Walker B18 Operator'S Manual Download Page 4

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Table of Contents

CLEANING

____________________________ 45

Engine Air Cooling System

_____________ 46

Cylinder Head Cooling Fins

____________ 46

Engine Air Cleaner System

_____________ 47

Cummins/Fleetguard OptiAir™

Air Cleaner

_________________________ 47

Grass Buildup in Mower Deck Housing

___ 49

Transaxle Housing

____________________ 50

CHECKING/SERVICING

__________________ 51

Security of Air Filtration Components

____ 51

Battery

______________________________ 51

Electrolyte Level

_____________________ 51

Cleaning the Terminals

________________ 51

Charging the Battery

__________________ 51

Tire Pressure

_________________________ 52

Wheel Nut Torque

_____________________ 52

Sharpen Mower Blades

________________ 52

Drive Belts

___________________________ 53

Mower Deck Gearbox Oil Seals

__________ 53

Spark Plugs

__________________________ 53

Breaker Points

_______________________ 53

Fuel Lines and Clamps

_________________ 53

Blade Brake Action

____________________ 53

PTO U-Joints

________________________ 54

Ignition Wires

________________________ 54

Safety Switch System

__________________ 54

Forward Speed Control Friction Lock

_____ 54

REPLACING/REPAIRING

_________________ 55

Drive Belts

___________________________ 55

Engine/PTO Belt

_____________________ 56

Ground Drive Belt

____________________ 57

Fuel Filter

___________________________ 58

Blade Overload Shear Bolts

_____________ 59

Shear Pin (If Equipped)

________________ 59

Mower Blades

________________________ 60

ADJUSTMENTS

________________________ 61

Transmission Control

__________________ 61

Steering Lever Position Adjustment

______ 61

Steering Handles Adjustment

___________ 62

Neutral Position Adjustment

____________ 62

Full Forward Speed Adjustment

_________ 64

Straight Tracking Adjustment

___________ 64

FSC Neutral Switch Adjustment

_________ 64

Forward Speed Control

Friction Adjustment

___________________ 65

Blade Clutch (PTO)

____________________ 66

Clutch Engagement/Belt Tension

________ 66

Clutch Disengagement/Brake Action

_____ 67

Idler Pulley Maximum Travel Adjustment

__ 67

Blade Brake Band Adjustment

__________ 68

Tilt-Up Deck Adjustable Stop

____________ 68

Operator’s Notes

___________________ 69

Warranty

___________________________ 71

Summary of Contents for B18

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 125166 Effective...

Page 2: ...y to the operator 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...

Page 3: ..._____________________ 21 PREOPERATING CHECKLIST______________ 22 Operating Instructions______________ 24 CONTROL IDENTIFICATION LOCATION AND FUNCTION ______________ 24 Ignition Switch_________________...

Page 4: ...54 Ignition Wires_________________________ 54 Safety Switch System__________________ 54 Forward Speed Control Friction Lock______ 54 REPLACING REPAIRING__________________ 55 Drive Belts______________...

Page 5: ...he 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...

Page 6: ...icing agent of the component manufacturer Any unauthorized work done on these components during the war ranty period may void the warranty If you have any difficulty finding an authorized outlet or ob...

Page 7: ...d Cummins Fleetguard OptiAirTM Walker P N 2090 1 Primary 2090 3 Safety Filter ELECTRICAL SYSTEM Battery 12 Volt 300 CCA Charging System Flywheel Alternator Charging Output 16 Amp DC Regulated System P...

Page 8: ...0 5 0 8 Infinitely Variable BLADE DRIVE PTO Shaft Sliding Spline Shaft with Two High Speed U Joints Blade Drive Clutch and Brake Manual Belt Tightener Clutch and Band Brake Stops Blades within Five 5...

Page 9: ...ght lb kg Tractor Only 572 259 Tractor with 48 Mulch Deck DM48 2 803 364 DRIVE BELTS Engine PTO Walker P N 4230 1 Ground Drive Walker P N 4230 2 SEAT Contour Molded with Nylon Backed Vinyl Cover and I...

Page 10: ...er Wheels Forward Speed Control FSC Friction Adjustment Tilt Up Latch Counterweight Springs and Protective Covers Deck Support Arm Tilt Up Deck Handle Deck Support Pins and Height Adjustment Hitch Pin...

Page 11: ...fication 7 Rear View and Left Side View Left Hand Drive Wheel Footrest Cylinder Head Cooling Fins Fuel Tank and Cap Spread Axle Tail Wheel Tailwheel Fork and Wheel Muffler Tailpipe Fuel Pickup Line Oi...

Page 12: ...e Fuel Tank Cap LH Transaxle LH Transaxle Lockout Arm Parking Brake Linkage Parking Brake Linkage RH Transmission Control Arm LH Transmission Control Arm Steering Lever Dampening Springs RH Transaxle...

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

Page 14: ...en gine should stop if 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 10 Handle gasoline with car...

Page 15: ...terlock 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 working Verify...

