Walker Walker Mowers Operator'S Manual Download Page 4

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Table of Contents

CLEANING

____________________________ 48

Engine Air Cleaner System

_____________ 48

Turbine Precleaner

___________________ 48

Cummins/Fleetguard OptiAir™ Air Cleaner

Engine Cooling System

________________ 50

Cooling Air Intake System

______________ 50

Cylinder Head Cooling Fins

____________ 50

Grass Buildup in Mower Deck Housing

___ 51

Transaxle Housing

____________________ 53

CHECKING/SERVICING

__________________ 54

Security of Air Filtration Components

____ 54

Battery

______________________________ 54

Electrolyte Level

_____________________ 54

Cleaning the Terminals

________________ 55

Charging the Battery

__________________ 55

Tire Pressure

_________________________ 55

Wheel Nut Torque

_____________________ 55

Sharpen Mower Blades

________________ 55

Drive Belts

___________________________ 56

Spark Plugs

__________________________ 56

Ignition Wires

________________________ 56

Fuel Lines and Clamps

_________________ 57

PTO U-Joints

_________________________ 57

Blade Brake Action

____________________ 57

Safety Switch System

__________________ 57

Forward Speed Control Friction Lock

_____ 57

REPLACING/REPAIRING

_________________ 58

Drive Belts

___________________________ 58

Engine/PTO Belt

_____________________ 59

Ground Drive Belt

____________________ 60

Fuel Filter

___________________________ 61

Mower Blades

________________________ 61

Replacing Deck Drive Belt

______________ 63

ADJUSTMENTS

________________________ 64

Transmission Control

__________________ 64

Steering Lever Position Adjustment

______ 64

Steering Handles Adjustment

___________ 64

Neutral Position Adjustment

____________ 65

Full Forward Speed Adjustment

_________ 66

Straight Tracking Adjustment

___________ 66

FSC Neutral Switch Adjustment

_________ 67

Forward Speed Control
Friction Adjustment

___________________ 67

Blade Clutch (PTO)

____________________ 68

Clutch Engagement/Belt Tension

________ 68

Clutch Disengagement/Brake Action

_____ 69

Idler Pulley Maximum Travel Adjustment

__ 69

Blade Brake Band Adjustment

__________ 70

Warranty

___________________________ 71

Summary of Contents for Walker Mowers

Page 1: ...ly Operating and Maintenance Instructions Model MBS29 Please Read and Save These Instructions Beginning S N 125598 For Safety Read All Safety and Operation Effective Date 01 09 12 Instructions Prior t...

Page 2: ...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 ope...

Page 3: ...3 PREOPERATING CHECKLIST______________ 24 Operating Instructions______________ 26 CONTROL IDENTIFICATION LOCATION AND FUNCTION ______________ 26 Ignition Switch________________________ 26 Engine Throt...

Page 4: ...________ 57 PTO U Joints__________________________ 57 Blade Brake Action_____________________ 57 Safety Switch System__________________ 57 Forward Speed Control Friction Lock______ 57 REPLACING REPAIR...

Page 5: ...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 REAR DISCHARGE RD discharges mowed m...

Page 6: ...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 m...

Page 7: ...Air Cooled Air Cleaner Remote mounted Cummins Fleetguard OptiAirTM Walker P N 2090 1 Primary 2090 3 Safety Filter ELECTRICAL SYSTEM Battery 12 Volt 340 CCA Charging System Flywheel Alternator Charging...

Page 8: ...ach Blade 3 Mounts Directly on Belt Driven Spindles Blade Drive Clutch and Brake Manual Belt Tightener Clutch and Band Brake Stops Blades within Five 5 Seconds of Disengagement TIRE SIZE Deck Caster W...

Page 9: ...ge Cutting Width in cm 52 132 60 152 Cutting Height in cm 1 to 5 3 to 13 Height Adjustment in cm 1 4 1 Increments 17 Positions Blade Length in cm 18 4 47 20 5 52 Number of Blades 3 Direction of Rotati...

