Walker B27i Operator'S Manual Download Page 66

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Maintenance Instructions

B27i

Replacing and Repairing

Fuel Filter

DANGER

Gasoline is extremely flammable and can

be highly explosive. To minimize danger:

●

Before servicing the fuel system:
1. Disconnect the spark plug leads.
2. Disconnect the negative (-) battery

cable from battery.

●

Use only an approved fuel container

for gasoline.

●

DO NOT allow open flames or sparks

near the machine while performing

maintenance or refueling; DO NOT

smoke while working with fuel.

●

Wipe up spilled gasoline immediately

and completely.

Model B27i is equipped with an inline fuel filter

between the fuel tank and the fuel pump (low pres-

sure fuel pump). Visually inspect the filter periodi-

cally, and replace the filter

every 400 hours

. Use

Walker P/N 5020-3 or Kohler P/N 24-050-13, 9-12

microns for replacement filter.

Fuel Pump

In-Line

Fuel Filter

Fuel Pump and Fuel Filter Locations

IMPORTANT:

Replace the fuel filter only in a

clean area where the fuel line and connections will

not be contaminated by dust and dirt.

1. Expand and slide clamps on either side of the

filter away from filter and pull fuel lines off filter.

2. Replace filter, making sure that the arrow on

the filter is aligned with the fuel flow through

the filter.

Verify that the fuel lines and clamps are se-

curely attached, and that no fuel leaks are

present.

Blade Overload Shear Bolts

NOTE:

Blade shear bolts are not used on belt

driven decks.

On gear driven decks, each cutting blade is keyed

to the blade hub by

two (2) shear bolts

(10-24 x

5/8 in. stainless steel machine screws). These

bolts are designed to shear and protect the blade

drive gearbox from damage if the blade encounters

a shock load.

Cutting Blade

Shear Bolts

Cutting Blade Shear Bolts

NOTE:

Tightening the

5/8-18 blade mounting

nut to 60 lb·ft (81 N·m)

is also important for prop-

er shock load protection. It is important to

not

overtighten

the mounting nut since this defeats

(overrides) the function of the shear bolts.

If these bolts shear, remove the blade and install

new bolts. Refer to

Sharpen Mower Blades on

page 56

which describes the blade removal and

installation procedure.

After reinstalling the blade, check blade timing (on

gear driven decks) by moving blades through

one

(1) complete revolution

. Make sure blade tips

pass clear of each other. If timing is incorrect,

contact your Walker dealer.

Summary of Contents for B27i

Page 1: ...anual Safety 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 162292 P N 4000 28 ...

Page 2: ...tor 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 B27i with the Kohler Command Pro ECH749 26 5 HP Electronic Fuel Injection EFI gasoline engine All shields and guards must be in place for the proper ...

Page 3: ... Speed Control FSC 28 Steering Levers 28 Parking Brake 28 Blade Clutch Switch PTO 29 Oil Pressure Warning Horn 29 Transaxle Lockout Arms 29 Engine Service Light 29 Circuit Breaker and Fuses 30 Seat Panel Latch 30 Rear Body 30 Hourmeter 30 Starting the Engine 32 Adjusting Ground Speed and Steering 32 Engaging the Blade Drive 34 Stopping the Machine 35 Adjusting Cutting Height 36 Transaxle Lockout 3...

Page 4: ...s 58 Blade Brake Action 58 PTO U Joints 58 Engine Starter 58 Safety Switch System 58 Forward Speed Control Friction Lock 59 Transmission Control Setting 59 Neutral Park 59 Straight Ground Tracking 59 Replacing Repairing 60 Drive Belts 60 Remove Belts 60 Install Belts 60 Fuel Filter 62 Blade Overload Shear Bolts 62 Mower Blades 63 Adjustments 64 Transmission Control 64 Step 1 Steering Lever Positio...

Page 5: ...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 discharges mowed material from the right side of the mower deck SOFT STAR...

