Operator’s Manual 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: 128442 Effective Date: 05.05.
Foreword Thank you. . .for purchasing a Walker mower. Every effort has been made to provide you with the most reliable mower on the market, and we are sure you will be among our many satisfied customers. If for any reason this product does not perform to your expectations, please contact your local dealer. Every customer is important to us. Your satisfaction is our goal. Please. . .
Table of Contents General Information_________________ 1 Operating Instructions______________ 25 HIGHLIGHTED INFORMATION______________ GLOSSARY_____________________________ IDENTIFYING NUMBER LOCATIONS_________ ENGINE SERIAL NUMBER LOCATION________ SERVICING OF ENGINE AND DRIVETRAIN COMPONENTS_______________ CONTROL IDENTIFICATION, LOCATION, AND FUNCTION ______________ Ignition Switch________________________ Engine Choke_________________________ Engine Throttle________________________ Forward Speed Contr
Table of Contents Maintenance Instructions___________ 44 MAINTENANCE SCHEDULE CHART________ IMPORTANT TIPS FOR CARE OF THE SUBARU ENGINE________________________ Fuel System__________________________ Starting/Stopping______________________ Cooling System_______________________ Air Cleaner System_____________________ Oil__________________________________ LUBRICATION__________________________ Engine Oil____________________________ Engine Break-In Oil____________________ Checking Engine Crankcase Oil Level_____
General Information HIGHLIGHTED INFORMATION Walker Manufacturing recommends that any service requiring special training or tools be performed by an authorized Walker Mower dealer. There are several general practices to be aware of in the area of safety. Most accidents associated with the operation or maintenance of a Walker Mower are caused by disregarding basic safety precautions or specific warnings. Such accidents, in most cases, can be prevented by being aware of the dangers present.
General Information Serial Number Tractor Serial Number Location Serial Number SERVICING OF ENGINE AND DRIVETRAIN COMPONENTS The detailed servicing and repair of the engine, transaxles and gearboxes are not covered in this manual. Only routine maintenance and general service instructions are provided. For the service of these components during the limited warranty period, it is important to find a local, authorized servicing agent of the component manufacturer.
Specifications MODEL S14 ENGINE Manufacturer/Model Subaru Robin, EX40, 1 Cyl. (Air-Cooled) Displacement cu. in. (cc) 24.65 (404) Max. Power HP (kW) 14.0 (10.4) @ 3600 RPM Governed RPM 3600 Max. Torque lb·ft (N·m) 19.9 (27.0) @ 2400 RPM Idle RPM 1300 Spark Plug Type NGK BPR5ES Spark Plug Gap in. (mm) .030 (0.75) Crankcase Capacity qt (L) 1.35 (1.
Specifications MODEL S14 TRANSMISSION (continued) Final Drive Transaxle Direct to Drive Wheel Transmission Fluid Factory Service 20W-50 Multi-Viscosity Motor Oil (Minimum SL Grade Oil) Transmission Oil Capacity fl oz (ml) 79 (2336) Transmission Cooling Cooling Fan Mounted on Drive Pulley Oil Filter Hydro-Gear® P/N 52114 (Walker P/N 2026-6) Ground Travel Speed Forward MPH (km/h) Reverse MPH (km/h) 0-6.5 (0-10.
Specifications MODEL S14 DIMENSIONS (Tractor and Mower) Length in. (cm) Tractor Only 63.75 (162) Tractor Wheel Base 43 (109) Tractor with Tilted Deck (Approximate) 77 (196) Tractor with 36" Collection Deck (DC36R-1) 87 (221) Tractor with 42" Collection Deck (DC42-1) 88.5 (225) Width in. (cm) Tractor Only (Outside Tire) 36 (91.5) Tractor with 36" Collection Deck (DC36R-1) 37.25 (95) Tractor with 42" Collection Deck (DC42-1) 43.25 (110) Height in. (cm) Tractor 46.