Page 10: ...heels Tilt Bar Deck Handle Footrests Counterweight Springs and Protective Covers Tilt Up Latch Forward Speed Control FSC Friction Adjustment Deck Height Lift Chain Tilt Up Hook Not Visible Deck Height...

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

Page 12: ...king Brake Fuel Pickup Line Fuel Tank RH Transmission Control Arm Air Filter Cover Cummins Fleetguard OptiAir Air Cleaner PTO Clutch Lever Oil Cooler Oxygen Sensor Steering Levers Dampeners Rubber Bum...

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

Page 14: ...peed 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 the seat switch to avoid engine power interruption when d...

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

Page 16: ...s a Do not move tractor with deck in tilt up position b Never tilt body forward with deck in tilt up position 18 In case of a clogged or plugged mower deck a Disengage the blade clutch PTO set the par...

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

Page 18: ...ng carbon monoxide CO poisoning hazard CO emitted by a running engine can be deadly Do not operate indoors or in other enclosed areas Location Rear Body Near Muffler Part Number 8600 5 8600 5 1 1 Warn...

Page 19: ...l Tank Part Number 2010 4 5848 2 1 Location Deck Discharge Shield DSD60 Part Number 5848 2 1 Warning thrown object hazard Always keep the discharge shield in the low est position when operating Do not...

Page 20: ...ment and cutting dismem berment hazards Keep away from rotating shafts belts and other components Location Right Fender Part Number 2802 2 Location Underside of Rear Body Part Number 2107 4 1 2 1 Grou...

Page 21: ...Left Fender Part Number 2802 3 Location Front Body Adjacent to RH Steering Lever Part Number 2807 2 1 Low Engine Oil Pressure Warning Light 2 High Oil Cylinder Head Temperature Light 3 Service Engine...

Page 22: ...the battery for electrolyte level and charge The electro lyte level should be at the bottom of the vent wells 1 4 to 1 2 in 6 to 13 mm above plates If the spe cific gravity is less than 1 225 the batt...

Page 23: ...PRODUCE EXPLOSIVE GASES Charge the battery in a well ventilated area so that gases produced while charg ing can dissipate Keep sparks flames and smoking mate rials away from the battery at all times...

Page 24: ...ector shield attached and in the lowest possible position Attach Shield Deck Discharge Shield Installation PTO Shaft Guard Installation Position the shaft guard as shown and mount with two 2 1 4 20 x...

Page 25: ...rInstal lation Tool provided in Owner s Packet as shown in the photo below NOTE The Coupler Installation Tool is provided for convenience but is not required for installa tion Retract Coupler Ring Cou...

Page 26: ...stead of lifting the front ofdeck andclipthecounterweightspringstothe receptacle on front of body Lower the body to tension the springs Refer to Deck Counter weight Spring Installation photo 7 With th...

Page 27: ...point forward Measure the distance frombladetiptogroundonthefrontandrear The rear of the blade should be 1 16 to 1 8 in 2 to 3 mm higher than the front of the blade remove the chain from the deck heig...

Page 28: ...mium 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 C...

Page 29: ...ause it is hazardous The tilt up deck can be secured in the raised position by disengaging the locking arms on each side of the carrier frame and inserting the deck hook into the tilt up latch on the...

Page 30: ...he 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 engin...

Page 31: ...ed Control FSC has two functions One is to set forward travel speed and the other is to establish the NEUTRAL PARK position When the FSC lever is moved into the FORWARD position a friction lock holds...

Page 32: ...lever has two 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 brak...

Page 33: ...the engine performance When this light illuminates during operation contact an authorized Kohler Ser vice dealer to diagnose the fault IMPORTANT Continued operation of the engine with an illuminated e...

Page 34: ...erating time accumulated while the ignition switch is in the ON position The hourmeter provides maintenance reminders af ter certain hours of operation The hourmeter screen will start flashing the rem...

Page 35: ...osition RIGHT WHEEL STEERING LEVER LEFT WHEEL STEERING LEVER PARKING BRAKE THROTTLE The Forward Speed Control also Establishes the Neutral Park Position of the Steering Levers Full Forward Ground Spee...