Page 6: ...s important to find a local authorized servicing agent of the component manufacturer Any unauthorized work done on these compo nents during the warranty period may void the warranty If you have any difficulty finding an authorized outlet or obtaining warranty service please contact our Service Department for assis tance Walker Manufacturing Company 5925 E Harmony Road Fort Collins CO 80528 1 970 2...

Page 7: ...ystem Air Cooled Air Cleaner Remote mounted Donaldson Radialseal 5 Walker P N 5090 8 Primary 5090 7 Safety Filter ELECTRICAL SYSTEM Battery 12 Volt 340 CCA Charging System Flywheel Alternator Charging Output 20 Amp DC Regulated System Polarity Negative Ground Ignition Electronic Capacitive Discharge Starter 12 Volt Electric Key Operated Solenoid Shift Interlock Switches Ignition Lockout by Seat Sw...

Page 8: ... Clutch and Brake Ogura Electric Clutch with Soft Start Engagement and Mechanical Brake Stops Blades within Five 5 Seconds of Disengagement TIRE SIZE Deck Caster 8 x 3 00 4 Semi Pneumatic Standard 8 x 3 00 4 Pneumatic 4 Ply Optional 11 x 4 00 5 Pneumatic 4 Ply DS52 DS62 DS74 Only Drive 18 x 8 50 10 Pneumatic 4 Ply Low Profile Tailwheel 11 x 4 00 5 Pneumatic 6 Ply TIRE PRESSURE PSI KPA Deck Caster ...

Page 9: ...ck DM52 848 385 DRIVE BELTS Engine PTO Drive Walker P N 4330 3 Ground Drive Walker P N 4230 2 SEAT Built up Seat with Steel Frame Extra Thick Foam Cushions and Bolsters and Removable Replaceable Nylon Backed Vinyl Covers FRAME BODYCONSTRUCTION Frame All Welded Unitized Steel Chassis Body 14 Gauge Steel Deck 11 Gauge Steel NOTE The manufacturer reserves the right to make changes in specifications s...

Page 10: ...age 27 Front View and Right Side View Deck Caster Wheels Deck Lift Handle Cutting Height Adjustment Footrests Deck Support Pins and Height Adjustment Hitch Pins Tilt Up Latch Deck Support Arm Counterweight Springs and Protective Covers Seat Panel Latch Forward Speed Control FSC Friction Adjustment Tilt Up Deck Handle Deck Support Arm ...

Page 11: ...Left Side View Left Hand Drive Wheel Cylinder Head Cooling Fins Spread Axle Tail Wheel Fuel Pickup Line Fuel Gauge Footrests Tailpipe Muffler Guard Muffler Heat Shield Rear Body Shown or Optional Dump Bed Fuel Tank and Cap Tailwheel Fork and Wheel ...

Page 12: ...le Lockout Arm Transaxle Oil Expansion Reservoir EVAP Line Roll Over Valve Fuel Gauge Oil Fill RH Transaxle LH Transaxle Steering Lever Spring Dampeners Parking Brake Lever Parking Brake Linkage Oil Cooler 30 Amp Master Circuit Breaker Not Visible Fuel Pump Low Pressure Fuel Filter Not Visible Air Filter Restriction Gauge Not Visible Oil Pressure Warning Horn Not Visible Electric PTO Clutch Turbin...

Page 13: ...ded by Walker Manufacturing must take full responsibility for safety The Walker Rider Lawnmower has been designed with many safety features to protect the operator from personal harm or injury However it is neces sary for the operator to use safe operating proce dures at all times Failure to follow safety instructions contained in this manual may result in personal injury or damage to equip ment o...

Page 14: ... in the operating position 1 Forward Speed Control FSC out of NEU TRAL PARK 2 PTO Clutch ENGAGED or 3 Parking Brake DISENGAGED 10 Handle gasoline with care Gasoline is highly flammable and its vapors are explosive a Use an approved fuel container b Never add fuel to a running engine or hot engine allow hot engine to cool several minutes c Keep matches cigarettes cigars pipes open flames or sparks ...

Page 15: ...tion interlock switch normally prevents starting of the machine if these controls are in the OPERATING position 7 Do not operate machine if the operator presence safety switch system is not work ing Verify proper operation by having the operator lift off the seat with the engine run ning and moving three controls one at a time 1 Move the FSC lever out of the NEUTRAL PARK position 2 Engage the PTO ...

