Walker S18 Operator'S Manual Download Page 7

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S18

Specifications

SPECIFICATIONS

ENGINE

Manufacturer/Model

Briggs & Stratton Vanguard, 2 Cyl. OHV, Gasoline (Air-Cooled)

Displacement cu. in. (cc)

34.8 (570)

Max. Power HP (kW)

18.0 (13.4) @ 3600 RPM

Governed RPM

3650

Max. Torque lb

ft (N

29.2 (39.6) @ 2400 RPM

Idle RPM

1450

Spark Plug Type

Champion

XC92YC

Spark Plug Gap in. (mm)

.030 (0.76)

Crankcase Capacity qt (L)

1.5 (1.4)

Crankcase Lubricant

API SJ or Higher Grade Oil Only with 30W Viscosity Above

40° F (4° C) or 10W-30 Viscosity from 0° F (-18° C) to 80° F (27° C)

Oil Filter

Briggs & Stratton P/N 842921

Cooling System

Air-Cooled

Fuel Tank Capacity gal (L)

4.0 (15.1)

Fuel

Regular Grade Unleaded Gasoline

(87 Octane Minimum, 10% Ethanol Maximum)

Air Cleaner

Remote Mounted Cummins/Fleetguard OptiAir

(Walker P/N 2090-1 Primary/2090-3 Safety Filter)

ELECTRICAL SYSTEM

Battery

12 Volt, 300 CCA (Interstate SP-35)

Charging System

Flywheel Alternator

Charging Output

16 Amp DC (Regulated)

System Polarity

Negative Ground

Ignition

Magnetron

Electronic Magneto

Starter

12 Volt Electric Key and Solenoid Operated

Interlock Switches

Ignition Lockout by Seat Switch, Transmission Neutral,

Blade Clutch, and Parking Brake

Circuit Breaker(s)

Two Fuses (5A)

Auto Reset (30A)

TRANSMISSION

Manufacturer/Model

Dual, Independent Hydro-Gear

ZT3100 Integrated Transaxles

Steering

Hand Lever Control / Individual Wheel

Forward Speed Control

Precision Friction Lock Lever, Cruise Control, with

Neutral-Park Position

Service Brake

Dynamic Braking through Transaxles

Parking Brake

Internal Mechanical Cog Lock for each Transaxle

(Single Lever Control)

Summary of Contents for S18

Page 1: ...intenance Instructions Please Read and Save These Instructions For Safety Read All Safety and Operation Instructions Prior to Operating Machine Beginning S N 178948 P N 5000 71 Note The S18 shown in this manual is equipped with an optional comfort seat ...

Page 2: ...jury to the operator 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 S18 with the Briggs Stratton Vanguard 18 HP gasoline engine All shields and guards must be in place for the proper and safe operatio...

Page 3: ...or 21 Deck Installation 21 Deck Leveling 24 Preoperating Checklist 25 Operating Instructions 27 Control Identification Location and Function 27 Ignition Switch 27 Engine Choke 28 Engine Throttle 28 Forward Speed Control FSC 28 Steering Levers 28 Blade Clutch Switch PTO 29 Front Body Latch Release 29 Parking Brake 29 Transaxle Lockout Arms 30 Hourmeter 30 Circuit Breakers 30 Starting the Engine 32 ...

Page 4: ...Housing 61 Checking Servicing 62 Security of Air Filtration Components 62 Battery 62 Cleaning the Terminals 62 Charging the Battery 63 Tire Pressure 63 Wheel Nut Torque 63 Sharpen Mower Blades 63 Drive Belts 64 Mower Deck Gearbox Oil Seals 65 Spark Plugs 65 Ignition 65 Ignition Wires 65 Fuel Lines and Clamps 65 Transmission Control Setting 65 Neutral Park 65 Straight Ground Tracking 65 Blade Brake...

Page 5: ...FT 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 and GHS blower POWERFIL spreads the mowed material throughout the interior of the grass catcher by an oscillating delivery spout RIGHT HAND RH refers to the right hand side of the tractor when the operator is seated...

Page 6: ... these components during the limited warranty period it is 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 ...

