Walker Rider Lawnmowers MBS26 Owner'S Manual Download Page 77 | Manualshive

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Effective Date 09-15-10

Use only genuine

Walker

®

replacement parts.

73

Refer to

Body / Chassis Assembly

Refer to

Engine Group

(Model MBS26 or MBS)

Refer to

Hydrostatic Ground

Drive Assemblies

MAIN COMPONENT POWER TRANSMISSION

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Summary of Contents for MBS26

Page 1: ... Maintenance Instructions and ILLUSTRATED PARTS MANUAL Model MBS26 26 HP Model MBS 27 HP Please Read and Save These Instructions Effective Date 09 15 10 For Safety Read All Safety and Operation P N 2000 2 Instructions Prior to Operating Machine C ...

Page 2: ...help prevent possible injury to the operator or others If anything 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 or servicing this mower This manual covers Model MBS26 with Kohler CH26 26 HP Electronic Fuel Injection EFI gasoline engine or optional Kohler Command CH740 ...

Page 3: ...6 Parking Brake_________________________ 26 Oil Pressure Warning Light______________ 27 Engine Service Light Model MBS26 Only __ 27 Over Temperature Warning Light_ ________ 27 Transaxle Lockout Rods_ _______________ 28 Hourmeter____________________________ 28 STARTING THE ENGINE__________________ 30 ADJUSTING GROUND SPEED AND STEERING_ __________________ 30 ENGAGING THE MOWER_________________ 32 S...

Page 4: ...nt_ ______ 60 Steering Handles Adjustment____________ 61 Neutral Position Adjustment_____________ 61 Full Forward Speed Adjustment__________ 62 Straight Tracking Adjustment_ ___________ 63 FSC Switch Neutral Adjustment_________ 63 Forward Speed Control Friction Adjustment____________________ 64 Blade Clutch PTO _____________________ 65 Clutch Engagement Belt Tension_________ 65 Clutch Disengagemen...

Page 5: ...rive the main wheels LEFT HAND LH refers to the left hand side of the tractor when the operator is seated facing forward in the tractor seat POWER TAKE OFF PTO transmits engine power to run the cutter blades RIGHT HAND RH refers to the right hand side of the tractor when the operator is seated facing forward in the tractor seat SIDE DISCHARGE SD mows but does not col lect the mowed material STEERI...

Page 6: ...eneral service instructions are provided For the service of these components during the limited warranty period it is important to find a local authorized servicing agent of the com ponent manufacturer Any unauthorized work done on these components during the warranty period may void the warranty If you have any dif ficulty finding an authorized outlet or obtaining warranty service please contact ...

Page 7: ...Capacity 10 Gallons 38 0 liters Two Independent Five 5 Gal lon Tanks with Selector Valve 10 Gallons 38 0 liters Two Independent Five 5 Gal lon Tanks with Selector Valve Fuel Automotive Grade Unleaded Gasoline 87 Octane or Gasohol Up to 10 Ethyl Alcohol 90 Unleaded Gasoline by Volume Automotive Grade Unleaded Gasoline 87 Octane or Gasohol Up to 10 Ethyl Alcohol 90 Unleaded Gasoline by Volume Coolin...

Page 8: ...Motor Oil Minimum SL Grade Oil Transmission Fluid Capacity 79 fl oz 2336 ml 1 qt 1 liter Transmission Cooling Cooling Fan Mounted on Drive Pulley Cooling Fan Mounted on Drive Pulley Ground Travel Speed Forward m p h km h Reverse m p h km h 0 9 0 14 Infinitely Variable 0 5 0 8 Infinitely Variable 0 9 0 14 Infinitely Variable 0 5 0 8 Infinitely Variable BLADE DRIVE PTO Shaft Sliding Spline Shaft wit...

Page 9: ...cm Three 3 Clockwise Rotating Blades 60 in 152 cm SD Model 20 1 2 in 52 cm Three 3 Clockwise Rotating Blades 20 1 2 in 52 cm Three 3 Clockwise Rotating Blades Deck Suspension Torsion Flex Frame with Caster Wheels and Counterweight Springs Torsion Flex Frame with Caster Wheels and Counterweight Springs CURB WEIGHT Approximate Tractor Only 730 lb 331 kg 735 lb 333 kg SD Tractor and 60 in SD Deck 111...

Page 10: ... Control FSC Friction Adjustment Deck Support Arm Not Visible Height Adjustment Arm Cutting Height Adjustment Deck Discharge Shield Deck Height Lift Chain Tilt Up Hook Not Visible Deck Caster Wheels Tilt Bar Deck Handle Deck Support Arm Not Visible Tilt Up Latch Footrests Counterweight Spring and Protective Cover Deck Height Adjustment Trigger Not Visible ...

Page 11: ...Component Identification 7 Rear View and Left Side View Spread Tail Wheel Battery Not Visible Footrest Catch Assembly Left Hand Drive Wheel Footrests Fuel Pickup Line Fuel Tank and Cap Muffler Tailpipe ...

Page 12: ...e Lockout Rod LH Transaxle RH Transaxle Parking Brake Fuel Pickup Line Fuel Tank Cap Fuel Tank RH Transmission Control Arm Air Filter Cover Cummins Fleetguard OptiAir Air Cleaner PTO Clutch Lever Rubber Bumpers Body Support Air Intake Plenum Air Intake Hose Fuel Return Line Steering Levers Dampeners Transaxle Expansion Reservoirs Fuel Filter Fuel Pump Not Visible Fuel Selector Valve ...

Page 13: ...m Oil Fill Dipstick LH Transaxle Lockout Rod LH Transaxle RH Transaxle Parking Brake Fuel Pickup Line Fuel Tank Cap Fuel Tank RH Transmission Control Arm Rubber Bumpers Body Support Air Filter Cover Air Intake Plenum Air Intake Hose Fuel Selector Valve Steering Levers Dampeners Cummins Fleetguard OptiAir Air Cleaner Transaxle Expansion Reservoirs Fuel Pump Fuel Filter ...

