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Walker T25i Operator'S Manual Download Page 79

 75

Maintenance Instructions 

REPLACING/REPAIRING

Hydrostatic Ground Drive Belt

1.  To remove the hydrostatic ground drive belt:

a.  Raise the spring-loaded belt tightener arm 

and idler pulley to relax belt.

b.  Slide belt off pulleys, then release the idler.

Hydrostatic Ground Drive Belt Assembly (Disengaged)

2.  Reverse the procedure to install the hydrostatic 

ground drive belt.

Hydrostatic Ground Drive Belt Assembly (Engaged)

Transmission 

Drive Pulley

Hydrostatic 

Ground Drive Belt

Jackshaft

Spring

Idler Pulley

Belt Tightener Arm

Hydrostatic 

Ground Drive Belt

Belt Tightener Arm

Idler Pulley

Spring

Summary of Contents for T25i

Page 1: ...Assembly Operating and Maintenance Instructions Please Read and Save These Instructions For Safety Read All Safety and Operation Instructions Prior to Operating Machine Beginning S N 125598 Effective...

Page 2: ...or others If any thing in this manual is confusing or hard to understand please contact your local authorized dealer or call our service department at 970 221 5614 for clarification before operating...

Page 3: ...ation on Tractor________ 22 Deck Installation______________________ 22 Deck Leveling________________________ 24 PREOPERATING CHECKLIST______________ 25 Operating Instructions______________ 27 CONTROL...

Page 4: ...xhaust Screen___________________ 65 Hydrostatic Transmission Cooling Fins____ 66 CHECKING SERVICING___________________ 66 Security of Air Filtration Components_____ 66 Battery_________________________...

Page 5: ...ydrostatic transmissions which drive the main wheels HYDROSTATIC TRANSMISSION transmits and controls power from the ground drive belt to the main drive wheel LEFT HAND LH refers to the left hand side...

Page 6: ...nd a local au thorized servicing agent of the component manu facturer Any unauthorized work done on these components during the warranty period may void the warranty If you have any difficulty finding...

Page 7: ...Remote mounted Donaldson RadialsealTM Walker P N 5090 1 Primary 5090 3 Safety Filter ELECTRICAL SYSTEM Battery 12 Volt 35AH 340 CCA Charging System Flywheel Alternator Charging Output 25 Amp DC Regula...

Page 8: ...DS62 DS74 Only Drive 18 x 9 50 8 Pneumatic 4 Ply Standard 18 x 10 50 10 Pneumatic 4 Ply Optional Low Profile Rear Caster 13 x 5 00 6 Pneumatic 4 Ply Standard Dual 13 x 8 00 6 Pneumatic 4 Ply Optional...

Page 9: ...in 4 to 11 5 cm DS52 and DS62 Belt Driven SD Decks Only Deck Suspension Independent Torsion Flex Frame with Caster Wheels and Counterweight Springs DIMENSIONS Tractor and Mower Length in cm Tractor O...

Page 10: ...Bushel Catcher Catcher Lift Dump Handle Deck Support Pins and Height Adjustment Hitch Pins Tilt Up Latch Spring Clip Transmission Control Rod Adjustment Nut LH Footrests Deck Support Arm LH Tilt Up D...

Page 11: ...er Door Left Hand Drive Wheel Removable Grass Catcher Screen Not Visible Instrument Panel Guard Instrument Panel Box Shock Mounted Dump Plate Oil Drain Plug Catcher Door Handle Tailwheel Fork and Whee...

Page 12: ...le Oil Fill Precleaner Tube 30 Amp Circuit Breaker PTO Gearbox Dipstick RH Transmission Lockout Lever Jackshaft LH Transmission Lockout Lever PTO Clutch Lever Battery Negative Battery Cable Positive B...

Page 13: ...by Walker Manufacturing must take full responsibility for safety The Walker Rider Lawnmower has been designed withmanysafetyfeaturestoprotecttheoperatorfrom personal harm or injury However it is neces...

Page 14: ...the operator lifts off the seat with either the Forward Speed Control FSC out of the NEUTRAL PARK position or the PTO clutch in the ENGAGED position NOTE There is a 1 2 second time delay func tion on...

Page 15: ...gnition interlock switch normally prevents starting of the machine if these con trols are in the OPERATING position 7 Do not operate machine if the operator pres ence safety switch system is not worki...

Page 16: ...and hands away from the hinge and pinch points when the door is being closed Also keep fingers and hands clear of the door frame The door may slam shut with considerable force 20 In case of a clogged...

Page 17: ...ely affects its operation perfor mance durability or use will VOID the war ranty and may cause hazardous conditions 8 Never attempt to disconnect any safety devices or defeat the purpose of these safe...