Specifications MODEL S14 MOWER DECK Recommended Cut Width 36 or 42 in. (91 or 107 cm) (Collection, SD, Mulch) Cutting Height 1 to 4 in. (2.5 to 10 cm) in 1/2 in.
Component Identification NOTE: Control Identification shown in Operating Instructions section. Grass Handling System 7.
Component Identification Catcher Door Gas Spring (Not Visible) Removable Grass Catcher Screen (Not Visible) Catcher Door Catcher Lift / Dump Handle Catcher Air Exhaust Catcher Door Handle Anti-Scuff Roller Left Hand Drive Wheel Muffler Tailpipe Rotating Engine Screen Rear View and Left Side View 8 Tailwheel Fork and Wheel
Component Identification Negative (-) Battery Cable Battery Positive (+) Battery Cable Air Intake Hose Donaldson Air Cleaner Tailpipe Air Cleaner Cover Fuel Tank Fuel Tank Cap Muffler Heat Shield Parking Brake Lever PTO Clutch Lever GHS Blower RH Transaxle Lockout Arm LH Transaxle Lockout Arm RH Transaxle LH Transaxle Neutral Safety Switch Top View (Body Raised) 9
Safety Instructions - Before Operating Pay particular attention to any information labeled DANGER, WARNING, CAUTION, IMPORTANT, and NOTE in this manual. ), read, When you see the Safety Alert Symbol ( understand, and follow the instructions. Failure to comply with safety instructions may result in personal injury.
Safety Instructions - Before Operating 6. Do not wear loose fitting clothing that could get caught in moving parts. Do not operate this machine while wearing shorts; always wear adequate protective clothing, including long pants. Wearing safety glasses, safety shoes, and a helmet is advisable and required by some local ordinances and insurance regulations. 7. Prolonged exposure to loud noise can cause impairment or loss of hearing.
Safety Instructions - Operating 1. Operate the mower only in daylight or in good artificial light with good visibility of the area being mowed. 2. Sit on the seat when starting the engine and operating the machine. Keep feet on the deck footrests at all times when the tractor is moving and/or mower blades are operating. Never operate the tractor without a deck or imple ment installed. 3. For a beginning operator, learn to steer (maneuver) the tractor with a slow engine speed ation.
Safety Instructions - Operating 14. The maximum recommended slope operating angle is 15 degrees or 26% grade. When operating the machine on a slope, reduce speed and use caution to start, stop, and maneuver. To prevent tipping or loss of control of the machine, avoid sharp turns or sudden changes in direction. Do not operate the machine on a slope greater than 15 degrees. 15. Never adjust cutting height with the engine running.
Safety Instructions - Maintenance 1. To prevent accidental starting of the engine when servicing or adjusting the machine, remove the key from the ignition switch and disconnect the spark plug wire. 2. To reduce fire hazards, keep the engine free of grass, leaves, excessive grease, and dirt. 3. a. Make sure the battery charger is unplugged before connecting or disconnecting cables to the battery. Keep all nuts, bolts, and screws tight to ensure the machine is in a safe, working condition.
Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS 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 Decal Part Number is listed below and in the Parts Manual. 1. 1. 8600-12 Location: Top of Fuel Tank Part Number: 8600-12 2. 1. 8600-4 Location: Adjacent to Blower Discharge Chute through Body Part Number: 8600-4 1. 2.
Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS 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 Decal Part Number is listed below and in the Parts Manual. 1. 2. 8600-28 Location: Each End of Mower Deck Part Number: 8600-28 1. 2. Location: Top of Fuel Tank Part Number: 5082-5 Warning – thrown object hazard.
Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS 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 Decal Part Number is listed below and in the Parts Manual. 1. 1. 2. 3. 2. 4. 5. <15° 6. 1. 7. 2. 3. 4. 8. 5. Location: LH Fender Part Number: 8600-27 1. 2. 3. 4. 5. 6. 7. 8.