Page 16: ... position 18 In case of a clogged or plugged mower deck a Disengage the blade clutch PTO engage the parking brake and turn the engine off before leaving the seat b LOOK to make sure blade drive shaft movement has stopped before trying to unclog the system c Disconnect the spark plug wires d Never place hands under the deck use a stick or similar tool to remove clogged material 19 If the cutting bl...

Page 17: ...ny safety devic es or defeat the purpose of these safety de vices 9 Do not change the engine governor settings or overspeed the engine The governor has been factory set for maximum safe engine operating speed 10 Use genuine factory replacement parts Sub stitute parts may result in product malfunc tion and possible injury to the operator and or others 11 Use care when charging the battery or per fo...

Page 18: ...eye and ear protection when operating the machine 3 Warning crushing dismemberment hazard of bystanders Do not carry passengers Always stop the machine if someone enters the area 4 Warning thrown object hazard Keep bystanders away from the machine when operating 5 Warning always be aware of what is behind the machine before backing up Do not mow in reverse unless absolutely necessary Always look d...

Page 19: ...600 48 1 Forward Speed Control Move lever forward to increase speed Move lever back to stop 2 Warning read Operator s Manual before servicing or performing maintenance Engage parking brake Remove ignition key 3 Warning do not operate the machine without a deck or other implement attached 4 Throttle Move lever forward to increase engine speed Move lever back to idle 5 Warning roll over hazard Do no...

Page 20: ...Keep all body parts away from rotating mower blades Do not step on end of deck 8600 14 Location Deck Carrier Frame Part Number 8600 14 Warning do not operate the machine with the deck tilted up 9804 1 Location Chassis Member Behind Transaxles Part Number 9804 1 Neutral Lock Lift and move into slot to unlock transmission and allow machine to freewheel 8600 2 Location Flex Coupler Guard in Front of ...

Page 21: ...arbox Cover Gear Drive Decks Only Part Number 8600 9 Tighten blade nuts on gear driven decks to 60 lb ft 81 N m 8600 12 Location Engine Part Number 8600 12 Warning carbon monoxide CO poisoning hazard CO emitted by a running engine can be deadly Do not operate indoors or in other enclosed areas Location Engine Shroud Part Number 5855 1 2 Location Rear Body Part Number 4107 13 1 Ground drive belt ro...

Page 22: ... A loose battery may cause damage to the case resulting in acid leakage and severe damage to the machine A hazard may be created by damage to critical working parts and safety systems CAUTION Important Battery Service Installation and Charging Tips for Electronic Fuel Injection Engines Do not allow the battery cables to touch opposing terminals When connecting battery cables attach the positive ca...

Page 23: ...battery DO NOT use water or any other liquid during initial activation 2 Remove the filler caps and carefully fill each cell until the electrolyte is just above the plates 3 After the battery is filled with electrolyte re place the filler caps and charge the battery Refer to the next section Battery Charging Battery Charging DANGER BATTERIESPRODUCEEXPLOSIVEGASES Charge the battery in a well ventil...

Page 24: ...vents are open Improper venting of the battery COULD cause a battery explosion Battery Clamp Secured by Wing Nut s Battery Terminal Battery Installation Battery Cover Two 2 10 24 Threaded Knobs Mount Cover Battery Cover Installation Mower Deck Assembly Deck Caster Wheels Installation 1 Remove the bolt and nut from each deck caster wheel fork 2 Fit a bearing cup on the outside of each wheel bearing...

Page 25: ...deflector 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 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 brack ets on the rear skirt of the ...

Page 26: ...aded Quick Disconnect Ring PTO Coupler Installation Tool 4 Reaching under the tractor slide the PTO coupler tube onto the deck drive shaft align arrow decals then install the coupler quick disconnect onto the tractor PTO drive shaft IMPORTANT When installing the DS52 or DS62 Mower deck make sure to retract the dolly wheel after mounting the deck on the tractor Grease Deck Support Arm s Arrows on S...

