Walker Rider Lawnmowers MBSSD Owner'S Manual Download Page 67

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MAIN COMPONENT POWER TRANSMISSION

F012

F046

F336

F241

F013

F241

F388

F168

F091

F093

F009

Refer to
Body / Chassis Assembly

F020 22

F013

F034

F029

F185

F178

F034

Refer to
Engine Group

F008

F024

F004

F031

F009

F024

F034

F009

F031

F008

F004

F009

Refer to
Hydrostatic Ground
Drive Assemblies

F127

F163

F435

F114

F170

Effective Date 03-31-08

Use only genuine Walker

replacement parts.

Summary of Contents for MBSSD

Page 1: ...ting and Maintenance Instructions and ILLUSTRATED PARTS MANUAL Model MBSSD 27 HP Please Read and Save These Instructions Effective Date 03 31 08 For Safety Read All Safety and Operation P N 2000 1 Ins...

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: ...utch PTO ___________________ 23 Parking Brake________________________ 24 Transaxle Lockout Rods _______________ 24 Hourmeter___________________________ 24 STARTING THE ENGINE_________________ 26 ADJUS...

Page 4: ..._ 53 Steering Lever Position Adjustment _____ 53 Steering Handles Adjustment __________ 54 Neutral Position Adjustment ___________ 54 Full Forward Speed Adjustment ________ 55 Straight Tracking Adjust...

Page 5: ...o 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...

Page 6: ...ided 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 thes...

Page 7: ...ive 5 Gallon Tanks with Selector Valve Fuel Automotive Grade Unleaded Gasoline 87 Octane or Gasohol Up to 10 Ethyl Alcohol 90 Unleaded Gasoline by Volume Cooling System Air Cooled ELECTRICAL SYSTEM Ba...

Page 8: ...y Variable BLADE DRIVE PTO Shaft Sliding Spline Shaft with Two 2 High Speed U Joints Blade Spindle Each Blade 3 Mounts Directly on Belt Driven Spindles Blade Drive Clutch and Brake Manual Mechanical C...

Page 9: ...d Counterweight Springs CURB WEIGHT Approximate Tractor Only 730 lb 331 kg SD Tractor and 60 in SD Deck 1110 lb 503 kg DRIVE BELTS Engine PTO Walker P N 2230 Ground Drive Walker P N 2248 SEAT Contour...

Page 10: ...Deck Caster Wheels Counterweight Spring and Protective Cover Deck Support Arm Tilt Bar Deck Handle Forward Speed Control FSC Friction Adjustment Deck Discharge Shield Deck Height Adjustment Trigger D...

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

Page 12: ...kup Line Muffler Heat Shield LH Transaxle LH Transmission Control Arm RH Transmission Control Arm RH Transaxle Expansion Reservoir Oil Fill Dipstick Air Intake Plenum Steering Levers Dampeners RH Tran...

Page 13: ...t 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 the...

Page 14: ...ll 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 e...

Page 15: ...engage the parking brake and disengage the blade clutch PTO Tractor should not be mov ing while adjusting cutting height NOTE The clutch brake should normally stop drive line rotation within five 5 se...

Page 16: ...rsely 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 saf...

Page 17: ...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 2802...

Page 18: ...Safety Control and Instruction Decals are installed on the machine if any are missing illegible or damaged a replacement should be ordered and installed before putting the machine into operation The D...

Page 19: ...ivate battery with electrolyte if battery has been shipped dry 1 Remove the battery hold down bar disconnect the battery cables and lift the battery out of the tray IMPORTANT Battery must be removed f...

Page 20: ...lts and washers Deck Caster Wheel Installation Deck Discharge Shield Installation Attach the deck side discharge shield by positioning the shield hinge lug in front of the deck mount and fastening wit...

Page 21: ...Installation on Tractor Deck Installation 1 Lightly grease each deck support arm 2 on the tractor Refer to Mower Deck Installation photo for location of deck support arm 2 Engage the LH deck carrier...

Page 22: ...the Coupler Ring Locked Position photo After installation pull on the shaft to check for security Coupler Ring Locked Position 8 Raise the mower body instead of lifting the front of deck and clip the...