Assembly Instructions SETUP INSTRUCTIONS Dry Battery Service Walker Mowers are shipped partially assembled to our distribution network, and are typically assembled by the selling dealer. For any additional assembly besides the following, contact your Walker dealer. DANGER Activating a battery can be dangerous. The battery should be taken to a reliable service station, battery store, or power equipment dealer where a trained technician can activate the battery safely.
Assembly Instructions Battery Charging DANGER BATTERIES PRODUCE EXPLOSIVE GASES • Charge the battery in a well-ventilated area, so that gases produced while charging can dissipate. Install the battery in the mower as shown in Battery Installation photo. Connect the positive (+) first and then the negative (-) cable to the proper battery terminal [red cable and boot connects to the Positive (+) terminal].
Assembly Instructions 4. Tighten the bolt and nut until the axle spacer tube bottoms against the inside of the wheel fork (will not turn) while the wheel and spacer washers (if used) spin freely without binding. Axle Spacer Tube Deck Discharge Deflector Shield Installation (Side Discharge Models Only) Attach the side discharge deflector shield using two (2) 3/8-16 x 1-1/4 in. bolts, 3/8-16 ESNA nuts, and 3/8 in. wave spring washers. The wave washers fit between the two hinging surfaces.
Assembly Instructions PTO Connection Attach Spring Arrows on Shaft and Tube (Used to Align When Sliding Together) Roller Wheels Tilt-Up Spring and Roller Wheel Installation on Rear Discharge Deck PTO Shaft Connection 4. Mower Deck 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.
Assembly Instructions Deck Leveling 1. 2. Check the side-to-side level. Rotate each blade sideways and measure the distance from blade tip to ground on each side. If measurements 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 distance from blade tip to ground on the front and rear. The rear of the blade should be 1/8 to 1/4 in.
Assembly Instructions PREOPERATING CHECKLIST Before operating the mower for the first time, and as a routine before daily operations, it is important to make sure the mower is properly prepared and ready for operation. The following is a list of items to be checked. (For a mower with frequent operation, some of these items will not need to be checked every day, but the operator should be aware of the condition of each.) For proper fuel and lubricants refer to Specifications.
Assembly Instructions CHECK TIRE PRESSURE Deck Caster Wheel = 20 PSI (137 kPa) Drive = 15 PSI (103 kPa) Tailwheel = 20 PSI (137 kPa) CHECK AND CLEAN GRASS BUILDUP UNDERNEATH MOWER DECK (and inside GHS blower, if equipped) Refer to CLEANING the GHS Blower in Mainte nance Instructions for blower cleaning information. DANGER Never operate cutter blades with deck in raised position because it is hazardous.
Operating Instructions CONTROL IDENTIFICATION, LOCATION, AND FUNCTION CAUTION Before operating the mower, become familiar with the location and function of all operator controls. Knowing the location, function, and operation of these controls is important for safe and efficient operation of the mower. Ignition Switch The ignition switch is located on the right front of the body and is used to start and stop the engine.
Operating Instructions Engine Throttle Steering Levers The throttle control lever (red knob) is located on the left side of the seat and is used to control engine speed. Moving the lever forward toward the FAST position increases engine speed; moving it backward toward the IDLE position decreases engine speed. Each drive wheel is controlled by its own independent steering lever, for both steering function and FORWARD/REVERSE motion.
Operating Instructions Parking Brake Transaxle Lockout Arms The parking brake functions by locking a detent arm to a cog inside the transaxle. Moving the lever FORWARD engages the parking brake; moving the lever BACKWARD releases the brake. The transaxle lockout arms disengage the transaxles. 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 freewheeling.
Operating Instructions Hourmeter The hourmeter, which is located on the right front of the body, displays operating time accumulated while the PTO (blade drive) clutch 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 after the recommended interval (two hours). The hourmeter does not have a manual reset function.