Page 14: ... Walker Manufacturing must take full responsibility for safety The Walker Rider Lawnmower has been designed withmanysafetyfeaturestoprotecttheoperatorfrom personal harm or injury However it is necessary for the operator to use safe operating procedures at all times Failure to follow safety instructions con tained in this manual may result in personal in jury or damage to equipment or property If y...

Page 15: ...es open flames or sparks away from the fuel tanks and fuel container d Always fill the fuel tank s outdoors using care Fill to about one inch from the top of the tank Use a funnel or spout to prevent spilling e Replace the machine fuel cap s and con tainer cap securely and clean up any spilled fuel before starting the engine 11 Never attempt to make any adjustments while the engine is running exce...

Page 16: ...ktothereartobesurenoone is behind the machine Watch carefully for traffic when crossing or working near roadways 12 Disengagethebladedrivewhentransportingthe machine across drives sidewalks etc Never raise the mower deck while blades are rotat ing DANGER Do not mow or dump grass within 5 feet 1 5 meters of an embankment or retaining wall with drop off 13 The maximum recommended side slope op erati...

Page 17: ...enanceadjustment keephands feet andcloth ing away from moving parts Do not wear jew elry or loose clothing 6 Always use the proper engine service manual when working on the engine Unauthorized maintenance operations or modifications to the engine may result in unsafe operating conditions 7 Altering the equipment or engine in any manner which adversely affects its operation perfor mance durability ...

Page 18: ...Part Number is listed below and in the Parts Section LH Fender 2802 1 Model MBS Only RH Fender 2802 2 Engine Shroud 5855 Rear Body Above Muffler 5805 On Engine 6810 Center Body Behind Transaxles 9804 Deck Carrier Frame 8647 Deck Carrier Frame 8653 LH Fender 2802 3 Model MBS26 Only Deck Housing 2724 7 ROTATE KNOB CW UNTIL PLAY IS REMOVED PLUS ONE ADDITIONAL TURN CHECK EVERY 8 HOURS OF USAGE DSD60 D...

Page 19: ...fore putting the machine into operation The Decal Part Number is listed below and in the Parts Section On Transfer Mount MBS 2010 4 Flex Coupling Guard 4107 1 Front Body Adjacent to RH Steering Lever MBS 2807 1 Deck Carrier Frame 2748 Rear Body Underside 2107 4 Deck Housing DRD52 2749 1 Deck Housing 8653 1 Deck Housing DSD60 2749 2 On Transfer Mount MBS26 2010 5 Front Body Adjacent to RH Steering ...

Page 20: ...ut needs service refer to the following instruc tions IMPORTANT Makesurebatteryissecurelymounted in the frame A loose battery may cause damage to thecaseresultinginacidleakageandse veredamage to the machine Ahazard may be cre ated by damage to critical working parts and safety systems Wet Battery Service Ifthebatteryhasbeenshippedwet buttheelectrolyte level is low or the battery needs to be charge...

Page 21: ...arger is un plugged before connecting or disconnect ing cables to the battery IMPORTANT On MBS26 models always discon nectthenegative batteryterminalbeforecharging Failure to do so can result in damage to the ECU 1 Charge the battery at 15 amps for 10 minutes DO NOT exceed 20 amps maximum recom mended charging rate Charge until specific gravity is at least 1 250 Total charging time should not exce...

Page 22: ...n and mount with two 2 1 4 20 x 1 2 in bolts Carrier Frame Tube Sockets Attach Guard PTO Shaft Guard Installation Tilt Up Roller Wheel Installation Mount the two 2 tilt up roller wheels on the brackets on the rear skirt of the deck housing using the P N 8490 axle bolt 3 8 in wave spring washer and 3 8 16 in Whiz locknut Tighten the axle bolt until the wheel rolls freely but is not loose Roller Whe...

Page 23: ...s Deck Support Arms Mower Deck Installation 6 Install the lynch pin through the hole on the end of each support arm to lock the deck in place refer to Deck Counterweight Spring Installa tion photo Two 2 lynch pins are included in the owner s packet of materials 7 Remove Installation Tool from coupler ring and make sure the ring has snapped securely on the spline shaft IMPORTANT DO NOT operate trac...

Page 24: ...o 25 Ib 6 8 to 11 3 kg this adjustment is preset at the factory If required the spring ten sion can be adjusted by tightening or loosening the elastic stop nuts lo cated underneath the lower spring hook or contact your local dealer if additional help is required Refer to Deck Coun terweight Spring Installation photo Spring Tension Adjustment Nut Located Under Lower Spring Hook Not Visible Counterw...

Page 25: ... the front to rear level Rotate the cen ter blade to point forward Measure the distance from blade tip to ground on the front and rear The rear of the blade should be 1 8 to 1 4 in 3 to 6 mm higher than the front of the blade remove the chain from the deck height adjuster clevis and adjust equally to achieve at least 1 8 in 3 mm difference Reinstall chains NOTE The mower deck and support frame are...

Page 26: ...ohol DO NOT use premium white or high test gasoline DO NOT use additives such as carburetor 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 hours of continuous operation Refer to LUBRICATION for Checking Engine Crankcase Oil Level in Maintenance Instruction...

Page 27: ...ms on each side 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 locking arms after lowering the deck to the normal operating position Tilt Up Latch Tilt Up Latch Deck Secured in Tilt Up Position caution Do not operate machine with locking arms disengaged DAnger Do not operate the mower with deck in ...

Page 28: ...e key returns to after starting and S is the START position When starting the engine turn the key clockwise to the S position Do not hold the key in the S position longer than 10 seconds If the engine does not start return the key to the O position for at least 60 seconds before mak ingarestartattempt Prolongedcrankingcandamage thestartermotorandshortenbatterylife Releasethe key when the engine st...

Page 29: ...ed Choke Throttle Choke and Throttle Location Body Latch The front portion of the tractor body hinges forward for maintenance access and is latched down in the OPERATING position To raise the body move the latch release forward Body Latch Forward Speed Control FSC ForwardSpeedControl FSC hastwofunctions One is to set forward travel speed and the other is to es tablishtheNEUTRAL PARKposition Whenth...