Page 7: ...Cleaner Remote Mounted Cummins Fleetguard OptiAirTM Walker P N 2090 1 Primary 2090 3 Safety Filter ELECTRICAL SYSTEM Battery 12 Volt 300 CCA Interstate SP 35 Charging System Flywheel Alternator Charging Output 16 Amp DC Regulated System Polarity Negative Ground Ignition Magnetron Electronic Magneto Starter 12 Volt Electric Key and Solenoid Operated Interlock Switches Ignition Lockout by Seat Switc...

Page 8: ...2 Infinitely Variable 0 5 0 8 Infinitely Variable BLADE DRIVE PTO Shaft Quick Disconnect Sliding Spline Shaft with Two 2 High Speed U Joints Blade Drive 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 Wheel 8 x 3 00 4 Semi Pneumatic Standard 8 x 3 00 4 Pneumatic 4 Ply Optional Drive 18 ...

Page 9: ...actor Only 662 300 Tractor with 42 Collection Deck DC42 1 853 387 Tractor with 48 Collection Deck DC48R 2 885 401 GHS SYSTEM Blower 12 75 in Diameter Three Blade Paddle Wheel Blower Brake Ogura Electric Clutch Brake Brake Works in Combination with PTO Clutch Stops Blower within Five 5 Seconds of PTO Disengage ment Max Blower RPM 2900 Grass Catcher Capacity gal bu L 65 7 246 Full Signal Grass Pak S...

Page 10: ...30 3 SEAT Contour Molded with Nylon Backed Vinyl Cover and Integral Foam Cushion FRAME BODY CONSTRUCTION Frame All Welded Unitized Steel Chassis Body 14 Gauge Steel Deck 11 Gauge Steel GHS Catcher and Chutes Molded Cross Linked Polyethylene High Impact Material UV Stabilized for Chutes and Linear Low Density Polyethylene for Catcher NOTE The manufacturer reserves the right to make changes in speci...

Page 11: ... Scuff Roller Grass Handling System 7 0 Bushel Catcher Tilt Up Latch Spring Clip Deck Caster Wheel Deck Lift Handle Cutting Height Adjustment Fuel Tank and Cap Catcher Lift Dump Handle Forward Speed Control Friction Adjustment Tilt Up Hook Deck Support Arms Deck Support Pins and Height Adjustment Hitch Pins Counterweight Spring and Protective Cover Tilt Up Deck Handle Footrests ...

Page 12: ...ft Hand Drive Wheel Tailwheel Fork and Wheel Catcher Door Catcher Door Gas Spring Not Visible Catcher Lift Dump Handle Battery Negative Battery Cable Positive Battery Cable Gas Spring Cover Footrests Dump Flap Catcher Air Exhaust Catcher Door Handle Engine Air Cleaner Anti Scuff Roller Oil Filter Tailpipe ...

Page 13: ...ansaxle Oil Expansion Reservoir Fuel Pickup Line Roll Over Valve Fuel Gauge EVAP Line Throttle Linkage Choke Linkage Cummins Fleetguard Air Cleaner Air Intake Hose Fuel Pump RH Steering Lever Spring Dampener LH Steering Lever Spring Dampener LH Transmission Control Rod RH Transmission Control Rod Neutral Safety Switch Jackshaft 30 Amp Circuit Breaker Tailpipe GHS Blower Parking Brake Safety Switch...

Page 14: ...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 15: ...tion 1 Forward Speed Control FSC out of NEU TRAL PARK 2 PTO Clutch ENGAGED or 3 Parking Brake DISENGAGED NOTE There is a 1 2 second time delay function on the seat switch to avoid engine power interruption when driving over bumps 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...

Page 16: ...ition 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 17: ...void bending at the waist and using back muscles in order to prevent back injury 20 In case of a clogged or plugged mower deck or GHS catching system 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 and blower drive pulley movement has stopped before trying to unclog the system c Disconnect the spark plu...

Page 18: ...in unsafe operating conditions 7 Altering the equipment or engine in any man ner which adversely affects its operation perfor mance durability or use will VOID the warranty and may cause hazardous condi tions 8 Never attempt to disconnect any 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 fac...