Page 27: ...of the deck and clip the counterweight springs to the receptacle on front of body Lower the deck and the seat panel to tension the springs Refer to Deck Counterweight Spring Installation photo 9 With the counterweight springs connected the weight on the deck caster wheels should be 15 to 25 Ib 6 8 to 11 3 kg this adjustment is preset at the factory If required the spring tension can be adjusted by...

Page 28: ...ure 2 Check the side to side level Rotate each blade sideways and measure the distance from blade tip to ground on each side If mea surements vary more than 1 8 in 3 mm add a washer shim 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 dis tance from blade tip to ground on the front and rear The rear of the...

Page 29: ...ine containing greater than 10 ethanol DO NOT use additives such as carburetor clean ers deicers or moisture removing agents DO NOT use gasoline blended with methyl alco hol F CHECK ENGINE CRANKCASE OIL LEVEL Check the engine crankcase oil level before use and after each 8 hours of continuous operation Refer to Checking Engine Crank case Oil Level on page 42 F CHECK AND SERVICE ENGINE AIR CLEAN ER...

Page 30: ...ck cleaning information DANGER Never operate cutter blades with deck in raised position because it is hazardous The tilt up deck can be secured in the raised position by unlocking the deck lock levers 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 deck lock levers after lowering the de...

Page 31: ...ch When starting the engine turn the key clockwise to the START position Do not hold the key in this position longer than 10 seconds If the engine does not start return the key to the OFF position for at least 60 seconds before making a restart attempt IMPORTANT Prolonged cranking can damage the starter motor and shorten battery life Release the key when the engine starts and it will return to the...

Page 32: ...wn indepen dent steering lever for both steering function and FORWARD REVERSE motion The FSC lever sets the maximum forward speed and also sets the forward position of the steering levers The steering levers operate only with a backward pulling movement of the lever which causes the drive wheel for that lever to first slow down stop and then reverse with a full backward lever stroke The levers are...

Page 33: ...m before further engine operation IMPORTANT Continued operation of the engine with a low oil pressure condition WILL cause severe engine damage 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 chassis notch the transaxles are released to permit free wheeling By releasing the arms and r...

Page 34: ...access Lifting Rear Body Optional Dump Bed Shown Hourmeter The hourmeter which is located on the right front of the body displays operating time accumulated when the PTO blade drive is engaged The hourmeter provides maintenance reminders after certain hours of operation The hourmeter screen will start flashing the reminder one hour prior to the recommended interval and will continue until one hour...

Page 35: ...round Speed Position Neutral Park Position BLADE CLUTCH PTO Neutral Park Position Intermediate Ground Speed Position Fast Throttle Position Idle Position Operating Controls Top View from Drivers Point of View The Forward Speed Control also Establishes the Neutral Park Position of the Steering Levers RIGHT WHEEL STEERING LEVER LEFT WHEEL STEERING LEVER FORWARD SPEED CONTROL LEVER FSC ...

Page 36: ...ng the engine should be checked before further crank ing Turn the key to the OFF position and allow a 60 second cool down period between starting attempts Failure to follow these guidelines can damage the starter motor and shorten battery life Consult your Walker dealer or authorized Kohler dealer for addi tional help ADJUSTING GROUND SPEED AND STEERING IMPORTANT If the DS52 or DS62 mower deck is ...

Page 37: ...ling on the steering levers especially when go ing downhill as this can lift the tractor tail wheel off the ground and set up a bucking motion due to operator overcontrol If bucking does occur immediately stop the bucking action by pulling the Forward Speed Control FSC lever into the NEU TRAL PARK position 4 The FSC may be adjusted forward for faster ground speed and backward for slower ground spe...

Page 38: ...steering le ver controlling the inside wheel into re verse for a smooth rolling turn one wheel roll ing forward while the other rolls backward Practice maneuvering the mower un til you can make it go exactly where you are aiming Remember for an emergency stop or in case of loss of control machine movement can always be stopped quickly by pulling the Forward Speed Control into the NEU TRAL PARK po ...