Page 30: ... positions Pulling the lever FORWARD engages the PTO that drives the mower blades Pulling the lever BACKWARD disengages the PTO and engages the blade brake Parking Brake The parking brake functions by locking a detent arm internally into the transaxle Moving the lever FOR WARD engages the parking brake moving the lever BACKWARD releases the brake IMPORTANT Stop the tractor completely before en gag...

Page 31: ...nates during operation contact an authorized Kohler Service dealer to diag nose the fault IMPORTANT Continuedoperationoftheenginewith an illuminated engine service light will result in sub standard performance and MAY cause engine dam age if not corrected as soon as possible Over Temperature Warning Light The over temperature warning light indicates that en gine oil temperature and or cylinder hea...

Page 32: ...isplaysoperatingtimeaccumulatedwhile the ignition switch is in the ON position Thehourmeterprovidesmaintenanceremindersafter certain hours of operation The hourmeter screen will startflashingthereminderonehourpriortotherecom mended interval and will continue until one hour after the recommended interval two hours The hourme ter does not have a manual reset function Procedure Interval Reminder Oil ...

Page 33: ...ERING LEVER LEFT WHEEL STEERING LEVER CHOKE MBS ONLY PARKING BRAKE THROTTLE OFF Position ON Position The Forward Speed Control also Establishes the Neutral Park Position of the Steering Levers Full Forward Ground Speed Position Intermediate Ground Speed Position Reverse Drive Wheel Motion Position Fast Throttle Position Neutral Park Position Engaged Position Disengaged Position Disengaged Position...

Page 34: ...toRUNposi tionassoonastheenginestarts NOTE For MBS models the choke may not be required if the engine is warm IMPORTANT DO NOT crank the engine con tinuously for more than 10 seconds at a time If the engine does not start turn the key to the OFF position and allow a 60 second cool down period between starting attempts Failure to fol low these guidelines can damage the starter motor and shorten bat...

Page 35: ...OT disconnect the safety switches they are for the operator s protection 2 Steer by pulling the lever on the side of desired direction of turn e g pull the LH lever to turn left To minimize the possibility of overcontrol use only one hand on both steering levers Beginning Recommendations are Learn operation of the mower in an open area away from buildings fences and ob structions Learn operation o...

Page 36: ...rd with the FSC lever in the NEUTRAL PARK posi tion the transmission control needs to be adjust ed Contact your Walker dealer ENGAGING THE MOWER 1 Set the engine throttle at about 1 3 speed Do notattempttoengagethebladeclutchathigh engine speeds This will drastically shorten drive belt life Use only moderate engine speed when engaging the blade clutch 2 Engage the mechanical clutch by pulling the ...

Page 37: ...replaced before operating the mower Contact your Walker dealer 4 Turn the ignition switch OFF WARNING Remove the key from the ignition switch when leaving the mower unattended This will prevent children and inexperienced operators from starting the engine 5 Engage the parking brake Also engaging the parking brake is recommended when stopping or parking the machine in a confined space with little t...

Page 38: ...sition engage the parking brake and disengage the blade clutch PTO Tractor should not be moving while adjusting cutting height Cutting height is adjusted from operators seat using the height pedal to assist in raising the deck while positioning the height adjustment lever and hitch pin 1 Disengage PTO and stop tractor 2 Push down on height pedal until it latches in the full up position 3 Select de...

Page 39: ...mal OPERATING position The transmission rod ends should be com pletely re tracted against the chassis otherwise operation of the transmission maybe erratic Hydro Lockout Rod Hydro Lockout Rod Normal Operating Position RECOMMENDATIONS FOR MOWING DANGER Do not mow around overhanging tree branches or bushes at the same height as the operator s torso and head where inad vertent contact may cause injur...

Page 40: ...the steering levers since the transaxles are power boostedcontrols andjerkingtheleverscaneasilyslip thetires Forsharpturns donotallowtheinsidewheel to stop and twist on grass pull inside steering lever into reverse for a smooth rolling turn one wheel rolling forward while the other rolls back ward ForDSD60models thesidedischargeshieldmust not be removed and must be kept in the lowest pos sible pos...

Page 41: ...The tractor body 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 con siderable force potentially causing deck or tractor damage and or bodily injury When transporting a tractor with the deck in the tilt up position on a truck or trailer the deck should be secured to the vehicle with a strap or rope stop vertical...

Page 42: ...p Spark Plugs x 54 Change Transaxle Oil and Filter xΔΔ 42 Check Fuel Lines and Clamps x 54 Replace Air Filter Element and Dust Ejection Valve x 47 Service Battery x 52 Replace Fuel Filter x 59 Service Solenoid Shift Starter x ΔΔΔ Check PTO U Joints for Wear Looseness x 55 Replace Fuel Lines and Clamps x 54 More often in extremely dusty or dirty conditions Refer to notes about air cleaner element u...

Page 43: ...e engine at full speed when mowing Thisallowstheenginetoproducefullhorsepowerand movemorecoolingairthroughtheenginecool ingfins Air Cleaner System Use only Cummins Fleetguard air cleaner elements Aftermarket elements may not seal in the air cleaner housing allowing dirt to enter the engine Also aftermarket filters often skimp on the filtration media and require more frequent replacement see follow...

Page 44: ...running 2 Before removing the dipstick clean the area around the dipstick to keep any dirt or debris out of the engine 3 Remove the dipstick wipe off with a clean rag then reinsert the dipstick into the tube and tighten 4 Remove the dipstick again and check the oil level on the dipstick The oil level should be within the Operating Range on the dipstick be tween the LOW mark and the FULL mark IMPOR...

Page 45: ...herubbergasketcon tacts the sealing surface then tighten the filter an additional 1 2 to 3 4 turn 8 Reinstall the drain plug 9 Fill the crankcase with new clean oil Use only crankcase lubricants recommended by the engine 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 viscos...

Page 46: ...0 hours Thereafter change oil every 400 hours of operation as follows 1 Thoroughlycleantheexteriorofthetransmis sion housing before servicing Using a 1 4 in hex wrench remove the plug on the lower inside of each transaxle allowing the oil to drain 2 Remove and replace the oil filters using a 3 8 in hex wrench Refer to Transaxle Oil Drain Plug Filter and Guard Location illustration Oil Filter Guard...