Page 19: ...ject hazard Never engage the PTO with grass catcher raised Location Rear of Grass Catcher Exhaust Screen Part Number 5869 Location Catcher Door Hinge Bar LH and RH Sides Part Number 8600 10 Caution Pinch point Keep all body parts clear when closing grass catcher door 8600 12 Location Top of Engine Part Number 8600 12 Warning carbon monoxide CO poisoning hazard CO emitted by a running engine can be...

Page 20: ...nd in the lowest position 2 Warning rotating mower blades are a cutting dismemberment hazard to hands and feet 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 Location Deck Carrier Frame Part Number 8600 15 Warning lock deck tilt up hinge before operatin...

Page 21: ...read Operator s Manual before oper ating the machine 3 Warning crushing dismemberment hazard of bystanders Do not carry passengers Always stop the machine if someone enters the area 4 Warning always be aware of what is behind the machine before backing up Do not mow in reverse unless absolutely necessary Always look down and behind when backing up 5 Warning thrown object hazard Keep bystanders awa...

Page 22: ... implement attached 2 Forward Speed Control Move lever forward to increase speed back to stop 3 Warning read Operator s Manual before servicing or performing maintenance Engage parking brake Remove ignition key 4 Warning do not engage PTO clutch with PTO shaft disconnected Warning wear eye and ear protection when operating the machine 5 Warning roll over hazard Do not mow or drive the tractor with...

Page 23: ...cid 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 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 terminal Nev...

Page 24: ... cup on the outside of each wheel bearing and slide the wheel assembly into the wheel fork 3 Insert the 3 8 16 x 4 1 2 in bolt through the wheel fork with the bolt head to the outside and install the 3 8 16 Keps nut 4 Tighten the bolt and nut until the axle spacer tube and inner bearing race bottom against the inside of the wheel fork will not turn while the wheel spins freely without binding Axle...

Page 25: ... two 2 tilt up roller wheels on the brack ets on the rear skirt of the deck housing using the P N 8490 axle bolt 3 8 in plain washer 3 8 in wave spring washer between bracket and wheel and 3 8 16 in Whiz locknut Tighten the axle bolt until the wheel rolls freely but is not loose PTO Shaft Guard Roller Wheels Attach Spring Tilt Up Spring and Roller Wheel Installation on Collection Deck Mower Deck I...

Page 26: ... for security Coupler Ring in Released Position PTO Drive Shaft PTO Coupler U Joint Quick Disconnect Ring Released Position Coupler Ring in Locked Position PTO Drive Shaft PTO Coupler U Joint Internal Balls Locked on Shaft Quick Disconnect Ring Locked Position 6 Slide the deck the rest of the way on the deck arms If the deck is collection style GHS equipped model the discharge chute will need to b...

Page 27: ...e deck tilt up pivot joint unlocked Deck Lock Lever Engaged Deck Lock Levers Engaged 10 Raise the mower body and clip the counter weight springs to the receptacle on front of body as shown in the Install Deck Counter weight Spring photo Lower the body to tension the springs Counterweight Spring Clip Spring Tension Adjustment Nut Located Under Lower Spring Hook Install Deck Counterweight Spring 11 ...

Page 28: ...nd during the leveling pro cess WARNING The machine must be shut off during this procedure 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 forwa...

Page 29: ...aso line Always use fresh automotive grade unleaded gasoline DO NOT use gasoline 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 alcohol 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 En...

Page 30: ... 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 deck to the normal operating position ...

Page 31: ... RUN position is the START position Ignition Switch 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...

Page 32: ... posi tion a friction lock holds any forward speed setting from 0 to 7 4 mph 0 to 12 km h The ground speed is proportional 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 position Pulling back on the steer ing levers overrides the FSC setting and slows o...

Page 33: ...OPERATING position To raise the body move the latch release backward Front Body Latch Release Front Body Latch Release Parking Brake The parking brake functions by locking a detent arm to a cog in the hydraulic motor rotor Moving the lever FORWARD engages the parking brake moving the lever BACKWARD releases the brake IMPORTANT Stop the tractor completely before engaging the parking brake The parki...