Operating Instructions The Forward Speed Control also Establishes the Neutral-Park Position of the Steering Levers LEFT WHEEL STEERING LEVER FORWARD SPEED CONTROL LEVER (FSC) RIGHT WHEEL STEERING LEVER Forward Position (No Control Change) Full Forward Ground Speed Position Neutral-Park Position Intermediate Ground Speed Position Reverse Drive Wheel Motion Position Neutral-Park Position Fast Throttle Position <15° 1. 2.
Operating Instructions IMPORTANT: DO NOT crank the engine continuously for more than 10 seconds at a time. If the engine does not start, 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 engine dealer for additional help.
Operating Instructions WARNING Beginning Recommendations are: ♦ Learn operation of the mower in an open area away from buildings, fences, and ob structions. Learn operation on flat ground BEFORE operating on slopes. If either of the transmission drive belts break during slope operation, the machine will freewheel down the slope. To maintain control, immediately (1) Release the steering levers and simultaneously (2) Move the FSC to the NEUTRAL-PARK position.
Operating Instructions 4. The FSC may be adjusted forward for faster ground speed and backward for slower ground speed. When mowing, ground speed should be adjusted to match the load on the cutter blades, i.e., as the engine pulls down in heavy cutting, pull back on the FSC lever to reduce ground speed. Adjusting ground speed helps maintain a balance between engine power and blade speed for high-quality cutting action. 5.
Operating Instructions STOPPING THE MACHINE 1. Pull the steering levers to the NEUTRAL-PARK position and then move the FSC lever backward to the NEUTRAL-PARK position. 2. Slow the engine down by moving the throttle to the IDLE position. 3. Disengage the blade clutch. Engaged Position NOTE: Reducing engine speed prior to disengaging the blade clutch will reduce wear on the brake band and brake drum, increasing the life of these components.
Operating Instructions ADJUSTING CUTTING HEIGHT 3. WARNING The engine must be stopped before ad justing cutting height. Disengage the blade clutch (PTO), stop the engine, and remove the ignition key. Wait for all movement to stop before getting off the seat. Hydro Lockout Arm Cutting height is adjusted by positioning the four (4) retainer hitch pins in a series of seven vertical holes on the deck support pins.
Operating Instructions RECOMMENDATIONS FOR MOWING DANGER Do not mow around overhanging tree branches or bushes at the same height as the operator’s torso and head where inadvertent contact may cause injury. • When mowing, operate the engine at full throttle for the best cutting action and performance of the grass handling system (GHS). Mowing with a lower engine RPM causes the mowing blade to not cut clean and tear the grass. The engine is designed to be operated at full speed.
Operating Instructions • When using a side discharge mower deck, the side discharge deflector shield must not be removed and must be kept in the lowest possible position to deflect grass clippings and thrown objects downward. Orient the side discharge away from side walks or streets to minimize cleanup of clippings. When mowing close to obstacles, orient the side dis charge away from obstacles to reduce the chance of damage to property by thrown objects.
Operating Instructions RECOMMENDATIONS FOR TILT-UP DECK OPERATION/TRANSPORT To avoid potential deck and/or tractor damage while using the tilt-up deck, the following recommendations are offered: • Do not move the tractor with the deck in the tiltup position since both the roller wheels (on the back of the deck) and the GHS discharge chute may be damaged by moving the tractor. The tilt-up configuration should only be used when the tractor is parked.
Operating Instructions GRASS HANDLING SYSTEM (GHS) GHS Model Only Grass Catcher Exhaust Screen (Removable) Grass-Pak® Vane Switch Catcher Door Spring (Not Visible) Actuator Rod Powerfil ® Drive Motor Catcher Air Exhaust “Full” Signal Horn PTO Clutch PTO and Blade Gear Drive Catcher Door Shear Pin (If Equipped) Powerfil ® Delivery Spout Shear Bolt (Gear Driven Decks Only) Dump Handle Catcher Chute Body Chute Assembly Blower Deck Discharge Chute Rear Discharge Mower Deck GHS Flow and Components
Operating Instructions General Information The Grass Handling System (GHS) consists of a rear discharge mower deck connected to a 12.5 in. (32 cm) blower and a rear mounted grass catcher with 7.0 bushel (246 liters) capacity. The GHS blower operates any time the mower blade clutch is engaged and moves grass through the rear discharge deck chute into the grass catcher. Blower airflow is exhausted out the back of the grass catcher, through a filtering screen.