Page 47: ... hours of operation Lubricate more often when operating in dusty or dirty conditions Use SAE general purpose lithium or molybdenum base grease for grease fittings and light machine oil SAE 10 to lubricate oil points Lubricate the locations shown in the Chassis and Deck Lubrication Points illus tration NOTE PTO universal joints on the deck and trac tor requireroutinelubrication afterevery8hoursofru...

Page 48: ...bly Grease 1 12 Hydro IdlerArm Pivot Grease 1 13 PTO Belt Tightener Pivot Grease 1 14 ClutchActuator Push Rod Grease 1 15 FSC Lever Pivot Grease 1 16 Body Latch Oil 2 17 PTO Clutch Lever Pivot Grease 1 18 ClutchArm Pivot Grease 1 19 Transaxle Oil Reservoir Oil 2 20 Throttle Control Cable Ends Oil 2 21 Choke Control Cable Ends Oil 2 Model MBS Only 22 Tail Wheel Caster Fork Pivot Grease 2 23 Rear Wh...

Page 49: ...45 Maintenance Instructions LUBRICATION Chassis and Deck Lubrication Points 24 4 5 6 7 30 8 20 29 10 21 28 27 25 22 20 21 23 22 17 19 12 13 11 10 9 8 7 6 5 3 4 16 14 18 16 26 2 1 1 2 15 ...

Page 50: ...y orfrequentservicingoftheaircleanerisnotrequired Use the air restriction gauge on the air cleaner outlet to indicate when the air filter needs servicing a red flag will appear when the filter is overly restricting airflow into the engine IMPORTANT Use only Cummins Fleetguard air filter elements for replacement Walker 2090 1 or 2090 3 Aftermarket filters may not seal properly or filter efficiently...

Page 51: ... recommended Do not try to clean the element with compressed air 4 Useabrightlightinsidetheelementtoinspectfor damage Check the element very carefully for pin holes or other damage that will allow dirt to leak through the paper media Replace element if necessary 5 Without removing visually inspect the condition of the safety filter for damage or holes The safety filter should only be removed for y...

Page 52: ... dry grass leaves tree cotton etc it may be nec essary to check and clean the screen several times each day to prevent engine overheating caution Operating the engine with a blocked air intake screen dirty or plugged cooling fins and or cooling shrouds removed will cause engine damage from overheating Rotating Engine Screen Keep Engine Screen Clean Cylinder Head Cooling Fins It is essential for pe...

Page 53: ...ine Engine Cooling Fin Access Panels Kohler Engine Shroud Engine Air Intake Screen Engine Air Intake Screen and Cooling Fin Access Panels Grass Buildup in Mower Housing DAnger Before raising or removing the mower deck for cleaning stop the engine remove the ignition key and disconnect the spark plug wires 1 Release hood latch assembly 2 and remove footrest 2 Rotate locking arms upward on each side...

Page 54: ...f material buildup in the mower deck housing can be tolerated a point is finally reached where cutting quality deterio ratesandcloggingbeginstooccurbecauseof too much buildup on the baffling and housing DAnger Do not operate the mower with deck in tilt up position Do not move the tractor with the deck in the tilt up position 6 Lower the deck to the normal operating position and rotate locking arms...

Page 55: ...ransaxle housings This may be the result of an oil leak If an oil leak is noticed contact your local Walker dealer Cooling Fins Transaxle Cooling Fins IMPORTANT In case an oil leak develops on the input shaft the cooling fan blowing dusty air and oil on the transmission will quickly pack the cooling fins with oily dirt If this condition occurs contact your dealer immediately to avoid overheating a...

Page 56: ...ine A hazard may be created by damage to critical working parts and safety systems CAUTION Important Battery Service Installation and Changing Tips for MBS26 Do not allow the battery cables to touch opposing terminals When connecting bat tery cables attach the positive cable to positive battery terminal first followed by negative cable to negative battery terminal Never start the engine when the c...

Page 57: ...PSI 103 kPa Rear 20 PSI 137 kPa Wheel Nuts Torque Check every 100 hours the eight 8 Drive Tire mounting nuts They should each be torqued to 75 to 85 ft lbs 101 7 to 115 2 N m Sharpen Mower Blades Check mower blade s for straightness sharp ness condition of the cutting edge and balance every 10 hours of operation or more often when mowing abrasive type grass or operating on sandy soils Replace blad...

Page 58: ...ening Blade Balancer Blade Balanced on Magnetic Wall Mounted Balancer 7 Mount the blade with wing tips pointing up into the housing Reinstall the blade washer and bolt Tighten the bolt to 64 ft lb 86 8 N m Drive Belts Raise the body and inspect the condition of the four 4 drive belts after every 25 hours of operation engine PTO drive and ground drive If the belts show signsofcrackingordeterioratin...

Page 59: ...f any of the following conditions occur during starting or operating a safety interlock switch may be mal functioning Contact your Walker dealer for trouble shooting and or replacement With an operator in the seat the engine starts with the Forward Speed Control FSC and or the PTO engaged With an operator in the seat the engine starts but dies soon after the Forward Speed Control FSC or PTO is eng...

Page 60: ...s IMPORTANT ALWAYS use genuine factory re placementparts SubstitutepartsCANresultinprod uct malfunction and possible injury to the oper ator and or others Drive Belts There are four 4 individual belts on the machine Engine PTO Belt Matched Set 3 Ground Drive Belt The belts may be removed and replaced using the procedures described on the following pages Ground Drive Belt Engine PTO Belt Matched Se...

Page 61: ...Engine Hidden for Clarity 2 To replace the engine PTO belt a Reverse the removal procedure to replace the engine belt b Secure wire on lock pin above tab on lower PTO guard Engine PTO Belt Belt Guards Closed Engine Hidden for Clarity Right Hand Guard Upper LH Guard Lower LH Guard Secure wire above tab PTO Guard PTO Guard Right Hand Guard PTO Pulley Upper LH Guard Lower LH Guard Wire Lock Pin Wire ...

