BRAkE ADJUSTMENT; ADJUSTMENTS; Brake Adjustment
23 R Section 6 PARkING BRAkE ADJUSTMENT 6.1 WARNING Do not operate the mower if the parking brake is not operable. Possible severe injury could result. The parking brake linkage should be adjusted whenever the parking brake lever is placed in the “ENGAGE” position and the parking brake will allow th...
Page 28 - TRAvEL ADJUSTMENTS; NEUTRAL ADJUSTMENT; RH Steering Control Rod Adjustment
24 R Section 6 TRAvEL ADJUSTMENTS 6.2 Neutral or tracking adjustments will need to be made if: A. The steering control levers are in the neutral position and the machine creeps forward or backward. (Neutral Adjustment, See Below). B. The steering control levers are in the full forward position and t...
Page 29 - TRACkING ADJUSTMENT; THROTTLE CONTROL AND CHOkE
25 R Section 6 Actuate the steering control levers forward and 6. reverse several times and return them to the neutral position. Check that the drive wheels remained in neutral and 7. readjust if necessary. Check that the steering control levers hit the stop 8. before the pumps reach full stroke. Ad...
Page 30 - BELT ALIGNMENT; CUTTER DECk LEvEL; On the front LH side of the cutter deck locate the; CUTTER DECk PITCH; Loosen the jam nut on both adjusting rods. (See
26 R Section 6 BELT ALIGNMENT 6.5 Belt alignment is important for proper performance of your Scag mower. If you experience frequent belt wear or breakage, see your authorized Scag service center for belt adjustment. CUTTER DECk ADJUSTMENTS 6.6 Cutter deck level, pitch and height are set at the facto...
Page 31 - CUTTER DECk HEIGHT; Place the cutter deck in the transport position.; Cutter Deck Height Adjustment
27 R Section 6 - NOTe - To prevent the cutter deck from teetering, all four (4) cutter deck hanging chains must have tension on them. If all four chains do not have tension on them and the deck teeters, you must readjust the cutter deck as outlined in the procedures above. CUTTER DECk HEIGHT The cut...
Page 32 - CUSTOM-CUT BAFFLE ADJUSTMENT; Custom-Cut Baffle Adjustment
28 R Section 6 CUSTOM-CUT BAFFLE ADJUSTMENT The Custom-Cut Baffle is designed to deliver optimum airflow and superior cutting performance in any type of grass. The Custom-Cut Baffle can be raised or lowered to precisely tailor the deck's performance for the type of grass being cut. The baffle can be...
Page 33 - ELECTRIC CLUTCH ADJUSTMENT; Clutch Air Gap Adjustment; Clutch Air Gap Adjustment
29 R Section 6 ELECTRIC CLUTCH ADJUSTMENT 6.7 The electric clutch serves two functions in the operation of the mower. In addition to starting and stopping the power flow to the cutter blades, the clutch also acts as a brake to assist in stopping blade rotation when the PTO is switched off or the ope...
Page 34 - Section 7; MAINTENANCE CHART - RECOMMENDED SERvICE INTERvALS; HOURS; MAINTENANCE
30 R Section 7 MAINTENANCE CHART - RECOMMENDED SERvICE INTERvALS 7.1 HOURS PROCEDURE COMMENTS BREAk-IN (FIRST 10) 8 40 100 200 500 X Check all hardware for tightness X Check hydraulic oil level See paragraph 7.3 X C h e c k a l l b e l t s f o r p r o p e r alignment See paragraph 7.8 X Change engin...
Page 35 - LUBRICATION
31 R Section 7 MAINTENANCE CHART - RECOMMENDED SERvICE INTERvALS (CONT'D) HOURS PROCEDURE COMMENTS BREAk-IN (FIRST 10) 8 40 100 200 500 X Apply grease to fittings See paragraph 7.2 X Check hardware for tightness X Change engine oil filter See paragraph 7.4 X Check hydraulic oil level See paragraph 7...
Page 36 - Lubrication Fitting Points
32 R Section 7 GREASE FITTING LUBRICATION LUBRICANT / INTERVAL LITHIUM MP WHITE GREASE 2125( 40 HOURS / WEEKLY ) CHASSIS GREASE( 100 HOURS / BI-MONTHLY ) CHASSIS GREASE( 200 HOURS / MONTHLY ) 4 1 6 3 5 7 2 CHASSIS GREASE( 500 HOURS / YEARLY ) STT-25CH-LP Grease Points 1 8 4 3 9 5 9 2 10 Lubrication ...
Page 37 - Hydraulic Oil Filter; A. CHECkING HYDRAULIC OIL LEvEL; Hydraulic Oil Reservoir; B. CHANGING HYDRAULIC OIL
33 R Section 7 - IMPORTANT - The hydraulic oil should be changed if you notice the presence of water or a rancid odor to the hydraulic oil. Park the mower on a level surface and stop the 1. engine. Place a suitable container under the hydraulic oil 2. filter. Remove the fill cap from the reservoir a...