Page 34: ...amage the transaxle s Hourmeter The hourmeter which is located on the right front of the body displays operating time accumulated while the PTO blade drive is engaged Some tractors are equipped with hourmeters that provide maintenance reminders after certain hours of operation The hourmeter screen will start flash ing the reminder one hour prior to the recommend ed interval and will continue until...

Page 35: ...tion of the Steering Levers Neutral Park Position Full Forward Ground Speed Position Intermediate Ground Speed Position Reverse Drive Wheel Motion Position Neutral Park Position FORWARD SPEED CONTROL LEVER FSC LEFT WHEEL STEERING LEVER Forward Position No Control Change Fast Throttle Position Idle Position OFF Position ON Position Disengaged Position Engaged Position RIGHT WHEEL STEERING LEVER ...

Page 36: ...nnect safety switches they are for the operator s protection 2 Move the choke lever to the ON position and move the throttle 1 4 to 1 2 open toward FAST Turn the ignition switch to the START position to start the engine Release the key to ON RUN position as soon as the engine starts NOTE The choke may not be required if the engine is warm IMPORTANT DO NOT crank the engine continuously for more tha...

Page 37: ...tion and or the FSC is out of the NEUTRAL PARK position tractor stationary or moving for ward and the operator is not in the seat The function of this switch should be checked by the op erator raising off the seat first with the parking brake DISEN GAGED and then with the tractor moving forward allow 1 2 second off the seat for the time delay function the engine should stop In each case if the saf...

Page 38: ... and ground speed slow until learning the control response WARNING When moving forward DO NOT suddenly put the tractor in reverse by rapidly pulling 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 Spee...

Page 39: ...k ing it should be repaired or replaced be fore operating the mower DO NOT disconnect the safety switches they are for the operator s protection IMPORTANT DO NOT engage the blade clutch when transporting the mower across drives side walks loose materials etc DO NOT engage the blade clutch with the PTO shaft disconnected the mower deck removed from tractor CAUTION If the cutting blades strike a sta...

Page 40: ...belt breaks during operation and if the machine is on a slope the machine will freewheel down the slope To maintain control immediate ly 1 Release the steering levers and si multaneously 2 Move the FSC to the NEU TRAL PARK position When the machine is stopped or moving slowly engage the parking brake NOTE The emergency stop procedure is exactly the same procedure as used to normally stop and park ...

Page 41: ...be erratic Transaxle Lockout Arm Transaxle Lockout Arm Normal Operating Position 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 inad vertent contact may cause injury Avoid Low Hanging Branches IMPORTANT Operate the engine at full throttle when mowing to allow the engine to produce full horsepower and...

Page 42: ...levers since the transaxles are power boosted controls and jerk ing the levers can easily slip the tires For sharp turns do not allow the inside wheel to stop and twist on grass pull inside steering lever into reverse for a smooth rolling turn one wheel rolling forward while the other rolls backward When using a side discharge mower deck the side discharge deflector shield must not be removed and ...

Page 43: ...m mendations are offered Do not move the tractor with the deck in the tilt up 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 The tractor body should never be tilted forward with the deck in the tilt up position This can cause the deck to unhook fr...

Page 44: ...lade Gear Drive Exhaust Screen Removable Catcher Door Spring Not Visible Actuator Rod Powerfil Drive Motor Grass Pak Vane Switch Full Signal Horn Catcher Door Grass Catcher Catcher Air Exhaust Powerfil Delivery Spout Dump Handle Catcher Delivery Chute Body Chute Assembly Blower Deck Discharge Chute Blade Clutch Switch PTO ...

Page 45: ...ort pins are repositioned 2 to 3 notches higher while leaving the rear pins in their original position DANGER NEVER operate the GHS catcher with the back door open Objects may be thrown out the back of the catcher with sufficient force to cause serious injury to bystand ers or property damage DANGER ROTATING BLOWER BLADES NEVER operate the GHS blower with the blower discharge chute uncovered grass...

Page 46: ...r weeds which are juicy The material collects under the deck with sticky green juice Clo ver and weeds are especially a problem The mower deck will need to be cleaned frequently when operating in these conditions Check the deck cutting height setting When working in thick tall grass lower deck settings 1 5 to 2 in 38 to 51 mm cutting heights tend to restrict airflow from moving into and under the ...