Operating Instructions Clogging Checklist In case of clogging, there will be a distinct change in the sound of the blower, i.e., the blower sound will stop. Also, the mower deck will begin to leave a trail of grass clippings. When this occurs, stop the engine, disconnect the spark plug wire, and make sure all movement has stopped before attempt ing to unclog. Blades Must Operate at Right Angles (90 Degrees) FORWARD DANGER NEVER place hands under the mower deck or in the GHS blower discharge chute.
Operating Instructions • Check the blower wheel for bent blades and excessive clearance between the blade tip and the blower housing. A clearance greater than 1/8 in. (3 mm) will cause a significant loss of blower performance. • Check the blower discharge chute into the grass catcher for smoothness and freedom from ob struction. • Check the elbow inside the grass catcher for a buildup of material in the radius of the elbow.
Operating Instructions Cleaning the GHS Exhaust Screen CAUTION To remove the grass catcher screen for cleaning, open the catcher door, push forward and pull down on the grass catcher screen knobs (on either side of the screen), and slide the screen out. Use a high pressure washer or water spray and brush to clean the screen. Keeping the catcher exhaust screen clean and open is essential to good performance of the catching system. In some mowing conditions, e.g.
Operating Instructions Using the Dump Bag 1. Open the back door by lifting on the door handle. 2. Orient the dump bag with one of the handle straps on the bag opening facing up. Catcher Dump Handle Tailgate Door Handle Hook Bag on Bumper Dumping Catcher into Dump Bag 6. Positioning Dump Bag on Catcher 3. Hook the bottom of the bag over the rear bumper while lifting on the handle strap. 4.
Maintenance Instructions CAUTION Maintenance procedures requiring special training or tools should be performed by a trained technician.
Maintenance Instructions IMPORTANT TIPS FOR CARE OF THE SUBARU ENGINE Fuel System • Fuel must be clean - free from water, dirt, and or ganic material. • Clean the fuel filter on a regular basis and when contamination is suspected or found in the fuel. Starting/Stopping • Start engine with the throttle advanced off idle (1/4 to 1/2 throttle). This will aid starting, especially in cold weather. • Keep the battery fully charged.
Maintenance Instructions LUBRICATION LUBRICATION IMPORTANT: DO NOT operate engine without a sufficient oil supply in the crankcase. DO NOT operate with oil level below the LOW (L) mark or above the FULL (H) mark on the dipstick. WARNING DO NOT attempt to lubricate the machine with the engine running. Disengage the PTO clutch, shut off the machine, and re move the ignition key. NOT SCREWED IN Filler Plug Proper lubrication is an important maintenance pro cedure.
Maintenance Instructions Changing Engine Crankcase Oil LUBRICATION 5. Change the engine crankcase oil after every 50 hours of operation as follows: 1. Park the mower on a level surface with the engine stopped. The engine oil should be warm before draining. If not warm from operation, start the engine and run a few minutes to warm the oil. 2. Before removing the dipstick, clean the area around it to keep any dirt or debris out of the engine. 3.
Maintenance Instructions Ident Lubrication No.