Page 16: ...orward with deck in tilt up position 18 In case of a clogged or plugged mower deck a Disengage the blade clutch PTO and turn the engine off before leaving the seat b LOOK to make sure blade drive shaf...

Page 17: ...sely 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 saf...

Page 18: ...28 1 1 Warning thrown object hazard Keep bystanders away from the machine when operating Clear lawn of debris before operating Keep any discharge deflector in place and in the lowest position 2 Warni...

Page 19: ...15 degrees 5 Warning thrown object hazard Keep bystanders away from the machine when operating 6 Choke 7 Warning entanglement hazard Keep all guards in place while engine is run ning 8 Parking brake...

Page 20: ...cation Gearbox Cover Gear Drive Decks Only Part Number 8600 9 Location Rear Body Part Number 4107 12 1 Warning stop engine and remove ignition key before adjusting deck cutting height 1 Tighten blade...

Page 21: ...ng a battery can be dangerous The battery should be taken to a reliable service station battery store or power equipment dealer where a trained techni cian can activate the battery safely DO NOT attem...

Page 22: ...ill the battery Electrolyte will overflow through the vented caps onto parts of the machine and WILL result in se vere corrosion 3 Install battery Mower Deck Assembly Deck Caster Wheels Installation 1...

Page 23: ...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 24: ...ll the hitch pin through the hole on the end of each support arm to lock the deck in place re fer to Deck Counterweight Spring Installa tion photo Two 2 hitch pins are included in the Owner s Packet o...

Page 25: ...m under the deck support pins on the low side to level the deck 3 Check the front to rear level Rotate the blades to point forward Measure the distance from bladetiptogroundonthefrontandrear Therear o...

Page 26: ...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...

Page 27: ...lt Up Latch Tilt Up Hook Deck Lock Lever Tilt Up Hook and Latch Connected Deck Lift Handle Deck Secured in TILT UP Position CAUTION Do not operate machine with deck tilt up pivot joint unlocked DANGER...

Page 28: ...after starting and S is the START position When start ing 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...

Page 29: ...ck maintains the selected lever position Pulling back on the steering levers overrides the FSC setting and slows or stops for ward travel Releasing the steering levers allows the tractor to resume for...

Page 30: ...e Engaged Parking Brake Disengaged Transaxle Lockout Arms The transaxle lockout arms disengage the transax les By lifting the arms up and locking them into place with the shoulder on the arm in the ch...

Page 31: ...et 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 intervals reflect the actual time tha...

Page 32: ...ng Levers RIGHT WHEEL STEERING LEVER Forward Position No Control Change Neutral Park Position LEFT WHEEL STEERING LEVER Reverse Drive Wheel Motion Position Fast Throttle Position Idle Position ON Posi...

Page 33: ...wer DO NOT disconnect safety switches they are for the operator s protection 2 Move the choke lever to the ON position and move the throttle 1 4 to 1 2 open toward FAST Turn the ignition switch to the...

Page 34: ...BEFORE operating on slopes Start maneuvering the mower with SLOW engine speed and SLOW Forward Speed Control setting until familiar with all operat ing characteristics Remember it is not necessary to...

Page 35: ...teer 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 Pull Steering...

Page 36: ...the operator is not in the seat The function of this switch should be checked by the operator raising off the seat and engaging the blade clutch the en gine should stop If the switch is not work ing i...

Page 37: ...king brake Also engaging the parking brake is recommended when stopping or parking the machine in a confined space with little tolerance for movement IMPORTANT The hydrostatic transaxles lock to preve...

Page 38: ...move toward the center of the machine to engage the step that holds the arm in the UP unlocked position 3 The mower will freewheel with the arms in the LOCKOUT position The levers must be in the high...

Page 39: ...the first pass and then make a second pass cutting to the desired height Use a slow setting on the FSC for trimming op erations Make sure the mower is leveled properly for a smooth cut Refer to Deck L...

Page 40: ...tilt up position since both the roller wheels on the back of the deck may be damaged by moving the tractor The tilt up configuration should only be used when the tractor is parked The tractor body sho...

Page 41: ...ve Tire Mounting Nuts 75 to 85 lb ft x 52 Check Blade Brake Action x x 53 Clean Transaxle Housing x 50 Check Air Filter Element x 48 Check Regap Spark Plugs x 53 Change Transaxle Oil and Filter x 45 R...

Page 42: ...er System Use only Cummins Fleetguard air cleaner ele ments Aftermarket elements may not seal in the air cleaner housing allowing dirt to enter the engine Also aftermarket filters often skimp on the f...

Page 43: ...e 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 after stopping the engine IMPORTANT NEVER check or add oil with t...

Page 44: ...ter to keep dirt and debris out of the engine 5 Remove the old oil filter and wipe off the filter mounting surface on the engine 6 Apply a thin coating of new oil to the rubber gas ket on the replacem...

Page 45: ...e 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 illustration NOTE...