Page 47: ... WARNING DO NOT test the Powerfil oscillation or Grass Pak switch with the engine running Projectiles may be thrown out of the grass delivery spout and COULD cause serious injury The full signal horn is designed to operate sound when the grass catcher is almost full The timing of the signal is adjustable by changing the position of the vane on the Grass Pak switch If the signal is coming on too so...

Page 48: ... catcher in the raised position is not a shock absorber for lowering the catcher 4 Close the door by pulling down on the door handle The door should close smoothly with the assistance of the gas springs If the damp ening springs are not functioning properly they should be replaced to prevent the door from slamming closed and possibly causing a pinch point Using the Dump Bag 1 Open the back door by...

Page 49: ...and closes during the dump cycle Hold the toggle switch UP or DOWN to RAISE or LOWER the catcher When the catcher reaches the full raised or lowered position the power ram clutch will make a ratcheting sound Release the toggle switch as soon as this sound is heard DO NOT operate the ram with the clutch ratcheting for an extended time as this will cause extra wear on the clutch mechanism CAUTION Th...

Page 50: ... Grass Catcher Lift Channel RH Catcher Door Arm LH Catcher Door Arm Cable Assembly Door Arm Actuator Cable Guide Catcher Door Gas Spring Power Dump Mount Lift Arm Gas Spring Power Dump Ram Actuator Guard Power Dump Switch Power Dump Components ...

Page 51: ...65 Change Transaxle Oil and FilterΔ x 55 Replace Air Filter Element and Safety Filter x 57 Replace Fuel Filter x 72 Clean Engine Cooling Fins x 59 Check Fuel Lines and Clamps x 65 Service Battery x 62 Check Adjust Vertical Position of Grass Pak Switch x 79 Check Adjust FSC Friction Lock x 66 Check Transmission Control Settings x 65 Check PTO U Joints for Wear Looseness x 66 Replace Fuel Lines and ...

Page 52: ... allows the engine to produce full horsepower and move more cooling air through the engine cool ing fins Air Cleaner System Use only Cummins Fleetguard air cleaner elements After market elements may not seal in the air cleaner housing allowing dirt to enter the engine Also af termarket filters often skimp on the filtration media and require more frequent replace ment see following instruc tions DO...

Page 53: ...pped 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 the dipstick clean the area around the dipstick to keep any dirt or debris out of the engine 3 Remove the dipstick wipe off with a clean rag then reinsert the dipstick into the tube and ...

Page 54: ...se ONLY oil filters from the en gine manufacturer Briggs Stratton P N 842921 After market oil filters may not seal properly and or may not have the correct pressure relief valve for proper lubrication 7 Install the new oil filter on the engine Turn the filter clockwise until the rubber gasket contacts the sealing surface then tighten an additional 1 2 to 3 4 turn 8 Reinstall the oil drain plug Mak...

Page 55: ...purpose lithium or molyb denum base grease for grease fittings and light machine oil SAE 10 to lubricate oil points Lubri cate the locations shown in the Chassis and Deck Lubrication Points illustration on page 53 NOTE PTO universal joints on the deck and trac tor require routine lubrication after every 25 hours of running time Remove tractor PTO quick disconnect tube assembly for easy access to g...

Page 56: ...lt Tightener Pivot Grease 1 18 Catcher Hinge Point Oil 2 19 Throttle Control Cable Ends Oil 2 Ident Lubrication No No Location Type Places 20 Engine Dipstick Oil Fill Oil 1 21 Choke Control Cable Ends Oil 2 22 Engine Idler Pivot Grease 1 23 Parking Brake Clevis Oil 2 24 Parking Brake Lever Pivot Grease 1 25 Choke Control Pivot Oil 1 26 Throttle Control Pivot Oil 1 Gearboxes are permanently lubrica...

Page 57: ...S18 Maintenance Instructions Lubrication 53 4 4 9 9 8 10 11 15 12 14 24 21 25 12 23 23 19 26 16 17 18 18 19 21 22 20 1 3 2 5 6 6 7 1 2 6 7 6 13 Chassis and Deck Lubrication Points DC36R Shown ...