Maintenance Instructions 1 LUBRICATION 1 2 2 7 8 8 6 4 5 4 4 5 4 10 10 11 9 12 13 14 23 & 27 14 12 22 & 26 15 25 16 17 18 24 23 19 20 22 21 21 Chassis and Deck Lubrication Points (DC36R Shown) 49
Maintenance Instructions LUBRICATION Mower Deck Gearbox Lubrication On gear driven decks, the mower deck gearboxes (tee gearbox and blade drive gearboxes) are connected as a unitized assembly, and oil flows freely between them. The gear boxes are permanently lubricated (oil filled) and sealed requiring no scheduled lubrication.
Maintenance Instructions LUBRICATION Transaxle Oil and Filter Change 7. Change the transaxle oil after the initial break-in period of 75-100 hours. Thereafter, change oil every 400 hours of operation as follows: If the transaxles sound noisy or have poor steering response, there may be air trapped in the transaxles. Follow purge instructions below. 8. If oil needs to be added refer back to steps 4-7. 1. Thoroughly clean the exterior of the transmission housing before servicing.
Maintenance Instructions CLEANING IMPORTANT: Use only Donaldson air filter ele ments for replacement (Donaldson P822686 or Walker 5090-1). Aftermarket filters may not seal properly or filter efficiently. CLEANING CAUTION If a pressure washer is used on the exposed working parts, avoid water on the electrical parts and the engine cooling system.
Maintenance Instructions Inspect the paper element after every 100 hours of service and replace the element and safety filter yearly (or when dirty or damaged). More frequent replacement may be required when operating in extremely dusty conditions. Service the air cleaner as follows: 1. 2. 3. CLEANING 7. Check the outside surface of the outlet tube for smoothness and cleanness (this is the sealing surface). 8.
Maintenance Instructions Cover Latch Dust Ejection Valve Orient to Top of Canister CLEANING Fuel Filter Clean and inspect the fuel filter screen after every 50 hours of service. Replace if damaged. Service the fuel filter as follows: Fuel Shut-Off Valve Cover Latch Proper Orientation of Air Cleaner Cover 10 Check the air intake hose for cuts, nicks, cracks, etc., and the hose clamps for tightness.
Maintenance Instructions Engine Cooling System Cooling Air Intake Screen CLEANING NOTE: The planned maintenance schedule calls for cleaning the cylinder head cooling fins yearly or every 300 hours as a minimum. To prevent engine overheating and possible engine damage, clean grass clippings, chaff, and dirt from the rotating engine cooling air intake screen after every 8 hours of operation. In certain mowing conditions (dry grass, leaves, tree “cotton”, etc.
Maintenance Instructions Grass Buildup in Mower Deck Housing CLEANING 3. DANGER NOTE: If the buildup is severe, it may be easier to clean the deck by removing the deck assembly from the tractor and standing the deck assembly on its “nose”. Before raising or removing the mower deck for cleaning, stop the engine, remove the ignition key, and disconnect the spark plug wire. 1.
Maintenance Instructions Transaxle Housing CLEANING/ CHECKING/SERVICING CHECKING/SERVICING Keeping the housing on the transaxles clean and free of obstruction is essential to avoid overheating the transmission fluid and shortening transmission 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 oily dirt build up on the transaxle housings. This may be the result of an oil leak.
Maintenance Instructions 3. Replace filler caps. IMPORTANT: DO NOT overfill the battery. Electro lyte will overflow through the vent tube onto parts of the machine and WILL result in severe corrosion. Cleaning the Terminals If battery terminals are corroded, remove battery from the mower. Using a wire brush, remove corro sion with a solution of one part baking soda and four parts water. Rinse with clean water.
Maintenance Instructions CHECKING/SERVICING 6. WARNING DO NOT try to straighten a blade that is bent. NEVER weld a broken or cracked blade. ALWAYS replace with a new blade to assure safety. 4. If the blade cutting edge is dull or nicked, it should be sharpened. Remove blades for sharpening by grasping the end of the blade using a rag or a thick, padded glove, while loosening and removing the nut, lock washer, and flat washer that mounts the blade. 5.