Page 46: ...rease 1 18 Transaxle Oil Reservoir Oil 20W 50 1 19 Tail Wheel Caster Fork Pivot Grease 2 20 RearAxle Pivot Grease 1 21 Rear Wheel Bearing Grease 2 22 Throttle Control Cable Ends Oil 2 23 Choke Control...

Page 47: ...Maintenance Instructions LUBRICATION 43 Chassis and Deck Lubrication Points DS42 Shown 1 7 8 6 4 4 9 10 11 27 28 27 5 1 2 8 4 5 4 12 23 29 22 30 23 2 15 16 14 18 12 17 24 22 13 19 20 19 21 26 15 25...

Page 48: ...he gearbox shaft parallel to cover plate NOTE In case the gearboxes are completely drained of oil approximately 5 fl oz 15 cl of oil per gearbox is required to refill the gear drive assembly NOTE Sinc...

Page 49: ...50 API Service Class SL or higher oil through the opening where the elbows were Fill up to the opening 6 Before reinstalling the elbows screw the lock ing nut on the elbows down until they are snug th...

Page 50: ...gshroudsremovedwillcause engine damage from overheating Clean these areas of dirt and debris Clean Cooling Fins and Fan Cylinder Head Cooling Fins It is essential for performance and longevity of the...

Page 51: ...on the air cleaner outlet to indicate when the air filter needs servicing a yellow indicator will show when the filter is overly restricting airflow into the engine IMPORTANT Use only Cummins Fleetgua...

Page 52: ...solution is not recommended Do not try to clean the element with compressed air Remember replacing a fil ter is less expensive than replacing a dusted engine 4 Use a bright light inside the element t...

Page 53: ...r frame lift handle raise deck to the TILT UP position and insert the deck hook into the tilt up latch on the tractor body Tilt Up Latch Tilt Up Hook Deck Lock Lever Tilt Up Hook and Latch Connected D...

Page 54: ...s 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 the input s...

Page 55: ...Remove battery cell filler caps 2 Check the electrolyte level If the level is below the bottom of the vent well fill with distilled wa ter to the bottom of the vent wells 1 4 to 1 2 in 6 to 13 mm abo...

Page 56: ...ightness 3 Check the blades for straightness by marking the blade tip position inside the deck housing and then rotating the opposite end of the blade to the same position and comparing If the dif fer...

Page 57: ...eset the gap or replace with a new plug Clean spark plug with a wire brush If the electrodes are burned short or pitted replace the plug refer to Specifications for the proper type of replacement plug...

Page 58: ...peed Control FSC or PTO is engaged Without an operator in the seat the engine con tinues to run with the Forward Speed Control FSC and or PTO engaged With an operator in the seat the Forward Speed Con...

Page 59: ...wires IMPORTANT ALWAYS use genuine factory re placement parts Substitute parts CAN result in product malfunction and possible injury to the op erator and or others Drive Belts There are three 3 indivi...

Page 60: ...Open Engine Hidden for Clarity 2 To replace an 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 Engine PTO Belt Belt...

Page 61: ...Slide belt off pulleys then release the idler Ground Drive Belt Assembly Disengaged 2 Reverse the procedure to install the ground drive belt Ground Drive Belt Assembly Engaged Depress Idler Pulley to...

Page 62: ...up spilled gasoline immediately and completely Model B18 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 63: ...hear Pin If Equipped The PTO drive shaft connection 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...

Page 64: ...e operated over sandy soil and 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 dama...

Page 65: ...ection Step 1 Steering Lever Position Adjustment NOTE For proper operation the steering levers should be adjusted to sit evenly using the following procedure 1 Examine the steering levers to make sure...

Page 66: ...le in position in the adjustment slide Adjust the han dles into the most comfortable position and tighten both locknuts Adjustment Slide Locknut Position Locknut Pivot Point Steering Handles Adjustmen...

Page 67: ...SC in NEU TRAL PARK start the engine With the engine at normal operating speed check for movement of the drive wheels NOTE It may be necessary to tighten the FSC friction adjustment if the transmissio...

Page 68: ...unterclockwise until neutral is restored Then lengthen the control rod on the slower side by turning the tracking adjustment nut counterclockwise until straight tracking and neutral are both achieved...

Page 69: ...3 mm of the NEUTRAL PARK position If this distance is greater than 1 8 in 3 mm turn the adjustment bolt down slightly and recheck switch operation When finished adjusting tighten the jam nut and recon...

Page 70: ...adjustment as follows Adjust the length of the clutch actuator link to achieve a clutch spring assembly bolt head clearance of 1 4 in to 5 16 in 6 35 mm to 7 94 mm with the clutch engaged To adjust l...

Page 71: ...n 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 band...

Page 72: ...tion 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 clutch and brake linkage are working freely...

Page 73: ...69 Operator s Notes...

Page 74: ...70 Operator s Notes...

Page 75: ...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 charges for making service calls and or for...

Page 76: ...WALKER MFG CO 5925 E HARMONY ROAD FORT COLLINS CO 80528 970 221 5614 FORM NO 011216 PRINTED IN USA www walkermowers com 2016 WALKER MFG CO...

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