Page 58: ...l level is up to submerges the horizontal shaft in the gearbox shaft parallel to cover plate NOTE In case the gearboxes are completely drained of oil approximately 5 fl oz 15 cl of oil per gearbox is required to refill the gear drive assembly NOTE Since the gearboxes are connected as a unit by connector tubes it is necessary to add oil slowly Allow a few minutes after add ing oil for the oil to fl...

Page 59: ...to access the oil fill opening 5 Fill the transaxles with 20W 50 API Service Class SL or higher oil through the opening where the elbows were Fill up to the open ing 6 Before reinstalling the elbows screw the lock ing nut on the elbows down until they are snug the o ring on the elbow will be to the bottom of the o ring groove Elbow Screw Locking Nut Down Reinstall Transaxle Elbows 7 Reinstall the ...

Page 60: ...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 IMPORTANT Use only Cummins Fleetguard air filter elements for replacement Walker 2090 1 and 2090 3 Aftermarket filters may not seal properly or filter efficiently IMPORTANT The Cummins Fleetguard air clean er uses a dry paper ty...

Page 61: ...n replacing a dusted engine 4 Use a bright light inside the filter 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 filter element if dirty or damaged 5 Check the condition and resilience of the radial sealing surface inside of the open end of the filter Replace the filter if any cracks tears o...

Page 62: ...lean 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 it may be nec essary to check and clean the screen several times each day to prevent engine over heating Also visually check inside cylinder head shroud and between cylinder head fins for material packed in this area w...

Page 63: ... step 2 2 If the dirt and debris cannot be removed with compressed air it will be necessary to remove the engine from the chassis and remove the engine shroud for thorough cleaning See your authorized Briggs Stratton dealer for this service CAUTION DO NOT use a pressure washer to clean the cooling system on an air cooled engine mud may form under the cooling shroud on the cylinder head and cooling...

Page 64: ...ER Do not operate the mower with deck in tilt up position Do not move the tractor with the deck in the tilt up position 3 Clean grass buildup underneath the deck using a pressure washer and scraper if re quired 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 NOTE While some degree of material...

Page 65: ...nd di rect the spray inside the blower housing against the blower blades Water pressure will cause the blower wheel to begin to spin and the com bination of spinning action and water will effec tively wash the inside of the housing Spray may be directed against the blower blades ver tically and horizontally to cause rotation in both directions for thorough wash ing action Wash blower until the blo...

Page 66: ...mount ed in the frame A loose battery may cause damage to the case resulting in acid leakage and severe dam age to the machine A hazard may be created by damage to critical working parts and safety systems The battery comes sealed and is maintenance free so the electrolyte level will not need to be checked or filled CAUTION Important Battery Service Installation and Charging Tips Do not allow the ...

Page 67: ... bal ance every 10 hours of operation or more often when mowing abrasive type grass or operating on sandy soils Replace blades if worn bent cracked or otherwise damaged refer to Mower Blades on page 73 Use the following proce dure to check and sharpen blades NOTE Keep blades sharp cutting with dull blades not only yields a poor mowing job but slows the cutting speed of the mower and causes extra w...

Page 68: ... on that end until the blade will balance The blade is properly balanced when neither end drops Balance of 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 loc...

Page 69: ...fuel line from the tank to engine for deterioration or damage Also inspect the fuel line clamps for tightness Good preven tive maintenance calls for complete replacement of fuel lines and clamps every two 2 years 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 mo...

Page 70: ...disengaged and the Forward Speed Control FSC or PTO is engaged Without an operator in the seat the engine starts and continues to run with the Forward Speed Control FSC and or PTO engaged or the parking brake disengaged With an operator in the seat the Forward Speed Control FSC and PTO disengaged and the parking brake engaged but the starter will not engage Forward Speed Control Friction Lock The ...

Page 71: ...e spark plug wires IMPORTANT ALWAYS use genuine factory replacement parts Substitute parts CAN result in product malfunction and possible injury to the operator and or others Drive Belts There are three 3 individual belts on the machine Engine Belt PTO Drive Belt Ground Drive Belt The belts may be removed and replaced using the procedures described on the following pages Belt Locations Engine Belt...