Page 18: ...eck or other implement attached 4 PTO Clutch Lever Move lever forward to disengage PTO clutch back to engage 5 Warning do not engage PTO clutch with PTO shaft disconnected Location RH Fender Part Numb...

Page 19: ...on 2 Warning rotating mower blades are a cutting dismemberment hazard to hands and feet Keep all body parts away from rotating mow er blades Do not step on end of deck Location Deck Carrier Frame Part...

Page 20: ...front body 2 Body Tilt Latch Raise lever to release Lift at back of body to raise 1 1 Caution Pinch point Keep all body parts clear when closing grass catcher door Location Catcher Door Hinge Bar LH...

Page 21: ...indoors or in other enclosed areas 8600 12 1 Location Instrument Panel Part Number 8823 6 Location Front Body Adjacent to RH Steering Lever Part Number 8600 34 1 Warning read Operator s Manual before...

Page 22: ...ver use a quick battery charger to start the engine Never jump start the engine using an other source Electricity fluctuations can damage the ECU Electronic Control Unit Always disconnect negative bat...

Page 23: ...ter or any other liquid during initial activation 2 Remove the filler caps and carefully fill each cell until the electrolyte is just above the plates 3 After the battery is filled with electrolyte re...

Page 24: ...ce Battery Clamp Secured by Wing Nut s Battery Cable Connection Battery Installation Mower Deck Assembly Deck Caster Wheels Installation 1 Remove the bolt nut axle spacer tube and spacer washers from...

Page 25: ...in bolts 3 8 16 nylock insert lock nuts and 3 8 in wave spring washers The wave washers fit between the two hinging surfaces Tight en the nuts until the shield moves freely but is not loose WARNING DO...

Page 26: ...he PTO cou pler tube onto the deck drive shaft align arrow decals then install the coupler quick discon nect onto the tractor PTO drive shaft NOTE When installing the DS52 or DS62 Mower deck make sure...

Page 27: ...uded in the Owner s Packet of materials 8 Raise the mower body instead of lifting the front of deck and clip the counterweight springs to the receptacle on front of body Lower the body to tension the...

Page 28: ...ear level Rotate the blades to point forward Measure the distance from bladetiptogroundonthefrontandrear Therear of the blade should be 1 8 to 1 4 in 3 to 6 mm higher than the front of the blade shim...

Page 29: ...e tor cleaners deicers or moisture removing agents DO NOT use gasoline blended with methyl alcohol CHECK ENGINE CRANKCASE OIL LEVEL Check the engine crankcase oil level before use and after each 8 hou...

Page 30: ...of the carrier frame and inserting the deck hook into the tilt up latch on the tractor body Before operating the tractor make sure to re engage the deck lock levers after lowering the deck to the nor...

Page 31: ...safe and efficient operation of the mower Engine Throttle The throttle control lever red knob is located on the left side of the seat and is used to control engine speed Moving the lever forward towa...

Page 32: ...a full backward lever stroke The levers are released to the FORWARD position for straight ahead ground travel NOTE Pushing forward on the steering levers will not cause any change in tractor motion th...

Page 33: ...ion of the Steering Levers Forward Position No Control Change LEFT WHEEL STEERING LEVER Reverse Drive Wheel Motion Position Neutral Park Position RIGHT WHEEL STEERING LEVER Fast Throttle Position Idle...

Page 34: ...the lockout cam the hydrostatic transmissions are re leased to permit freewheeling By releasing the cam and lowering the lever the transmissions are en gaged for normal operation The transmission leve...

Page 35: ...eter does not have a manual reset function Procedure Interval Reminder Oil Change Break In 4 6 Hours C H G OIL Lubricate and Check Levels 24 26 Hours LUBE Oil Change 49 51 Hours C H G OIL These interv...

Page 36: ...warning light MAY cause severe engine damage if a low oil pressure condition exists Over Temperature Warning Light The over temperature warning light indicates that the engine cylinder head temperatur...

Page 37: ...ther operation Circuit Breaker One manual reset circuit breaker is located on the instrument panel A button pops out if the circuit breaker trips The 7 amp circuit breaker protects the safety circuit...

Page 38: ...talled 1 Move the FSC out of NEUTRAL PARK position to the desired forward speed DO NOT hold for ward on steering levers It is not necessary to hold the FSC lever in position since a friction lock main...

Page 39: ...ngine power and blade speed for high quality cutting action Beginning Recommendations are Learn operation of the mower in an open area away from buildings fences and ob structions Learn operation on f...

Page 40: ...not in the seat The function of this switch should be checked by the op erator raising off the seat and engaging the blade clutch the en gine should stop If the switch is not work ing it should be rep...

Page 41: ...ng at low idle may cause engine run on or backfiring WARNING Remove the key from the ignition switch when leaving the mower unattended This will prevent children and inexperienced operators from start...

