Walker Rider Lawnmowers MB Owner'S Manual Download

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OWNER’S MANUAL

Safety, Assembly, Operating, and Maintenance Instructions

and ILLUSTRATED PARTS MANUAL

Model MB (18 HP)

Please Read and Save These Instructions

Effective Date: 09-01-06

For Safety, Read All Safety and Operation

P/N 4000-3

Instructions Prior to Operating Machine

Summary of Contents for MB

Page 1: ...rating and Maintenance Instructions and ILLUSTRATED PARTS MANUAL Model MB 18 HP Please Read and Save These Instructions Effective Date 09 01 06 For Safety Read All Safety and Operation P N 4000 3 Inst...

Page 2: ...rtant to your safety and must be read and understood to help prevent possible injury to the operator or others If anything in this manual is confusing or hard to understand please call our service dep...

Page 3: ...D AND STEERING _________________ 28 ENGAGING THE MOWER________________ 30 STOPPING THE MACHINE _______________ 31 ADJUSTING CUTTING HEIGHT ___________ 31 TRANSAXLE LOCKOUTS________________ 32 RECOMMEN...

Page 4: ...___ 53 Straight Tracking Adjustment __________ 53 Neutral Switch Adjustment ____________ 54 Forward Speed Control Friction Adjustment 54 Tilt Up Deck Adjustable Stop ___________ 54 PTO Belt Tension __...

Page 5: ...and controls power from the ground drive belt to the main drive wheel LEFT HAND LH refers to the left hand side of the tractor when the operator is seated facing forward in the tractor seat POWER TAK...

Page 6: ...arranty period it is important to find a local authorized servicing agent of the component manufacturer Any unauthorized work done on these components during the war ranty period may void the warranty...

Page 7: ...Cooling System Air Cooled ELECTRICAL SYSTEM Battery 12 Volt 220 CCA Interstate PC12 80 Charging System Flywheel Alternator Charging Output 16 Amp DC Regulated System Polarity Negative Ground Ignition...

Page 8: ...Direct on Peerless Right Angle Gearbox with Tee Gearbox in Center Connected to PTO Shaft Complete Geared Drive Peerless Model 1000 Gearboxes Blade Drive Clutch and Brake Mechanical Clutch with Interna...

Page 9: ...2 in 5 cm Center Overlap 48 in 122 cm SD Model 25 in 64 cm Two 2 Clockwise Rotating Blades with a 2 in 5 cm Center Overlap 56 in 142 cm SD Model 20 in 51 cm Three 3 Clockwise Rotating Blades with a 2...

Page 10: ...n Deck Discharge Shield Deck Lift Handle Cutting Height Adjustment Deck Caster Wheels Tilt Up Latch Deck Support Arm Deck Support Pin and Height Adjustment Hitch Pins Tilt Up Hook Footrests Tilt Up De...

Page 11: ...t Identification 9 Rear View and Left Side View Oil Dipstick Left Hand Drive Wheel Cylinder Head Cooling Fins Oil Fill Muffler Tailwheel Fork and Wheel Fuel Filter Fuel Pickup Line Tailpipe Fuel Tank...

Page 12: ...Weight Fuel Filter Negative Battery Cable Air Cleaner Cover Air Cleaner Cover Latch Parking Brake Linkage LH Transaxle Expansion Reservoir Steering Levers Dampening Springs RH Transaxle Expansion Rese...

Page 13: ...ct your authorized Walker Mower Dealer or call Walker Manufacturing Company at 970 221 5614 BEFORE OPERATING 1 Read and understand the contents of this Owner s Manual before starting and operat ing th...

Page 14: ...ine 11 Never attempt to make any adjustments while theengineis running except where spe cifically instructed to do so 12 The electrical system battery contains sulfuric acid Avoid any contact with ski...

Page 15: ...in tilt up position 16 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 shaft move ment has s...

Page 16: ...been factory set for maximum safe engine operating speed 10 Use genuine factory replacement parts Sub stitute parts may result in product malfunction and possible injury to the operator and or others...

Page 17: ...y are missing illegible or damaged a replacement should be ordered and installed before putting the machine into operation The Decal Part Number is listed below and in the Parts Section RH Fender 5802...

Page 18: ...installed before putting the machine into operation The Decal Part Number is listed below and in the Parts Section Parking Brake 7809 Center Body Behind Transaxles 9804 Front Body Adjacent to LH Stee...

Page 19: ...e axle spacer tube through the wheel hub position the spacer washer on each side of the hub if used and fit the assembly into the wheel fork 3 Insert the 3 8 16 x 4 1 2 in bolt through the wheel fork...

Page 20: ...photo for location of deck support arm 2 Engage the deck carrier frame tube sockets on the tractor support arms refer to PTO Shaft Guard Installation photo for socket location Slide the deck onto the...