Page 62: ...then release the idler Ground Drive Belt Assembly Disengaged 2 Reverse the procedure to install the ground drive belt Ground Drive Belt Assembly Engaged Tension Spring Ground Drive Belt Raise Idler Pulley to Relax Belt Hydro Idler Arm RH Transaxle Idler Pulley Drive Pulley LH Transaxle Ground Drive Belt RH Transaxle Idler Pulley Hydro Idler Arm Drive Pulley LH Transaxle ...

Page 63: ...ntainer for gasoline DO NOT allow open flames or sparks near the machine while performing main tenance or refueling DO NOT smoke while working with fuel Wipe up spilled gasoline immediately and completely 1 Expand and slide clamps on either side of the filter away from filter and pull fuel lines off filter 2 Replace filter Mower Blades Mower blades are removed and remounted as de scribed in the Sh...

Page 64: ... blades offered byothermanufacturerscannotbeguar anteed they could be dangerous cAution ALWAYSusegenuinefactoryreplacement parts Substitute parts CAN result in prod uct malfunction and possible injury to the operator ADJUSTMENTS Transmission Control IMPORTANT Theproperadjustmentofthetran saxle control stops is essential for efficient operation and lifeofthetransaxle Thesestopsareproperlyad justed ...

Page 65: ...es can be adjusted forward or aft depending on the arm length of the operator The handles can be adjusted by loosening the locknut at the pivot point and the locknut holding the handle in position in the adjustment slide Adjust the handles into the most comfortable position and tighten both locknuts Adjustment Slide Locknut Position Locknut Pivot Point Steering Lever Adjustment Neutral Position Ad...

Page 66: ...C in the NEUTRAL position and the en gine running the wheels should not move If adrivetireismoving theControlRodonthatside is out of adjustment Adjust that side to achieve neutral Now both transaxles are in the neutral window Control Rods Neutral Window Front Body Hidden for Clarity 6 OneatatimeadjusttheleftandrightControlRods to find the center of the neutral window Shorten the rods until the dri...

Page 67: ...racking and neutral can not be achieved turn the control rod back to where neutral can be achieved 4 Lengthenthecontrolrodofthefasterside adjust in 1 8 turn increments to match the slower side while maintaining the neutral position 5 If the forward travel is straight throughout the speed range except at maximum speed place the FSC in full FORWARD turn the set screw in the Transmission ControlArm o...

Page 68: ...ed 2 Withthesteeringleversheldback movetheFSC lever back from the FORWARD position With a proper amount of friction adjusted the FSC le ver should move back with a slight amount of re sistance friction If the FSC lever movement is stiff the friction needs to be decreased 3 The FSC friction is increased or decreased by tightening or loosening the friction adjust ment nut Loosen or tighten the nut a...

Page 69: ...od to achieve a bolt head clearance of 1 4 in to 5 16 in 6 35 mm to 7 94 mm with the clutch engaged To adjust length remove ball joint from clutch arm shorten the clutch rod to decrease this measurement or lengthen the clutch rod to increase this measurement If adjust ments are needed more frequently than every 100 hours to maintain dimensions it may suggest prob lems with pulley wear or belt misa...

Page 70: ...isengaged Use the following procedures to check and adjust clutch disengagement and brake action Idler Pulley Maximum Travel Adjustment Step 1 Loosen the brake band adjustment nut allowing stop arm and stop nut to make contact refer to Blade Brake Band Adjustment illustration 1 Adjustthepivotstopbolttogive1 5 8in to1 3 4in 41 mm to 44 mm pulley travel from clutch en gaged to clutch disengaged 2 Ch...

Page 71: ...NGAGED CLUTCH ENGAGED 5 8 in to 3 4 in 16 mm to 19 mm Clutch Idler Pulley Travel Adjustment Blade Brake Band Blade Brake Band Adjustment Nut Chassis Mount Ref Blade Brake Band Adjustment 2 After adjustments are complete check blade brake action as described in CHECKING SER VICING the Blade Brake Action in this section If blades do not stop within five 5 seconds check the following a Make sure clut...

Page 72: ...r Bracket 1 14 5808 Danger Rotating Blades Deck Housing one on each end 2 15 8647 Danger Tilt Up Carrier Frame 1 16 8653 1 Transport Warning Deck Housing 1 17 8653 Caution Pivot Joint Carrier Frame 2 18 2749 2 Decal Drive Belt Routing DSD60 Deck Housing 1 2749 1 Decal Drive Belt Routing DRD52 Deck Housing 1 19 5848 Danger Side Discharge Shield DSD60 Side Discharge Shield 1 Maintenance Decals 20 21...

Page 73: ... 26 14 8 19 14 1 2 27 BELT ROUTIN G DRIV E BELT WAL KER P N 2731 CAR LISLE P N R3VX 1250 2 BELT TWIS T DRIV E PULL EY WAL KER P N 2240 1 BELT TWIS T 274 9 BLAD E PULL EY WAL KER P N 2240 9 2 13 RO TAT E KN OB CW UN TIL PLA Y IS REM OV ED PLU S ON E AD DIT IO NA L TU RN CH EC K EV ERY 8 HO UR S OF US AG E TRACTOR AND DECK DECALS ...

Page 74: ...heelAxle 3 4 x 5 9 16 2 Deck Support Arm Hitch Assemblies 42 2300 9 DeckArm Support Mount 1 43 6840 1 SupportArm Bushing 2 1 16 2 44 2775 Lynch Pin 5 16 x 1 1 4 2 45 2431 Deck SupportArm LH Includes Item 24 1 46 2430 Deck SupportArm RH 1 Includes Item 24 Deck Arm Adapter Kit 47 2431 1 DeckArmAdapter LH Includes Item 24 1 48 5775 2 Hitch Pin 6 2 49 2430 1 DeckArmAdapter RH Includes Item 24 1 50 274...

Page 75: ...11 7 9 8 3 20 F009 F034 F031 42 F446 43 24 45 F430 F430 44 44 24 24 24 46 43 F446 F034 F009 22 F034 F442 F246 5 5 6 4 23 F009 Refer to Main Component Power Transmission F009 F009 F009 21 F002 F025 F004 F348 F347 30 F344 31 32 32 31 33 F219 F219 F218 F218 34 39 F034 F013 24 24 28 F151 19 26 25 26 25 29 F256 F219 F218 27 18 17 F009 F205 35 37 38 38 40 36 41 49 48 47 50 48 52 51 2 F246 F050 F004 F009...