Page 39: ...RTANT DO NOT disengage the blade clutch with high engine speed above 1 2 throt tle since excessive brake action on the blade drive will cause premature wear of the brake WARNING A brake stops the cutter blades from free wheeling within five 5 seconds after dis engaging the clutch If the brake sys tem malfunctions and the blades do not stop within five 5 seconds the brake should be repaired or repl...

Page 40: ...ng Height Adjustment TRANSAXLE LOCKOUT IMPORTANT DO NOT TOW this mower faster than 2 mph 3 2 km h with the transaxle lockout engaged Towing can produce excessive internal pressure and damage the transaxle s To move the mower with the engine NOT running dead battery maintenance etc the transaxles need to be unlocked released 1 Raise the seat panel 2 Pull up on each transaxle lockout arm and move to...

Page 41: ... for the first pass and then make a second pass cutting to the desired height Use a slow setting on the FSC for trimming operations Make sure the mower is leveled properly for a smooth cut Refer to Deck Leveling on page 24 Use an alternating stripe mowing pattern 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 t...

Page 42: ...direc tion The maximum recommended slope operating angle is 15 degrees or 27 grade 8600 9 60 lb ft 81 N m 8600 14 14 in 15 52 in Maximum Recommended Slope Do Not Operate on Steep Slopes Maximum Recommended Slope DANGER Do not mow or drive the tractor within 5 feet 1 5 meters of an embankment or retaining wall with drop off 5 FT MINIMUM No Driving Zone ...

Page 43: ...d never be tilted forward with the deck in the tilt up position This can cause the deck to unhook from the tractor and fall with considerable force poten tially 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 movement This will pre...

Page 44: ...eck Air Filter Element x 51 Change Engine Crankcase Oil x 43 Check Regap Spark Plugs x 58 Change Engine Oil Filter x 43 Replace Fuel Filter x 62 Change Transaxle Oil and FilterΔ x 48 Replace Air Filter Element and Safety Filter x 51 Check Adjust FSC Friction Lock x 59 Check Fuel Lines and Clamps x 58 Service Engine Starter x 58 Check PTO U Joints for Wear Looseness x 58 Service Battery x 55 Check ...

Page 45: ...ine shroud to inspect and clean cylinder head cool ing fins Check performance of the cooling system by starting the engine holding a hand adjacent to the cylinder head and feeling the cooling airflow DANGER Make sure to keep hands clear of exhaust pipe muffler and moving parts when checking airflow Operate the engine at full speed when mowing This allows the engine to produce full horsepower and m...

Page 46: ...mportance of checking and maintaining the proper crankcase oil level cannot be overemphasized Check the oil level BEFORE EACH USE 1 Park the mower on a level surface 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 the engine running 2 Before removing ...

Page 47: ...s 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 clean oil to the rubber gasket on the replacement oil filter IMPORTANT Use ONLY oil filters from the en gine manufacturer Kohler 12 050 01 After market oil filters may not seal properly and or may not have the correct pressure relief valve for proper lubrication 7 Instal...

Page 48: ...ck Lubrication on page 45 for the DS52 or DS62 deck with belt driven blades Refer to Mower Deck Spindle Lubrication on page 45 for all mower decks with belt driven blades On gear driven decks the mower deck gearboxes tee gearbox and blade drive gearboxes are con nected as a unitized assembly and oil flows freely between them The gearboxes are permanently lubricated oil filled and sealed requiring ...

Page 49: ... Lubricate the loca tions shown in the Gearbox Dol ly Wheel and U Joint Lubrication photo and check and maintain oil in the belt drive gearbox 1 Check the oil level in the belt drive gearbox ev ery 100 hours or sooner if a visible oil leak has developed With the deck in the normal oper ating position remove the level plug in the side of the gearcase Add SAE E P Extreme Pres sure 80W 90 API GL 5 ge...