Page 23: ...t 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...

Page 24: ...ine Crankcase Oil Level in Maintenance Instructions CHECK AND SERVICE ENGINE AIR CLEAN ER SYSTEM Check air restriction gauge to make sure there is no red indication showing Check condition cleanliness...

Page 25: ...tractor makesuretore engagethelockingarmsafter lowering the deck to the normal operating position Deck Secured in Tilt Up Position CHECK MOWER BLADE CONDITION SHARP NESS BALANCE AND SECURITY OF MOUNT...

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: ...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 positi...

Page 28: ...ine 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 chassis otherwise ope...

Page 29: ...he Forward Speed Control also Establishes the Neutral Park Position of the Steering Levers Reverse Drive Wheel Motion Position Engaged Position Disengaged Position LEFT WHEEL STEERING LEVER Forward Po...

Page 30: ...p 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 the ON position CAN damage the en...

Page 31: ...rs tends to cause overcontrol Learn to operate the steering levers with smooth action Jerky movements are hard on the transmission and lawn For sharp turns do not allow the inside wheel to stop and tw...

Page 32: ...G THE MOWER 1 Set the engine throttle at about 1 3 speed Do not attempt to engage the blade clutch at high engine speeds This will drastically shorten drive belt life Use only moderate engine speed wh...

Page 33: ...hen transmission fluid is warm FUEL SELECTOR VALVE The tractor is equipped with dual fuel tanks A fuel selector valve regulates which tank is being utilized The valve is located on the right hand side...

Page 34: ...height adjustment lever Slowly release the height peddle while lifting the lever until there is no pressure on the peddle Cutting Height Adjustment Transport Position 1 Disengage the PTO 2 Push down...

Page 35: ...ockout Rod 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...

Page 36: ...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 Recommended Side Slope REC...

Page 37: ...x 35 Check Regap Spark Plugs x 49 Change Transaxle Oil and Filter x 40 Check Fuel Lines and Clamps x 49 Replace Air Filter Element and Dust Ejection Valve x 42 Service Battery x 47 Replace Fuel Filter...

Page 38: ...g dirt to enter the engine Also aftermarket filters often skimp on the filtration media and require more frequent replacement see following instructions Use the air flow restriction gauge to indicate...

Page 39: ...e 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 th...

Page 40: ...urface 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 Ref...

Page 41: ...4 and 1 2 in 0 64 cm and 1 27 cm Expansion Reservoir Location Grease Fitting and Oil Point Lubrication Lubricate the grease fittings and oil points after every 25 hours of operation Lubricate more oft...

Page 42: ...pling Grease 1 Grease Slide Area 11 Deck Support Arm Pivot Grease 2 12 Universal Joint Tube Assembly Grease 1 13 FSC Lever Pivot Grease 1 14 Hydro Idler Arm Pivot Grease 1 15 Body Latch Oil 2 16 PTO C...

Page 43: ...Maintenance Instructions LUBRICATION 39 13 17 2 4 1 5 6 7 27 9 8 18 26 11 19 25 24 23 20 18 19 21 20 22 16 14 12 11 10 9 8 7 6 5 3 4 1 2 15 15 Chassis and Deck Lubrication Points...

Page 44: ...o the elbow on top of the transaxles and remove the elbows to access the oil fill openings 5 Fill the transaxles with 20W 50 API Service Class SL or higher oil through the opening where the elbows wer...

Page 45: ...ge 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...

Page 46: ...Use a bright light inside the element to inspect for 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 nece...

Page 47: ...veral times each day to prevent engine overheating Keep Engine Screen Clean Cylinder Head Cooling Fins It is essential for performance and longevity of the air cooled engine to keep the cylinder head...

Page 48: ...engine Engine Air Intake Screen and Cooling Fin Access Panels Grass Buildup in Mower Housing 1 Release hood latch assembly 2 and remove footrest 2 Rotate locking arms upward on each side of the carrie...

Page 49: ...ousing can be tolerated a point is finally reached where cutting quality deteriorates and clogging begins to occur because of too much buildup on the baffling and housing 6 Lower the deck to the norma...