Page 76: ...ng 2 45 7201 9 Inner Race 1 46 2359 2 Clutch Engagement 1 Includes Items 3 44 47 2349 6 Flanged Bearing Includes Item 6 1 48 4302 2 Shoe Mount 1 49 7377 Plastic Washer 1 x 438 x 025 2 50 7378 Pivot Bearing 7 16 x 9 16 1 51 5214 2 Ball Joint 5 16 24 Nylon Lined 1 52 7226 Compression Spring 3 4 x 2 1 2 1 53 7380 Knuckle Joint 1 Fasteners F004 1 4 20 Keps Nut 5 F008 5 16 24 Keps Nut 1 F009 5 16 18 Wh...

Page 77: ...3 38 42 3 5 53 3 49 49 50 52 51 F060 F061 F010 F473 F060 6 F049 F024 F024 9 5 7 8 10 12 11 F009 13 F298 F241 10 48 47 18 17 14 14 15 16 32 1 F435 F450 F452 F034 F035 F171 F255 29 F009 F350 F431 F120 F120 F009 F009 20 23 22 21 21 22 26 25 24 Refer to Body ChassisAssembly Refer to Engine Group Model MBS26 or MBS 27 28 30 14 F104 F120 F350 F350 F031 F031 F120 F120 F120 F004 F350 F182 F350 33 F069 36 ...

Page 78: ...34 2013 4 Shield Side 2 35 2013 3 Muffler Heat Shield 1 Precleaner Assembly 36 7840 Hose Clamp 1 5 16 to 2 1 4 2 37 2012 1 Air Intake Hose 1 38 2088 10 Air CleanerAssembly Includes Items 38 43 39 5091 4 Air Flow Indicator 1 40 2088 1 Air Cleaner Band 1 41 2090 3 Safety Filter Insert 1 42 2090 1 Air Cleaner Cartridge 1 43 2088 2 Air Cleaner Cap 1 44 2090 2 Vacuator Valve 1 Choke and Throttle Assemb...

Page 79: ...F184 F185 1 3 2 7 4 4 9 10 28 29 30 31 F009 F031 F004 32 33 32 F002 F002 34 35 F025 F025 34 26 27 F439 F175 Refer to Body Chassis Assembly To Engine F004 11 11 6 F002 F026 F002 F002 F002 F002 F026 F026 45 11 36 37 36 38 39 40 F034 F009 Refer to Hydrostatic Ground DriveAssemblies 41 42 18 23 13 14 12 13 14 15 5 24 43 44 14 8 5 5 5 5 5 5 5 22 5 5 5 21 20 20 5 5 5 25 5 16 19 5 17 5 Refer to Electrica...

Page 80: ... Cleaner Band 1 30 2090 3 Safety Filter Insert 1 31 2090 1 Air Cleaner Cartridge 1 32 2088 2 Air Cleaner Cap 1 33 2090 2 Vacuator Valve 1 Choke and Throttle Assemblies 34 2109 4 Control Cable 62 1 35 2108 4 Control Cable 68 1 36 8123 Insulating Sleeve 3 8 x 6 1 37 5108 1 Control Lever Throttle Choke 2 38 5108 5 Throttle Control Knob Red 1 39 5108 11 Friction Washer 062 2 40 5108 6 Choke Control Kn...

Page 81: ... 34 42 15 37 39 F185 F184 F184 F185 1 3 2 4 5 6 7 F185 F184 F184 F185 1 3 2 4 5 6 7 18 19 20 F009 21 22 21 F002 F002 23 24 F025 F025 23 To Engine 25 26 25 F439 F175 Refer to Body Chassis Assembly 27 28 29 30 31 32 33 F034 F009 Refer to Hydrostatic Ground DriveAssemblies F004 F002 F026 16 15 15 14 13 12 8 8 8 9 11 8 F031 8 8 8 10 17 17 F002 F026 36 ...

Page 82: ...g 1 1 41 2350 13 3 18 16 x 1 3 4 Bolt Grade 5 8 42 2350 1 Hub Coupler End 4 43 2350 15 Spacer Bushing 16 44 2350 16 Flex Plate 16 45 2350 12 Coupling Shaft 1 46 5221 1 Extension Spring 3 4 x 5 1 47 4245 Idler Pulley 3 A 1 48 5841 Retainer Washer 3 8 x 1 1 4 1 49 2349 1 Hydro IdlerArm Includes Items 50 52 1 50 5830 3 Grease Fitting 45 Deg 1 51 7201 5 Inner Race 2 1 4 1 52 7201 3 Fiberglide Bearing ...

Page 83: ...009 3 16 16 10 10 4 3 F009 15 F009 1 F009 F034 17 18 F003 F010 19 20 F003 F010 17 18 F010 F182 F182 F010 19 20 37 36 F388 54 38 F169 39 F182 10 40 F182 10 F013 F004 52 51 49 46 F211 F043 F054 47 F012 F241 F040 F051 F013 56 57 53 F388 58 58 F015 F009 55 F434 48 F013 50 11 45 41 F014 F014 F014 F014 42 43 43 43 44 44 43 42 42 42 41 F054 F171 F171 F171 F171 F054 F350 Refer to Engine Group Model MBS26 ...

Page 84: ... Spring 1 2 x 3 1 4 2 30 4452 6 Steering Pivot 1 4 20 x 1 5 8 2 31 4142 1 FSC Cam 1 32 5141 FSC Friction Washer 1 1 1 2 x 3 8 x 1 16 33 4142 2 FSC Friction Washer 1 1 1 2 x 1 1 32 x 1 16 34 9704 3 Pivot Rod Bushing Plastic 2 35 2451 4 Steering Shaft Spacer 1 Transmission Spring Assemblies 36 4199 Transmission SpringAssembly Includes Items 37 43 F004 F211 F320 F352 37 4552 Ball Joint 1 4 28 2 38 51...