Page 36: ...connect safety switches they are for the operator s protection 2 Move the throttle 1 4 to 1 2 open toward FAST Turn the ignition switch to the START position to start the engine Release the key to RUN...

Page 37: ...operating the mower DO NOT 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 le...

Page 38: ...both steering le vers backward to the NEUTRAL PARK position tractor not moving and then moving the FSC lever to the NEUTRAL PARK position NOTE If the tractor creeps forward or back ward with the FSC l...

Page 39: ...brake stops the cutter blades from free wheeling within five 5 seconds after dis engaging the clutch If the brake system malfunctions and the blades do not stop within five 5 seconds the brake should...

Page 40: ...or Valve ADJUSTING CUTTING HEIGHT WARNING Never adjust cutting height while the mowerismoving Beforeadjustingcutting height or servicing move the Forward Speed Control FSC into the NEUTRAL PARK positi...

Page 41: ...ing both rods in the chassis notch area 3 The mower will freewheel with the rods in the LOCKOUT position The levers must be in the highest position to completely unlock the trans missions Hydro Lockou...

Page 42: ...ttern for best appearance and vary the direction of the stripe each time the grass is mowed to avoid wear patterns in the grass Avoid damage to the grass by slipping and skid ding of the drive tires U...

Page 43: ...parked 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...

Page 44: ...of Turbine Precleaner Fan x 48 Change Engine Oil Filter x 42 Check Regap Spark Plugs x 56 Replace Fuel Filter x 61 Change Transaxle Oil and Filter x 44 Check Fuel Lines and Clamps x 57 Replace Air Fil...

Page 45: ...muffler and moving parts when checking 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 fin...

Page 46: ...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 an...

Page 47: ...tcon tacts the sealing surface then tighten the filter an additional 1 2 to 3 4 turn 8 Close the oil drain valve and tighten until snug Do not overtighten 9 Fill the crankcase with new clean oil Use o...

Page 48: ...f 75 100 hours Thereafter change oil every 400 hours of operation as follows 1 Thoroughlycleantheexteriorofthetransmission housing before servicing Remove expansion tank cap to allow venting Using a 1...

Page 49: ...il level and add if needed Repeat procedure until transaxle operates at normal noise levels and move smoothly in forward and reverse Grease Fitting and Oil Point Lubrication Lubricate the grease fitti...

Page 50: ...IdlerArm Pivot Grease 1 13 ClutchActuator Push Rod Grease 1 14 Body Latch Pivot Oil 2 15 PTO Clutch Lever Pivot Grease 1 16 ClutchArm Pivot Grease 1 17 Transaxle Oil Reservoir Oil 2 18 Throttle Contro...

Page 51: ...47 Maintenance Instructions LUBRICATION Chassis and Deck Lubrication Points 11 2 1 1 2 3 4 5 6 27 7 18 26 9 25 14 20 18 21 22 20 15 17 10 9 8 7 6 5 4 3 14 16 28 23 17 12 24 19 13...

Page 52: ...ent while shining a light into the intake 2 Start the engine and watch the fan begin to spin as the throttle is advanced If the fan is not spinning service or replace the pre cleaner as required Cummi...

Page 53: ...ent 2 Removetheprimaryfilterelementbypullingitout of the canister There will be some initial resis tance as the filter seal breaks loose and slides off of the outlet tube Gently move the end of the fi...

Page 54: ...settheairfilterrestrictiongauge pressbutton on the end of the indicator Engine Cooling System Cooling Air Intake System To prevent engine overheating and possible engine damage clean grass clippings c...

Page 55: ...engine cooling shroud and clean the cylinder head cooling fins thoroughly to prevent overheating and extend engine life Make sure cool ing shroud is reinstalled properly This procedure will require re...

Page 56: ...NOTE While some degree of material buildup in the mower deck housing can be tolerated a point is finally reached where cutting quality deterio ratesandcloggingbeginstooccurbecauseof too much buildup o...