Page 50: ...nd the housing the fins underneath need to be clean as well as the more visible fins above Also pay close attention to the area under the drive pulley IMPORTANT In case an oil leak develops on the inp...

Page 51: ...ing the Battery Check the battery charge by measuring the specific gravity of electrolyte if specific gravity is less than 1 225 the battery will need to be charged as follows Charge the battery at 15...

Page 52: ...t and washer that mounts the blade 5 Grind cutting edge at the same bevel as the original Sharpen only the top of the cutting edge to maintain sharpness NOTE Blades can be sharpened with an electric b...

Page 53: ...ade 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 st...

Page 54: ...by depressing idler arm c Roll the belts off the pulley and remove the belts Jam Nut Idler Tension Bolt Idler Arm PTO Pulley Engine PTO Belts 1 2 in deflection Idler Arm PTO Pulley Engine PTO Belts En...

Page 55: ...hen release the idler Raise Idler Pulley to Relax Belt LH Transaxle Ground Drive Belt RH Transaxle Hydro Idler Arm Tension Spring Idler Pulley Drive Pulley Ground Drive Belt Assembly Disengaged 2 Reve...

Page 56: ...rm 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 should be re...

Page 57: ...el straight this is due to the break in of the tran saxles Steering Lever Position Adjustment Step 1 NOTE For proper operation the steering levers should be adjusted to sit evenly using the following...

Page 58: ...ard Speed Control FSC in neu tral the lever should be straight up Adjust by loosening the jam nuts on the FSC Rod and turn the rod to attain the straight up position Tighten the jam nuts FSC Position...

Page 59: ...it in the seat start the engine set throttle at full speed andwith the FSC in the NEUTRAL PARK position check for movement of either drive wheel if either wheel moves backward or for ward refer to the...

Page 60: ...ward 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 decreas...

Page 61: ...ement spring to the lower mounting of the clutch actuator link be 5 1 4 in 13 3 cm when engaged Clutch Rod The clutch rod and ball joints are factory adjusted to 10 1 4 in 26 0 cm overall length Incre...

Page 62: ...outing Rear Body Underside 1 13 4107 1 Danger Rotating Components Air Cleaner 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 T...

Page 63: ...19 1 B E L T R O U T I N G DR IVE BEL T DR IVE BEL T WA LKE R P N 273 1 WA LKE R P N 273 1 CA RLI SLE P N R3V X12 50 2 CA RLI SLE P N R3V X12 50 2 BEL T TW IST BEL T TW IST DR IVE PU LLE Y DR IVE PU...

Page 64: ...rt Arm Hitch Assemblies 39 2300 9 Deck Arm Support Mount 1 40 6840 1 Support Arm Bushing 2 1 16 2 41 2775 Lynch Pin 5 16 x 1 1 4 2 42 2431 Deck Support Arm LH 1 Includes Item 21 43 2430 Deck Support A...

Page 65: ...34 39 F446 40 21 42 F430 F430 41 41 21 43 40 F446 F034 F009 20 F034 F442 F246 5 5 6 4 F009 F009 F009 F009 19 F002 F025 F004 F348 F347 27 F344 28 29 29 28 30 F219 F219 F218 F218 31 36 F034 F013 21 21 2...

Page 66: ...2 27 7201 7 Inner Race 2 5 8 1 28 7201 3 DU Bearing 2 29 2230 Engine PTO Belt Set 3 1 30 2236 4 Idler Pulley Shaft 1 31 2325 3 Idler Adjuster 1 32 2325 2 Tensioner Bolt 1 33 5830 3 Grease Fitting 45 D...

Page 67: ...sembly F020 22 F013 21 F034 F029 F185 F178 F034 Refer to Engine Group F008 1 2 F024 4 5 F004 F031 F009 F024 4 6 10 F034 F009 F031 11 8 8 9 12 7 F008 14 13 12 32 F004 9 F009 F009 F009 Refer to Hydrosta...

Page 68: ...ty Filter Insert 1 30 2090 1 Air Cleaner Cartridge 1 31 2088 2 Air Cleaner Cap 1 32 2090 2 Vacuator Valve 1 33 2010 Pre Cleaner Guard Mount 1 Choke and Throttle Assemblies 34 2109 4 Control Cable 65 1...