Page 85: ...8 30 F005 27 29 F003 F352 F320 F004 38 37 39 40 41 42 43 F211 15 11 10 12 F044 F049 F146 F391 F024 F008 13 14 F146 F391 F024 F008 11 10 13 F044 18 8 F373 9 F008 F004 F209 36 F211 16 F009 19 19 F009 F009 20 20 F211 36 F009 22 F004 Refer to Hydrostatic Ground DriveAssemblies F004 F004 F192 31 F407 32 33 34 34 F121 35 F211 Refer to Body Chassis Assembly Refer to Hydrostatic Ground DriveAssemblies 17 ...

Page 86: ...1 2 Safety Switch 1 19 7833 2 Cable Clamp 1 x 1 4 2 20 7938 Lead Wire Battery Charge 1 Alternator to Starter 21 2940 3 Battery Cable 14 2 22 8012 6 RegulatorAdapter Harness 1 23 7910 Battery 12V 340CCA Dry 1 24 5975 1 Cable Tie 18 x 3 3 4 2 25 5933 Battery Terminal Insl Red 1 26 5932 Battery Terminal Insl Blk 1 27 5844 Battery Hold Down Bar 1 28 2910 1 Battery Shield 1 29 5839 Hook Bolt 2 30 8941 ...

Page 87: ...002 F002 BLK RED WHT F232 F026 F019 F050 27 29 25 24 24 26 F031 F050 F004 23 21 39 F002 17 38 F002 F002 7 8 F026 BRN YEL BRN YEL DETAILK DETAILJ PUR RED PUR RED GRN BRN GRA PUR RED GRA DETAILA BLK PUR PUR RED DETAILC 18 F026 F026 PUR RED PUR RED PUR RED PUR RED BLU GRA GRA PUR RED PUR RED BRN BLK WHT WHT WHT RED GRN BRN WHT YEL GRN PUR GRN BLU BLK BRN BLK DETAILO BLK BRN BLK DETAILP 1 1 2 3 F349 1...

Page 88: ...e Delay Module Less Harness 1 15 7948 5 Time Delay Harness 1 16 5941 2 Safety Switch 1 17 7833 2 Cable Clamp 1 x 1 4 2 18 7938 Lead Wire Battery Charge 1 Alternator to Starter 19 2940 3 Battery Cable 14 2 20 7910 Battery 12V 340CCA Dry 1 21 5975 1 Cable Tie 18 x 3 3 4 2 22 5933 Battery Terminal Insl Red 1 23 5932 Battery Terminal Insl Blk 1 24 5844 Battery Hold Down Bar 1 25 2910 1 Battery Shield ...

Page 89: ... to Body Chassis Assembly 11 1 4 5 6 7 10 13 13 F002 F026 14 12 F026 F026 F002 F002 28 17 17 19 18 27 F009 F232 F002 F002 F034 F026 F019 F050 24 26 22 21 21 23 F031 F050 F004 20 19 30 F002 15 29 F002 F002 7 F026 BRN YEL BRN YEL DETAILI DETAILH PUR RED PUR RED GRN BRN GRA PUR RED GRA DETAILA BLK PUR PUR RED DETAILC 16 F026 F026 PUR RED PUR RED PUR RED PUR RED BLU GRA GRA PUR RED PUR RED BRN BLK WHT...

Page 90: ...re 13 x 5 00 6 2 W Bearing Race 32 8768 2 Seal Reverse Lip 2 33 8038 1 Spacer Tail WheelAxle 2 750 x ID x 1 125 OD 34 8039 Nut Tail WheelAxle 2 Deck Lift Components 35 2722 1 Deck HeightAdjustment LH 1 Includes Item 8 36 2214 10 Rod End Female 3 8 24 4 37 2722 3 Pivot Shaft 2 38 2655 Lift Chain 4 39 4407 4 Bow Tie Cotter Pin 2 40 2215 4 HeightAdjustment Rod 2 41 5146 10mm Ball Stud 4 42 2215 Gas S...

Page 91: ...3 F004 F241 F241 F241 36 F226 22 8 21 20 19 F263 F009 F009 F009 F009 15 16 17 16 14 F035 F438 13 F132 F050 46 45 44 F071 F071 40 F009 F226 F378 F241 F298 36 F013 41 F009 F009 F038 F241 F013 38 F348 F347 23 F344 24 25 F004 8 15 25 24 26 F219 F219 F218 F218 27 F205 34 32 30 31 30 29 33 28 42 F268 41 F298 F013 F241 47 8 37 42 41 8 F039 F436 F009 F436 F241 F038 38 43 F013 F241 F241 38 F040 F241 F241 4...

Page 92: ...Assembly Spline 1 Includes Item F318 41 4245 1 Idler Pulley 4 Flat 1 42 2240 Blade Drive Pulley 3 1 2 3 43 8245 Idler Pulley 6 2 44 2350 5 Washer 3 8 16 Tap 1 4 Thk 1 45 2731 Blade Drive Belt R3VX1250 1 46 5841 Retainer Washer 3 8 x 1 1 4 1 47 2245 1 Idler Pulley 1 2245 5 Idler PulleyAssembly Includes Items 37 38 47 F445 48 5830 Grease Fitting 4 49 2724 6 Belt Tensioner Clevis 1 50 8655 4 Clevis P...

Page 93: ...014 F014 F059 F039 1 F025 10 F029 12 5 28 F012 42 43 F013 43 36 38 37 F034 F013 39 F075 F445 F276 F458 F045 41 42 F059 F013 9 1 F025 F059 F013 9 5 10 12 13 F009 F002 F009 F009 F004 F002 F009 20 16 17 18 17 F478 F009 F029 F029 F004 19 21 16 17 17 18 F478 F009 F039 F013 56 F048 F265 57 F048 F265 F004 F039 F405 56 57 F013 F039 F013 56 F048 F265 57 33 47 F041 F051 42 46 45 F206 15 Secure to Vehicle Ac...