Page 50: ...Control Pivot Oil 1 19 Throttle Control Cable Ends Oil 2 20 Ground Drive Idler Pivot Grease 1 Ident Lubrication No No Location Type Places 21 Transaxle Oil Reservoir Oil 20W 50 1 22 Tail Wheel Caster Fork Pivot Grease 2 23 RearAxle Pivot Grease 1 24 Engine Dipstick Oil Fill Oil 1 25 PTO Belt Tightener Idler Pivot Grease 1 26 Parking Brake Clevis Oil 2 27 Body Latch Pivot Oil 4 28 Parking Brake Lev...

Page 51: ...aintenance Instructions Lubrication 47 Chassis and Deck Lubrication Points DM48 Shown 8600 2 8600 12 9804 1 9804 1 1 1 2 2 11 12 7 4 4 5 13 16 17 21 22 18 19 15 24 24 23 22 26 28 27 26 15 4 5 4 12 19 25 14 20 ...

Page 52: ...ansion reservoir cap to allow venting Using a 1 4 in hex wrench remove the plug on the lower inside of each transaxle allowing the oil to drain 2 Remove the oil filter guard remove and re place the oil filter using an oil filter wrench Tighten filter by turning filter 3 4 to 1 turn after gasket contacts the filter base surface Rein stall the oil filter guard Refer to Transaxle Oil Drain Plug Filte...

Page 53: ...inutes 10 If the transaxles sound noisy or have poor steering response there may be air trapped in the transaxles Follow purge instructions below 11 If oil needs to be added refer back to steps 5 10 12 To purge air from transaxle raise tractor and block with tires off the ground With engine running slowly move Forward Speed Control forward and backward 5 to 6 times Turn off engine and check oil le...

Page 54: ...age from overheating Cylinder Head Cooling Fins It is essential for performance and longevity of the air cooled engine to keep the cylinder head cooling fins clean and free of obstruction After every 8 hours of operation check the performance of the cooling system by starting the engine holding a hand adjacent to the cylinder head and feeling the cooling airflow If there is little or no airflow cl...

Page 55: ...ducing the possibility of dust leaks due to improper filter installation Intake design internal baffling and a dust ejection valve provide dust separation and automatic precleaning action Dai ly or frequent servicing of the air cleaner is not required Use the air filter restriction gauge on the air cleaner outlet to indicate when the air filter needs servicing a yellow indicator will show when the...

Page 56: ... is removed 3 Discard the filter element if excessive air flow restriction has been indicated by the air filter restriction gauge and proceed to Step 6 Clean the filter element by gently tapping on a flat hard surface If excessive restriction still exists after cleaning the element it should be replaced NOTE Use care when cleaning the filter element The filter element and or seal sur face may be d...

Page 57: ...r Element Replacement 10 Install the cover with the word TOP properly oriented to the top of the canister Give the cover a slight twist as it reaches the canister to make sure the tab inside the cover goes into a slot otherwise the cover will not fit properly Make sure both the top and bottom cover latches are securing the cover in place Dust Ejection Valve Cover Latch Cover Latch Orient to Top of...

Page 58: ...TION Do not operate machine with deck tilt up pivot joint unlocked Transaxle Housing Keeping the housing of the transaxles clean and free of obstruction is essential to avoid overheat ing the transaxle fluid and shortening transaxle life The housing should be checked every 100 hours and cleaned if necessary To clean the housing use compressed air and or a pressure washer Pay close attention to any...

Page 59: ...ge to the machine A hazard may be created by damage to critical working parts and safety systems CAUTION Important Battery Service Installation and Charging Tips for Electronic Fuel Injection Engines Do not allow the battery cables to touch opposing terminals When connecting battery cables attach the positive cable to positive battery terminal first followed by negative cable to negative battery t...

Page 60: ... to 13 mm above the plates Tire Pressure Inflate tires to pressures shown below Deck Caster Wheel 20 PSI 137 kPa Drive 15 PSI 103 kPa Tailwheel 20 PSI 137 kPa If equipped with optional pneumatic tires Wheel Nut Torque Check the eight 8 nuts that mount the drive tires Every 100 hours they should be torqued to 75 to 85 lb ft 102 to 115 N m Sharpen Mower Blades Check mower blade s for straightness sh...