Page 38 - Drain Plug Location; C. CHANGING ENGINE OIL FILTER; ENGINE FUEL SYSTEM; engine Dipstick Location; A. CHECkING ENGINE CRANkCASE OIL LEvEL
34 R Section 7 STT99CEC ENGINE OIL FILTER DRAINPLUG Drain Plug Location Figure 7-5. C. CHANGING ENGINE OIL FILTER After the first 20 hours of operation, replace the engine oil filter. Thereafter, replace the oil filter after every 200 hours of operation or every month, whichever occurs first. Refer ...
Page 39 - Be sure all fittings are tight and leak proof.; ENGINE AIR CLEANER
35 R Section 7 WARNING DO NOT overfill. Follow approved procedures for filling. This cylinder is designed to contain LP Gas; a flammable liquid and gas under pressure. DO NOT expose to fire or heat above 120 degrees Farenheit. Be sure all fittings are tight and leak proof. DO NOT attempt repairs. Co...
Page 40 - BATTERY ELECTROLYTE FIRST AID; A. CHARGING THE BATTERY; The booster battery must be a 12 volt type. If a; DRIvE BELTS
36 R Section 7 WARNING Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to cause cancer and reproductive harm. Wash hands after handling. WARNING Electric storage battery fluid contains sulfuric acid which is POISON and can cause SEvERE CHEMICAL BURN...
Page 41 - CUTTER BLADES; Blade Sharpening
37 R Section 7 CUTTER BLADES 7.9 A. BLADE INSPECTION Remove the ignition key before servicing the blades. 1. Raise the mower deck to the highest position. Place 2. the lanyard pin in the highest cutting height position to prevent the cutter deck from falling. WARNING Always wear proper hand and eye ...
Page 42 - Blade Replacement; TIRES; A. CHECkING LUBRICANT LEvEL; Cutter Deck Gearbox
38 R Section 7 WASHER HEX HEAD BOLT CUTTER BLADE SPINDLE ASSEMBLY CUTTER BLADE SPACER HEX HEAD BOLT / NUT CUTTER DECK SPINDLESHAFT HEX NUT-TORQUETO 75 LB-FT Blade Replacement Figure 7-7. - NOTe - Be sure that the blade is installed with the lift wing toward the top. Install the spacer onto the blade...
Page 43 - B. CHANGING LUBRICANT
39 R Section 7 B. CHANGING LUBRICANT The lubr icant in the cutter deck gearbox should be changed after ever y 500 hours of operation or yearly, whichever occurs first. Place a suitable container beneath the cutter deck 1. gearbox and locate the gearbox drain plug. Remove the drain plug, drain the lu...
Page 44 - Section 8; SCAG APPROvED ATTACHMENTS AND; Scag approved attachments and accessories:; ILLUSTRATED PARTS LIST
40 R Section 8 SCAG APPROvED ATTACHMENTS AND 8.1 ACCESSORIES. Attachments and accessories manufactured by companies other than Scag Power Equipment are not approved for use on this machine. Scag approved attachments and accessories: Mulch Plate (p/n 9287, 9288) • Hurricane Mulch (p/n 9284, 9285) • S...
Page 47 - Description
43 R Section 8 52v CUTTER DECk Ref. No. Part No. Description Ref. No. Part No. Description 123456789101112 131415161718192021222324252627282930313233343536373839404142434445 46185904003-4004019-04481625-0148163204003-2642247804017-2704043-0604021-0546184504001-1104001-1204021-2204020-0945124004001-4...
Page 56 - STT SUSPENSION SEAT
52 R Section 8 Ref. No. Part No. Description 12345 67 8910 11 1213 929204001-17804040-11483594482950482945482946482940482943482948482942482952482944482948482941 04001-12483440 Suspension Seat Assembly w/seat beltBolt, Hex Head 7/16-20 x 1”Flatwasher, 7/16-.500 x 1.25 x .083Retractable Seat Belt Armr...
Page 72 - Commercial; California Only
68 R Section 8 REPLACEMENT DECALS AND INFORMATION PLATES 1 2 5 3 6 4 9 16 18 8 2011 STT-25CH-LP Decals 1 WARNING INSTALL BELT COVER BEFORE OPERATING MACHINE READ OPERATOR'S MANUAL 481568 FORWARD REVERSE F R 13 Heavy-Duty Commercial 481971 12 17 10 11 15 14 483762 CHOKE SLOW FAST 482983 PUSH IN TO DI...
Page 73 - PROPANE
69 R Section 8 REPLACEMENT DECALS AND INFORMATION PLATES Ref. No. Part No. Description Ref. No. Part No. Description 12345 67891011121314151617181920 48340748340648304448390048320048320148156848166348197148340248429348342548251548298348363348315848256548249348 4321 484320482577 Decal, Danger-Spinnin...
Page 75 - LIMITED WARRANTY - COMMERCIAL EqUIPMENT
LIMITED WARRANTY - COMMERCIAL EqUIPMENT Any part of the Scag commercial mower manufactured by Scag Power Equipment and found, in the reasonable judgment of Scag, to be defective in materials or workmanship, will be repaired or replaced by an Authorized Scag Service Dealer without charge for parts an...
Page 76 - Scag Power Equipment
© 2011 Scag Power Equipment Division of Metalcraft of Mayville, Inc.