Maintenance Instructions Drive Belts Raise the body and inspect the condition of the three (3) drive belts after every 25 hours of operation -engine, PTO drive, and ground drive. If the belts show signs of cracking or deteriorating, the belts should be replaced. Refer to REPLACING/REPAIRING the Drive Belts in this section. CHECKING/SERVICING Blade Brake Action WARNING It is important to check and maintain blade brake action for safe operation of the machine.
Maintenance Instructions Safety Switch System WARNING It is important to check and maintain the safety switch system for safe operation of the machine. CHECKING/SERVICING Forward Speed Control Friction Lock The FSC friction lock is designed to hold the selected forward travel speed when the steering levers are moved and yet the friction is not too heavy to make moving the FSC control difficult (too much friction). The procedure for checking the FSC friction lock is as follows: 1.
Maintenance Instructions REPLACING/REPAIRING REPLACING/REPAIRING Drive Belts There are three (3) individual belts on the machine: DANGER To prevent accidental starting of the engine when replacing parts or repairing the machine, remove the key from the ignition switch and disconnect the spark plug wire. • Engine Belt • PTO Drive Belt • Ground Drive Belt The belts may be removed and replaced using the procedures described on the following pages.
Maintenance Instructions REPLACING/REPAIRING Engine Belt 1. To remove the engine belt: a. Roll the belt off the pulleys and remove the belt, then slowly release the idler. b. Relax belt by depressing idler arm. Compound Pulley Idler Pulley Engine Belt Push Idler Pulley to Relax Belt Tension Spring Belt Tightener Arm Engine Pulley Engine Belt (Disengaged) 2. To replace the engine belt: a. Reverse the removal procedure to replace the engine belt.
Maintenance Instructions REPLACING/REPAIRING PTO Drive Belt 1. To remove the PTO drive belt: a. b. With the PTO clutch disengaged, roll the belt off the idler pulley and remove the belt. Remove the engine belt, as described in previous section. PTO Drive Belt Compound Pulley Push Actuator Pulley to Relax Belt PTO/Clutch/Brake Actuator Arm PTO Drive Pulley PTO Drive Belt (Disengaged) 2. To replace the PTO belt: a. Install the PTO drive belt by reversing the removal procedure.
Maintenance Instructions REPLACING/REPAIRING Ground Drive Belt 1. To remove the ground drive belt: a. Slide belt off pulleys, then slowly release the idler. b. Raise the spring-loaded idler to relax belt. Raise Idler Pulley to Relax Belt Transmission Drive Pulley Hydrostatic Drive Pulley Ground Drive Belt Idler Pulley Hydrostatic Drive Pulley Ground Drive Belt Assembly (Disengaged) 2. Reverse the procedure to install the ground drive belt.
Maintenance Instructions REPLACING/REPAIRING Blade Overload Shear Bolts PTO Shear Pin (If Equipped) NOTE: Blade shear bolts are not used on belt driven decks. 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 primary shock protection in case of blade impact and will normally shear before the individual shear bolts on the blade hub.
Maintenance Instructions Mower Blades REPLACING/REPAIRING WARNING Mower blades are removed and remounted as described in Sharpen Mower Blades instructions (refer to CHECKING/SERVICING in this section).
Maintenance Instructions ADJUSTMENTS 2. ADJUSTMENTS Transmission Control IMPORTANT: The proper adjustment of the transaxle control stops is essential for efficient operation and life of the transaxle. These stops are properly adjusted at the factory and should only require read justment if the transaxle or related control linkage is removed or changed. Adjust the position of the RH lever by turning the stop bolt in the Speed Control Actuator in or out.
Maintenance Instructions ADJUSTMENTS Step 2 - Steering Handles Adjustment Step 3 - Neutral Position Adjustment 1. 1. An adjustment range of approximately 3 in. (76.2 mm) is available on the steering handles the han dles can be adjusted forward or aft depending on the arm length of the operator. The handles can be adjusted by loosening the locknut at the pivot point and the locknut holding the handle in position in the adjustment slide.