Page 94: ...re 13 x 5 00 6 2 W Bearing Race 32 8768 2 Seal Reverse Lip 2 33 8038 1 Spacer Tail WheelAxle 2 750 x ID x 1 125 OD 34 8039 Nut Tail WheelAxle 2 Deck Lift Components 35 2722 5 Deck HeightAdjustment LH 1 Includes Item 8 36 2214 10 Rod End Female 3 8 24 4 37 2722 4 Pivot Shaft 2 38 2655 Lift Chain 4 39 4407 4 Bow Tie Cotter Pin 2 40 2215 4 HeightAdjustment Rod 2 41 5146 10mm Ball Stud 4 42 2215 Gas S...

Page 95: ...3 F004 F241 F241 36 F226 22 8 21 20 19 F263 F009 F009 F009 F009 15 16 17 16 14 F035 F438 13 F050 46 45 44 F071 F071 40 F009 F226 F378 F241 F298 36 F013 41 F009 F009 F038 F241 F013 38 F348 F347 23 F344 24 25 F004 8 15 25 24 26 F219 F219 F218 F218 27 F205 34 32 30 31 30 29 33 28 42 F268 41 F298 F013 F241 47 8 37 42 41 8 F039 F436 F009 F436 F241 F038 38 43 F013 F241 F241 38 F040 F241 F241 43 F013 F01...

Page 96: ...pline 1 Includes Item F318 34 4245 1 Idler Pulley 4 Flat 1 35 2240 3 Blade Drive Pulley 3 1 8 3 36 8245 Idler Pulley 6 2 37 2350 5 Washer 3 8 16 Tap 1 4 Thk 1 38 2731 2 Blade Drive Belt 1150L4 K 1 39 5841 Retainer Washer 3 8 x 1 1 4 1 40 2245 2 Idler Pulley 1 41 2724 6 Belt Tensioner Clevis 1 42 8655 4 Clevis Pin 5 16 x 3 4 1 43 4407 4 Bow Tie Cotter Pin 1 44 5830 Grease Fitting 4 45 7201 3 Fiberg...

Page 97: ...41 F276 F045 F075 F435 28 27 33 F034 44 F043 F013 45 46 45 F276 F458 F458 F045 5 5 F025 10 F029 12 8 21 F012 35 36 37 F013 36 29 31 30 F034 F013 32 F075 F445 F051 F051 F041 F013 F276 F458 F045 34 35 F059 F013 9 F025 F059 F013 9 8 10 12 13 F009 F002 F009 F009 F009 F004 F002 F013 49 44 50 49 44 49 44 50 50 F013 26 40 F041 F051 35 39 38 18 Secure to Vehicle According to 8653 1 Transport Warning Decal...

Page 98: ...replacement parts Effective Date 09 15 10 94 MULCHING KIT Mulching Kit 1 7705 16 Blade 21 Low Lift 3 2 2691 7 Left Hand Baffle 1 3 2691 6 Center Baffle 1 4 2691 8 Right Hand Baffle 1 Fasteners F004 1 4 20 Keps Nut 13 F029 1 4 20 x 1 2 Hex Bolt 13 F048 1 2 SAE Washer 3 F265 1 2 20 x 1 1 2 Hex Bolt 3 ...

Page 99: ...e Date 09 15 10 Use only genuine Walker replacement parts 95 MULCHING KIT F004 F004 F004 F029 F029 1 1 F029 F029 F004 F004 F029 1 F048 F265 F048 F265 F048 F265 F029 F004 F004 F004 F004 2 3 4 F029 F029 F029 F029 ...

Page 100: ...J3 TO J20 TO J20 TO J20 TO J3 J4 TO J4 TO J8 BLK WHT BLK BLK RED ORG RED BLK WHT PUR GRA BLK BLK WHT ORG BLU YEL YEL TO J5 BRN BRN TO J11 BLK BLK TO J8 BLK BLK TAN TAN WHT TO J2 PNK PNK GRN BLU GRN TO J10 GRN GRN RED YEL RED YEL RED YEL RED 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 RED RED BLU PUR GRA 32 J18 J21 J17 ...

Page 101: ...87A 85 86 30 85 87 85 87A STARTER STARTER SOLENOID OIL TEMP SWITCH REGULATOR OIL PRESSURE SWITCH CYLINDER HEAD TEMP SWITCH BLK RED PUR GRN GRN BLU BLK BLK BLK BLK BLK BRN PUR RED BLK BLK BLK 87A 30 85 86 87 30 87A 85 86 WALKER MODEL MBS26 Beginning S N 2009 102141 S1 START CIRCUIT S2 START ACCESSORY CIRCUIT M MAGNETO GROUND CIRCUIT B BATTERY CIRCUIT A ACCESSORY CIRCUIT G GROUND CIRCUIT RUN RELAY A...

Page 102: ... 87 30 87 30 87A 30 87A RUN RELAY C IGNITION RELAY OFF START PTO ON 30 87 30 87 30 87A 30 87A 30 AMP BREAKER CIRCUIT HORN OVER TEMP LIGHT PRESSURE OIL LIGHT MODULE TIME DELAY RED RED RED RED PUR PUR PUR ORG YEL GRN GRN GRN BLK BLK RED RED GRA FSC NEUTRAL INTERLOCK SWITCH ORG BRN BRN BRN GRN BLU GRN PUR RED PUR RED PUR RED PUR RED PUR RED PUR RED BLU BLK BLK BLK PUR RED SEAT SWITCH PTO SWITCH YEL G...

Page 103: ... shall pay any charges for making service calls and or for transporting the mower to and from the place where the inspection and or warranty work is performed 3 HOW TO OBTAIN SERVICE UNDER THIS WARRANTY Warranty service can be arranged by contacting the dealer where you purchased the mower or by contacting Walker Man ufacturing Company 5925 East Harmony Road Ft Collins CO 80528 Proof of the date o...

Page 104: ...al Condition Clear Temperature 90 F o 32 C o Wind Speed 5 mph 8 kmh Humidity 20 Barometric Pressure 83 8 kPA Lwa 100 Vibration Model MBS Vibration Level Vibration levels at the operators handles were measured in the vertical lateral and longitudinal directions using calibrated vibration test equipment Tests were performed on 6 July 07 under the conditions listed 0 2g General Condition Clear Temper...

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