Page 57: ...xle housings This may be the result of an oil leak If an oil leak is noticed contact your local Walker dealer Cooling Fins Transaxle Housing and Cooling Fins IMPORTANT In case an oil leak develops on...

Page 58: ...ine A hazard may be created by damage to critical working parts and safety systems CAUTION Important Battery Service Installation and Changing Tips for Electronic Fuel Injected engines Do not allow th...

Page 59: ...Pa Rear 20 PSI 137 kPa Wheel Nut Torque Check the eight 8 Drive Tire mounting nuts Every 100 hours they should each be torqued to 75 to 85 lb ft 102 to 115 N m Sharpen Mower Blades Check mower blade s...

Page 60: ...er end drops Balance of a blade is generally main tained by removing an equal amount of material from each end of the blade when sharpening Blade Balancer Blade Balanced on Magnetic Wall Mounted Balan...

Page 61: ...ches on the tractor Seat Switch FSC Neutral Park Switch and PTO Switch NOTE There is a 1 2 second time delay function on the seat switch to avoid engine power interruption when driving over bumps If a...

Page 62: ...ALWAYS use genuine factory re placement parts Substitute parts CAN result in product malfunction and possible injury to the oper ator and or others Drive Belts There are four 4 individual drive belts...

Page 63: ...engine PTO belt a Reverse the removal procedure to replace an engine PTO belt b Secure wire on lock pin above tab on lower PTO guard and right hand guard Engine PTO Belt Belt Guards Closed Engine Hidd...

Page 64: ...tensioner stop bolt and assembly is in place as shown Adjust Belt Tensioner Stop by tightening wing nut until it touches the washer then back off one 1 turn Ground Drive Belt Assembly Disengaged Groun...

Page 65: ...ther 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 Sharpen Mower Blades instructions refe...

Page 66: ...and should be replaced Inspect the blade surface especially in formed areas for cracks Replace the blade if any cracks are found WARNING DO NOT try to straighten a blade that is bent NEVER weld a bro...

Page 67: ...ey and can be completely removed 2 Install the deck drive belt by reversing the re moval procedure a Route the belt as shown on the belt routing decal located on the deck housing Leave the belt loose...

Page 68: ...other If they are not equal adjust accordingly The handles may or may not be even at this point NOTE The LH steering lever is non adjust able This procedure will require adjustment of the RH lever to...

Page 69: ...Position Adjustment 2 Securely block the tractor up so the drive tires are off the ground 3 Adjust the elastic stop nuts at the front of both control rods so that 2 or 3 threads are visible then loos...

Page 70: ...ission Control Arms should not be contacting the locating stud in the transaxle If they are back the set screws out until they do not touch T Handle Hex Wrench Maximum Speed Tracking Adjustment Transm...

Page 71: ...of the FSC lever The FSC lever should be within 1 8 in 3 mm of the NEUTRAL PARK position If this distance is greater than 1 8 in 3 mm the FSC Neutral Switch needs to be adjusted downward for quicker...

Page 72: ...roceed with adjustment as follows Adjust the length of the clutch actuator link to achieve a clutch spring assembly bolt head clear ance of 1 4 in to 5 16 in 6 35 mm to 7 94 mm with the clutch engaged...

Page 73: ...hin five 5 seconds after disengaging the clutch Use the following procedures to check and adjust clutch disengagement and brake action Step 1 Idler Pulley Maximum Travel Adjustment Loosen the brake ba...

Page 74: ...ssary to adjust the blade brake band nut to maintain these dimensions CLUTCH DISENGAGED CLUTCH ENGAGED 5 8 in to 3 4 in 16 mm to 19 mm Clutch Idler Pulley Travel Adjustment Blade Brake Band Blade Brak...

Page 75: ...s or failure to follow the instructions contained in the Operator s Manual for operation and maintenance B The customer shall pay any charges for making service calls and or for transporting the mower...

Page 76: ...WALKER MFG CO 5925 E HARMONY ROAD FORT COLLINS CO 80528 970 221 5614 FORM NO 010912 PRINTED IN USA www walkermowers com 2014 WALKER MFG CO...

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