Page 72: ... Engaged 2 To replace the engine belt a Reverse the removal procedure to replace the engine belt Start with positioning the belt around the spring loaded idler pulley and route the belt around the remaining pulleys according the illustrations provided Jackshaft Pulley Engine Pulley Idler Arm Engine Belt Tension Spring Idler Pulley Fixed Idler Pulley Jackshaft Pulley Belt Tightener Idler Pulley Eng...

Page 73: ...ay from drive belt to loosen the belt c Disengage belt from lower PTO drive pulley d Unplug electric clutch wiring connection e Lift spring loaded stop finger out of slot in electric clutch body and remove belt Clutch PTO Drive Belt Clutch Stop Finger Lift Clutch Stop Finger PTO Drive Belt Disengaged PTO Drive Pulley PTO Drive Belt Clutch PTO Idler Pulley PTO Clutch Brake Actuator Arm ...

Page 74: ...ed PTO Drive Pulley PTO Drive Belt Clutch PTO Idler Pulley PTO Clutch Brake Actuator Arm 2 To replace the PTO belt a Install the PTO drive belt by reversing the removal procedure Replace engine belt Clutch PTO Drive Belt Clutch Stop Finger Clutch Stop Finger in Locked Position ...

Page 75: ...ly release the idler pulley Ground Drive Belt Assembly Disengaged 2 Reverse the procedure to install the ground drive belt Ground Drive Belt Assembly Engaged Raise Idler Pulley to Relax Belt LH Transaxle Drive Pulley Belt Tightener Idler Pulley RH Transaxle Drive Pulley Ground Drive Belt Drive Pulley Idler Pulley RH Transaxle Drive Pulley Drive Pulley LH Transaxle Drive Pulley Ground Drive Belt ...

Page 76: ... 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 by two 2 shear bolts 10 24 x 5 8 ...

Page 77: ...perated 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 t...

Page 78: ...one 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 T...

Page 79: ...osition Tighten the jam nuts Correct FSC Lever NEUTRAL PARK Position Adjust Length of Rod to Position FSC Lever FSC Lever Position Adjustment 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 Contr...

Page 80: ... maximum speed tracking adjustment set screw in both transmission control arms should not be contacting the limit stud on the transaxle If they are back the set screws out until they do not touch Transmission Control Arm T Handle Hex Wrench Maximum Speed Tracking Adjustment Maximum Speed Tracking Adjustment Shown with Parts Removed for Clarity Step 5 Straight Tracking Adjustment 1 Sit in the seat ...

Page 81: ... the body is raised Refer to Step 7 Forward Speed Control Friction Adjustment on page 78 for location of the FSC friction adjustment nut FSC Switch Switch Adjustment Bolt FSC Neutral Switch Location NOTE Adjust the bolt downward for quicker activation Switch Open FSC Friction Nut Front of Mower Switch Closed in Neutral FSC Switch Actuator Arm Switch Adjustment Bolt Jam Nut FSC Neutral Switch Adjus...

Page 82: ...ion is increased or decreased by tightening or loosening the friction ad justment nut Loosen or tighten the nut and check the control function until the conditions of both steps 1 and 2 above are met FSC Friction Adjustment Nut FSC Friction Adjustment Nut Tilt Up Deck Adjustable Stop When the carrier frame hinge joint is properly adjusted the deck lock levers should move in and out of the engaged ...

Page 83: ... with the engine running Projectiles CAN be thrown out of the grass delivery spout and CAN cause serious injury to bystanders or property damage 2 Measure from the exhaust screen top of catcher to the top of the Grass Pak switch actuator vane refer to Adjusting the Grass Pak Switch illustration The proper measure ment should be between 4 and 4 1 2 inches 10 and 11 5 cm 4 to 4 1 2 in 10 to 11 5 cm ...

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Page 87: ...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 arranged by contacting the de...

Page 88: ...WALKERMFG CO 5925E HARMONYROAD FORTCOLLINS CO80528 970 221 5614 FORM NO 112322 PRINTED IN USA www walker com 2022 WALKER MFG CO ...

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Walker S18, Operator'S Manual

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