Page 42: ...Towing can produce excessive internal pressure and damage the trans mission To move the mower with the engine NOT running dead battery maintenance etc the hydrostatic transmissions are unlocked releas...

Page 43: ...ower engine RPM causes the mowing blade to not cut clean and tear the grass The engine is designed to be operated at full speed When mowing in adverse conditions tall and or wet grass mow the grass tw...

Page 44: ...from obstacles to reduce the chance of damage to property by thrown objects Discharge Shield Side Discharge Deflector Shield in Lowest Position When operating on a slope reduce speed and use caution t...

Page 45: ...ody should never be tilted for ward with the deck in the tilt up position This can cause the deck to unhook from the tractor and fall with considerable force potentially causing deck or tractor damage...

Page 46: ...or PTO Clutch Rear Discharge Mower Deck Grass Catcher Dump Handle Blower Body Chute Assembly Deck Discharge Chute Shear Pin Shear Bolt PTO and Blade Gear Drive Full Signal Horn Actuator Rod Powerfil D...

Page 47: ...bulldozing leaves particularly when the leaves are piled in a thick layer To make this ad justment the hitch pins in the two 2 front deck support pins are repositioned 2 to 3 notches higher while lea...

Page 48: ...deteriorates to the point that discharge of grass clippings into the blower chute is marginal Replace cutter blades if less than 3 4 in 19 mm flat section remains at the blade tip Check that the inte...

Page 49: ...n the catcher is almost full The full signal function may be checked by turning the ignition switch to RUN engaging the blade clutch engine not running opening the catcher back door and triggering the...

Page 50: ...tion DO NOT allow the catcher to drop down the gas spring that holds the catcher in the raised position is not a shock absorber for lowering the catcher 4 Close the door by holding the door handle The...

Page 51: ...s during the dump cycle Hold the toggle switch UP or DOWN to RAISE or LOWER the catcher When the catcher reaches the full raised or lowered position the power ram clutch will make a ratcheting sound R...

Page 52: ...Lift toggle switch UP or DOWN to RAISE or LOWER the catcher CAUTION The operator should be in the seat with the machine in the NEUTRAL PARK Position and the parking brake engaged and by standers stay...

Page 53: ...omponents 1 2 Catcher Door Grass Catcher Upper Arm Cable Guide Catcher Door Gas Spring Lower Arm Door Arm Actuator Gas Spring Actuator Mount Assembly Dog Leg Assembly Rubber Bumper Cable Assembly Lift...

Page 54: ...ift Rod Auxiliary Power Terminals Not Visible Grass Catcher Upper Arm Cable Guide Catcher Door Gas Spring Lower Arm Door Arm Actuator Gas Spring Assembly Safety Lockout Arm Dump Cylinder Catcher Pivot...

Page 55: ...x 54 Check Wheel Bolt Torque 75 to 85 lb ft x 68 Change Engine Oil Filter x 54 Check Regap Spark Plugs x 69 Replace Air Filter Element Safety Filter Dust Ejection Valve x 61 Replace Fuel Filter x 76 S...

Page 56: ...cking airflow Operate the engine at full speed when mowing This allows the engine to produce full horsepower and move more cooling air through the engine cool ing fins Air Cleaner System Use only Dona...

Page 57: ...the oil level BEFORE EACH USE 1 Park the mower on a level surface with the en gine stopped Also make sure the engine is cool and oil has had time to drain into the sump allow at least five 5 minutes...

Page 58: ...gine manufacturer Refer to Specifications in this manual or the engine owner s manual Use the recommended oil viscosity for the expected ambient temperature Oil with the correct vis cosity will aid s...

Page 59: ...cessive pres sure and result in oil leaks 5 Check condition of the cover gasket and replace if worn or damaged Reinstall gearbox cover plates torque screws to 24 lb in 3 N m DS52 or DS62 Mower Deck Lu...

Page 60: ...d No scheduled oil change is required However changing the oil af ter the first 100 hour break in period will extend gearbox life and is recommended 1 Remove the drain plug in the bottom of the gearca...

Page 61: ...luid level COLD mark The reservoir oil level should ALWAYS be at or slightly above the COLD mark 4 If the fluid is below the COLD mark or the trans mission is not performing properly contact your loca...

Page 62: ...elt Tightener Pivot Grease 1 Jackshaft Drive 26 PTO Clutch Lever Pivot Grease 1 27 ClutchActuator Push Rod Grease 2 28 Belt Tightener Pivot Grease 1 PTO Clutch 29 BrakeActuator Rod and Brake Oil 3 Ban...

Page 63: ...Instructions LUBRICATION 59 Chassis and Deck Lubrication Points DC42 Shown 21 23 20 25 34 36 37 38 30 39 38 21 13 33 27 26 27 28 29 31 19 17 16 30 32 35 32 14 14 15 20 22 24 2 2 1 1 12 5 4 4 11 12 7...