Page 21: ...s connected the weight on the deck caster wheels should be 15 to 25 Ib 6 8 to 11 3 kg Check this weight by lift ing on the front of the deck carrier frame If required the spring tension can be adjuste...

Page 22: ...3 Check the front to rear level Rotate the blades 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 th...

Page 23: ...on someoftheseitems willnotneedto becheckedevery day butthe operatorshouldbeaware ofthe condition of each Body Rod in Engaged Position Body Rod in Stowed Position CHECK BODY ROD IN STOWED POSITION Che...

Page 24: ...Walker Dealer to perform this procedure CHECK SECURITY OF DRIVE TIRE MOUNT ING NUTS The eight 8 Drive Tire mounting nuts should each be torqued to 75 85 ft lbs 101 7 115 2 N m INSPECT TWO 2 DRIVE BELT...

Page 25: ...ructions ADJUST MOWER CUTTING HEIGHT IF RE QUIRED Position the hitch pins in the four deck support pins Refer to the Cutting Height Adjustment decal on the deck gearbox cover PERFORM ANY ADDITIONAL PR...

Page 26: ...O position for at least 60 seconds before making a restart attempt Prolonged cranking can damage the starter motor and shorten battery life Release the key when the engine starts and it will return t...

Page 27: ...onal to the lever position the further the lever is advanced forward the faster the tractor moves It is not necessary to hold the FSC in position since the friction lock maintains the selected lever p...

Page 28: ...e without the engine running e g for service Refer to TRANSAXLE LOCKOUTS in this section for operating instructions NOTE The transaxle lockout rods ends should be completely retracted against the body...

Page 29: ...Position Intermediate Ground Speed Position Neutral Park Position Idle Position ON Position OFF Position CHOKE Fast Throttle Position Operating Controls Top View from Drivers Point of View The Forward...

Page 30: ...ne to run smoothly as it warms up As soon as possible move the choke to the OFF position IMPORTANT Make sure the choke is in the OFF position during normal engine operation running with the choke in t...

Page 31: ...que Walker feature always PULL on the levers for steering or for reverse motion of the mower Learn to operate the mower with your left handon the steering levers and righthandon Forward Speed Control...

Page 32: ...PARK position the transmission control needs to be adjusted Contact your Walker Dealer ENGAGING THE MOWER 1 Set the engine throttle at about 1 3 speed Do not attempt to engage the blade clutch at high...

Page 33: ...e hitch pins Cut ting heights range from 1 in 25 mm top holes to 4 in 102 mm bottom holes in 1 2 in 13 mm increments Cutting Height Adjustment CAUTION If the cutting blades strike a stationary object...

Page 34: ...Normal Operating Position RECOMMENDATIONS FOR MOWING IMPORTANT Operate the engine at full speed when mowing to allow the engine to produce full horsepower and to increase efficiency of the engine cool...

Page 35: ...a slope reduce speed and use caution to start stop and maneuver Avoid sharp turns or sudden changes in direction The maximum recommended side slope operating angle is 20 degrees or 33 grade Maximum R...

Page 36: ...l Air Filter Foam Element x 42 Change Engine Crankcase Oil x 36 Change Engine Oil Filter x 36 Check Security of Drive Tire Mounting Nuts 75 85 ft lbs x 22 Clean Transaxle Cooling Fins x 43 Change Tran...

Page 37: ...ner housing allowing dirt to enter the engine Also af termarket filters often skimp on the filtration media and require more frequent cleaning and replace ment DO NOT overservice or frequently disturb...

Page 38: ...lean rag then reinsert the dipstick into the tube and press all the way down 4 Remove the dipstick again and check the oil level on the dipstick The oil level should be within the Operating Range on t...

Page 39: ...eather and assure proper lubrication in hot weather Fill to FULL mark on the dipstick crankcase capacity is 1 5 quarts 1 4 liters when changing oil and filter IMPORTANT Check the dipstick reading be f...

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Page 41: ...Maintenance Instructions LUBRICATION 39 3 4 5 7 7 8 11 9 13 16 17 18 6 1 2 4 7 6 7 11 12 22 23 20 24 21 20 19 15 1 2 10 12 14 22 Chassis and Deck Lubrication Points...

Page 42: ...ly NOTE Since the gearboxes are connected as a unit by connector tubes it is necessary to add oil slowly Allow a few minutes after adding oil for the oil to flow throughout the assembly and the oil le...

Page 43: ...ed refer back to steps 5 9 Transaxle Drain Plugs view from underside of tractor CLEANING Engine Air Cooling System To prevent engine overheating and possible engine damage clean grass clippings chaff...