Maintenance Instructions 2. Securely block the tractor up so the drive tires are off the ground. 3. Adjust the tracking adjustment nuts at the front of both control rods so that 2 or 3 threads are visible, then loosen the jam nuts on the ball joints at the back of the control rods. ADJUSTMENTS WARNING The following adjustments are made with the engine running. Keep all body parts and tools away from rotating and hot components, and secure all loose clothing. Control Arm Control Rods 4.
Maintenance Instructions ADJUSTMENTS IMPORTANT: After tracking adjustments are complete, confirm that there is at least one (1) thread visible on both control rods past the tracking adjustment nuts. Step 4 - Full Forward Speed Adjustment 1. Move the FSC to the full FORWARD speed position. 2. Raise the body. The maximum speed tracking adjustment set screw in both transmission control arms should not be contacting the limit stud on the transaxle.
Maintenance Instructions ADJUSTMENTS Step 7 - Forward Speed Control Friction Adjustment NOTE: Adjust the bolt downward for quicker activation. FSC Switch Actuator Arm Switch Closed in Neutral Switch Adjustment Bolt Jam Nut Friction Nut Front of Mower FSC Neutral Switch Adjustment (Side View Through Chassis) FSC Friction Adjustment Test 1. Place the FSC lever in the full FORWARD position, and pull both steering levers fully back; the FSC lever should not move.
Maintenance Instructions ADJUSTMENTS Blade Clutch (PTO) With the clutch engaged, adjust the length of the clutch actuator rod to achieve a clutch spring assembly bolt head clearance of 1/4 in. to 5/16 in. (6.5 mm to 8 mm). To adjust the clutch actuator rod length, loosen both ball joint jam nuts (one ball joint will have LH threads) and shorten the rod to increase the clutch spring assembly bolt head clearance, or lengthen the rod to decrease the bolt head clearance.
Maintenance Instructions ADJUSTMENTS 11 in.* (280 mm) 6 in.* (152.5 mm) Knuckle Joint Clutch Spring Assembly (Spring Uncompressed) 2-1/8 in.* (54 mm) *NOTE: Factory preset dimensions. Reset to these dimensions prior to adjustment if components have been disassembled. PTO Clutch Disengaged Blade Brake Band Adjustment The blade brake is designed to stop the blades within five (5) seconds after clutch disengagement.
Maintenance Instructions 2. After adjustments are complete, verify blade brake performance by following the procedure in CHECKING/SERVICING the Blade Brake Action in this section. If the blades do not stop within five (5) seconds, check the following: a. Make sure clutch and brake linkages are working freely (no binding). b. Check the brake band and PTO pulley brake drum for wear. Replace any components that are excessively worn. c. Verify that the PTO belt is declutching completely from the pulleys.
Maintenance Instructions ADJUSTMENTS GHS “Full” Signal Horn Adjustment Exhaust Screen DANGER 4 to 4-1/2 in. (10.16 to 11.43 cm) PINCH POINT - SPRING LOADED DOOR When lowering the door on the GHS catcher, BE VERY CAREFUL to keep hands, fingers, etc. out of the hinging mechanism and away from the door frame as the door closes. The springs that hold the door closed during operation are very powerful, and the door can slam shut with considerable force.
Operator’s Notes 77
Operator’s Notes 78
LIMITED WARRANTY FOR WALKER MODEL S14 RIDER MOWER 1. WHAT THIS WARRANTY COVERS, AND FOR HOW LONG: Walker Manufacturing company will, at its option, repair or replace, without charge, any part covered by this warranty which is found to be defective in material and/or workmanship within one (1) year* after date of sale to the original retail purchaser unless the product is used for rental purposes, in which case this warranty is limited to ninety (90) days.
WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (970) 221-5614 FORM NO. 050514 PRINTED IN USA www.walkermowers.com ©2014 WALKER MFG.