Page 64: ...n driven by the intake airflow separates dust from the air giving the initial stage of air clean ing Dust particles are exhausted through a single small vent in the side of the housing Since no dust i...

Page 65: ...ir Filter Restriction Gauge Location Inspect the paper element after every 100 hours of service and replace the element and safety filter yearly or when dirty or damaged More frequent replacement may...

Page 66: ...cial care to clean both the inside and outside surfaces of the outlet tube IMPORTANT Any dust left on the inside of the outlet tube will go into the engine and cause wear 8 Check the outside surface o...

Page 67: ...f the cooling system by starting the engine holding a hand adjacent to the cylinder head and feeling the cooling airflow If there is little or no airflow clean the cooling fins as described below DANG...

Page 68: ...on the tractor body Deck Lock Lever Tilt Up Hook Tilt Up Latch Tilt Up Hook and Latch Connected Deck Secured in TILT UP Position DANGER Do not operate the mower with deck in tilt up position Do not m...

Page 69: ...ovement of the blower wheel IMPORTANT With the belt removed the blow er wheel must spin freely Any binding or drag ging of the wheel is an indication of dirt build up This buildup must be cleaned to a...

Page 70: ...ut removing the transmission from the machine An additional procedure in maintaining transmission cooling is to inspect the cooling fans Replace the fan s if blades are missing or damaged Cooling Fan...

Page 71: ...to the bottom of the vent wells 1 4 to 1 2 in 6 to 13 mm above the plates 3 Replace filler caps IMPORTANT DO NOT overfill the battery Electro lyte will overflow through the vented caps onto parts of...

Page 72: ...er Deck Housing in this section for deck rais ing instructions DANGER NEVER operate cutter blades with the deck in the raised position NOTE PTO shaft must be disconnected before checking blades for st...

Page 73: ...particu larly the lower oil seal on the blade drive gearbox This seal is protected by the trash guard on the blade hub and seal protector plate on the housing but is still vulnerable to seal damage du...

Page 74: ...over bumps If any of the following conditions occur during start ing or operating a safety interlock switch may be malfunctioning Contact your Walker dealer for trou bleshooting and or replacement Wi...

Page 75: ...ts CAN result in product malfunction and possible injury to the op erator and or others Drive Belts There are four 4 individual belts on GHS models or three 3 belts on SD models Jackshaft Drive Belt E...

Page 76: ...ge position to lift the clutch idler away from the belt d Next remove the belt from the engine pulley and then the PTO drive pulley 2 Install the PTO drive belt by reversing the re moval procedure IMP...

Page 77: ...ressing the spring loaded idler arm c Roll the belt off the jackshaft pulley and remove Jackshaft Drive Belt Disengaged 2 Reverse the removal procedure to replace the jackshaft drive belt Jackshaft Dr...

Page 78: ...The belt should be clear of the blower pulley allowing free movement of the blower wheel GHS Blower Drive Belt Assembly Disengaged 2 Reverse the procedure to install the GHS blower drive belt GHS Blow...

Page 79: ...belt b Slide belt off pulleys then release the idler Hydrostatic Ground Drive Belt Assembly Disengaged 2 Reverse the procedure to install the hydrostatic ground drive belt Hydrostatic Ground Drive Be...

Page 80: ...p spilled gasoline immediately and completely Model T25i is equipped with an in line fuel filter Vi sually inspect the filter periodically and replace the filter yearly In Line Fuel Filter Fuel Filter...

Page 81: ...ction to the deck gearbox has a shear pin to provide shock load protection to the mower deck drive This system provides pri mary shock protection in case of blade impact and will normally shear before...

Page 82: ...d if blades are allowed to wear a slot may be worn into the wing tip of blade Eventually a piece of the blade may break off creating a serious potential for injury or damage Check the blades for strai...

Page 83: ...ion Adjustment Slide Steering Handle Adjustment Tilt Up Deck Adjustable Stop When the carrier frame hinge joint is properly ad justed the deck lock levers should move in and out of the engaged and dis...

Page 84: ...switch with the engine running Projectiles CAN be thrown out of the grass delivery spout and CAN cause serious injury to bystand ers or property damage 2 Measure from the exhaust screen top of catch e...

Page 85: ...81 Operator s Notes...

Page 86: ...82 Operator s Notes...

Page 87: ...proper maintenance improper use or abuse of the product alterations or failure to follow the instructions contained in the Operator s Manual for operation and maintenance B The customer shall pay any...

Page 88: ...WALKER MFG CO 5925 E HARMONY ROAD FORT COLLINS CO 80528 970 221 5614 FORM NO 112013 PRINTED IN USA www walkermowers com 2014 WALKER MFG CO...

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