Page 44: ...ot recommended Replace the element if it does not clean up with compressed air Use a bright light inside the element to inspect for damage Check the element very carefully for pin holes or other damag...

Page 45: ...lean and free of obstruction is essential to avoid overheat ing the transmission fluid and shortening transmission life The cooling fins should be checked every 100 hours and cleaned if necessary To c...

Page 46: ...Tire Pressure Inflate tires to pressures shown below Deck Caster Wheel 20 PSI 137 kPa Drive 15 PSI 103 kPa Rear 20 PSI 137 kPa Wheel Nuts Torque Check every 100 hours the eight 8 Drive Tire mounting...

Page 47: ...alanced on Magnetic Wall Mounted Balancer 7 Mount the blade with wing tips pointing up into the housing Reinstall the blade washer lock washer and nut Tighten the nut to 60 ft lb 81 3 N m Drive Belts...

Page 48: ...Brake Action Check the function of the cutter blade brake by engaging the blade clutch PTO operating the engine at full throttle then disengaging the clutch and measuring how quickly the blades stop W...

Page 49: ...y depressing idler arm c Roll the belt off the pulley and remove the belt Idler Arm Engine PTO Belts Idler Tension Bolt Jam Nut PTO Pulley Idler Arm Engine PTO Belts PTO Pulley 1 2 1 27 cm deflection...

Page 50: ...hen release the idler Raise Idler Pulley to Relax Belt LH Transaxle Ground Drive Belt Tension Spring RH Transaxle Drive Pulley Idler Pulley Hydro Idler Arm Ground Drive Belt Assembly Disengaged 2 Reve...

Page 51: ...ve the blade and install new bolts Refer to CHECKING SERVICING in this section for Sharpen Mower Blades which describes the blade removal and installation procedure After reinstalling the blade check...

Page 52: ...up to form the wing tip refer to Mower Blade Pro file For Sharpening illustration in Sharpen Mower Blades instructions Since sand and abrasive ma terial can wear metal away in this area the blade shou...

Page 53: ...y 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 make it even with the LH lever Lever Alignmen...

Page 54: ...e jam nuts Be sure to tighten jam nuts before making the measure ment Actuator Rod Length Adjustment 3 Block the tractor up so the drive tires are off the ground 4 With the FSC in neutral start the en...

Page 55: ...ep 2 and readjust 2 Check for straight ground tracking on a level surface with hands off the steering levers Set the FSC at several different speeds and ob serve if the mower moves in a straight line...

Page 56: ...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 adjustment nut Loosen or tighten the nut and...

Page 57: ...justment Engaged NOTE When making any of the above adjustments it is important that the overall length from the top of the clutch engagement spring to the lower mounting of the clutch actuator link be...

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Page 65: ...DUWV 63 1 1 5283 F164 F050 F201 F002 F002 F025 F005 7 28 F275 F185 F208 12 25 24 26 20 21 22 8 9 10 8 11 16 15 17 27 F185 F184 F184 F009 F009 23 Refer to Body Chassis Assembly 18 19 6 F050 13 14 F026...

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Page 69: ...6 F059 F183 F024 F093 1 2 4 7 F385 8 12 Refer to Body Chassis Assembly F010 F008 F391 F146 11 9 12 F093 F183 26 25 26 25 14 31 10 16 14 17 18 31 F024 F235 F373 F009 F004 10 16 29 29 28 27 27 28 13 14...

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Page 71: ...UR WHT YEL WHT BLK RED RED WHT BLU RED RED DETAILG BRN WHT BLK DETAILE BLK BLK YEL YEL PUR PUR DETAILF BRN WHT WHT BLK BLK BLK BLK BRN WHT PUR RED PUR BLK ORG ORG RED WHT PUR PUR RED C Refer to Main C...

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Page 73: ...ChassisAssembly F016 15 F140 F205 F218 F423 18 F046 16 F013 17 F016 F377 19 20 21 20 19 22 23 F140 F218 27 29 30 31 32 32 33 33 33 F344 F347 F348 26 27 24 25 28 Refer to Body Chassis Assembly 2 11 10...

Page 74: ...87 30 87A 30 87A IGNITION SWITCH CIRCUITS OFF START RUN G M B A S1 S2 B A RUN RELAY B START RELAY OFF START PTO ON 30 87 30 87 30 87A 30 87A STARTER SOLENOID MAGNETO RECTIFIER REGULATOR CARB SOLENOID...

Page 75: ...all 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...

Page 76: ...Clear Temperature 65 F o 18 C o Wind Speed 5 mph 8 kmh Humidity 25 Barometric Pressure 83 8 kPA Lwa 97 OPERATOR Vibration Model MB Vibration Level Vibration levels at the operators handles were measur...

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