Page 69: ...38 41 35 34 42 37 40 F050 F185 F184 F184 F185 1 3 2 4 5 3 2 5 6 F185 F184 F184 F185 6 7 17 18 19 F009 20 21 20 F002 F002 22 23 F025 F025 22 To Engine 24 25 24 F439 F175 Refer to Body Chassis Assembly...

Page 70: ...t 1 31 5221 Extension Spring 3 4 x 4 1 32 4245 Idler Pulley 3 A 1 33 5841 Retainer Washer 3 8 x 1 1 4 1 34 2349 1 Hydro Idler Arm 1 Includes Item 35 35 5830 3 Grease Fitting 45 Deg 1 36 7201 5 Inner R...

Page 71: ...F009 F034 17 18 F003 F010 19 20 F003 F010 17 18 F010 F182 F010 19 20 21 22 F388 38 23 F169 24 F182 8 25 F182 8 25 24 F173 F013 F004 37 36 34 31 F211 F043 F054 32 F012 F040 F051 F013 39 49 40 F031 F03...

Page 72: ...5222 Extension Spring 1 2 x 3 1 4 2 30 4452 6 Steering Pivot 1 4 20 x 1 1 2 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...

Page 73: ...F198 19 19 21 F188 F198 F345 25 26 28 30 F005 27 29 F003 F352 F320 F004 38 37 39 40 41 42 43 F032 15 10 11 12 F146 F391 F024 F008 13 14 F146 F391 F024 F008 10 13 12 18 8 F373 9 F008 F004 F209 36 F032...

Page 74: ...Less Harness 1 14 7948 5 Time Delay Harness 1 15 7833 2 Cable Clamp 1 x 1 4 2 16 2941 5 Safety Switch NO 1 17 7203 6 Riser Plate Seat Switch 1 18 2940 3 Battery Cable 14 2 19 7910 Battery 12V 340CCA D...

Page 75: ...F026 F025 F026 F002 17 15 28 15 18 26 27 F004 F002 F031 F026 F019 F050 23 25 21 20 20 22 F031 F050 F004 19 18 30 F002 14 29 F002 F002 7 F025 BRN YEL BRN YEL DETAILI DETAILH PUR RED PUR RED GRN BRN GRA...

Page 76: ...13 x 5 00 6 2 W Bearing Race 32 8768 2 Seal Reverse Lip 2 33 8038 1 Spacer Tail Wheel Axle 2 750 x ID x 1 125 OD 34 8039 Nut Tail Wheel Axle 2 Deck Lift Components 35 2722 1 Deck Height Adjustment LH...

Page 77: ...13 F004 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 2...

Page 78: ...2 40 2350 5 Washer 3 8 16 Tap 1 4 Thk 2 41 2731 Blade Drive Belt R3VX1250 1 42 5841 Retainer Washer 3 8 x 1 1 4 1 43 2245 1 Idler Pulley 1 2245 Idler Pulley Assembly Includes Items 33 34 43 F445 44 58...

Page 79: ...F034 F013 35 F075 F445 F041 F051 F051 F041 F013 F276 F055 F045 37 38 F059 F013 10 1 F025 F059 F013 10 6 11 13 14 F009 F002 F009 F009 F004 F131 F049 18 F002 F009 F268 16 17 F009 F268 16 17 F009 F039 F...

Page 80: ...NO REQ D Use only genuine Walker replacement parts Effective Date 03 31 08 76 MULCH KIT Mulch Kit 1 2691 4 Baffle RH 1 2 2691 2 Vee RH 1 3 2691 5 Center Skirt 1 4 2691 1 Vee LH 1 5 2691 3 Skirt LH 1...

Page 81: ...F004 F004 F029 F029 F029 F029 F029 F029 F029 F029 F029 F029 F029 F004 F004 F004 F004 F004 F004 F004 F004 2 4 5 3 Refer to DSD60 Deck Assembly Effective Date 03 31 08 Use only genuine Walker replaceme...

Page 82: ...START RELAY OFF START PTO ON 30 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...

Page 83: ...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 War...

Page 84: ...l 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 m...

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