Page 61: ...f a blade is generally maintained by removing an equal amount of material from each end of the blade when sharpening Blade Balancer Blade Balanced on Magnetic Wall Mounted Balancer 7 Mount the blade with wing tips pointing up into the housing For gear driven decks reinstall the blade washer lock washer and nut Tighten the nut to 60 lb ft 81 N m For belt driven decks reinstall the spacer if applica...

Page 62: ... five 5 seconds after disengagement of the clutch If the brake system malfunctions blades do not stop in five 5 seconds the electric clutch brake assembly will need to be repaired or replaced Contact your Walker Dealer for this service PTO U Joints The PTO U joints should be inspected yearly for looseness and wear If either is noticed the respective shaft or tube should be replaced A worn U joint ...

Page 63: ...he FSC friction lock needs to be adjusted refer to Adjustments for Transmission Control Step 6 Forward Speed Control Friction Adjustment on page 66 Transmission Control Setting On a yearly interval or when an out of adjustment condition is observed check the transmission control for proper function as follows Neutral Park With the mower parked on level ground start and run the engine first at idle...

Page 64: ...s Drive Belts There are two 2 individual belts on the machine Engine PTO Drive Belt Ground Drive Belt The belts may be removed and replaced using the following procedures Remove Belts 1 Lift up on the belt to move the spring loaded idler pulley and loosen the belt 2 Slide the belt off the pulleys and remove the belt Install Belts Reverse the removal procedure Start with posi tioning the belt aroun...

Page 65: ...acing and Repairing Engine PTO Drive Belt Ground Drive Belt LH Transaxle Drive Pulley Belt Tightener Idler Pulley RH Transaxle Ground Drive Belt Engine PTO Belt PTO Belt Tightener Idler Pulley Fixed Idler Pulley PTO Pulley Electric Clutch ...

Page 66: ... from filter and pull fuel lines off filter 2 Replace filter making sure that the arrow on the filter is aligned with the fuel flow through the filter 3 Verify that the fuel lines and clamps are se curely attached and that no fuel leaks are present Blade Overload Shear Bolts NOTE Blade shear bolts are not used on belt driven decks On gear driven decks each cutting blade is keyed to the blade hub b...

Page 67: ...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 damage Check the blades for straightness by marking blade tip position inside the deck housing and then rotating the opposite end of the blade to the same position and comparing If the differ ence in blade ...

Page 68: ...e an other If they are not equal adjust accord ingly 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 Levers should sit parallel to each other Lever Alignment 2 Adjust the position of the RH lever by turning the stop bolt in the Speed Control Actuator in or out Tur...

Page 69: ...clockwise just until the wheel stops and then begins to move in reverse Rotate the control rod back counterclockwise half the number of turns required to make the wheel go from moving forward to reverse The transmission is now centered in the neutral window Tighten the jam nut on the ball joint and repeat the same procedure on the other transmission 5 Turn off the engine and then lower the drive t...

Page 70: ...onfirm that straight tracking is being achieved at maximum for ward speed FSC lever in full forward posi tion T Handle Hex Wrench Maximum Speed Adjust ment Screw Maximum Speed Tracking Adjustment Shown with Parts Removed for Clarity Step 6 Forward Speed Control Friction Adjustment Pull Steering Levers Back to Check Friction Lock FSC Full Forward Position FSC Friction Adjustment Test Checking Frict...

Page 71: ...used for height adjust ment should sit flush on the washers above the deck pin bushing On a level surface if any pin is sticking up likely the front pins tighten the oppo site side or loosen the same side to lower the pin Adjustments are made by loosening the jam nut and tightening or loosen ing the set screws on the Deck Mount Pivot Brack ets Retighten the jam nut when the adjustment is complete ...

Page 72: ..._________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ _________________________________________...

Page 73: ..._________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ _________________________________________...

Page 74: ...70 ...

Page 75: ...ance improper use or abuse of 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 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 ar...

Page 76: ...WALKERMFG CO 5925E HARMONYROAD FORTCOLLINS CO80528 970 221 5614 FORM NO 032620 PRINTED IN USA www walker com 2020 WALKER MFG CO ...

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