Briggs & Stratton MB (18 HP) owner manual Neutral Window, Full Forward Speed Adjustment Step

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Maintenance Instructions

ADJUSTMENTS

3.Block the tractor up so the drive tires are off the ground.

4.With the FSC in neutral, start the engine. (Op- erate first at idle and then normal operating speed) and check for movement of drive wheels.

NOTE: If the engine will not start, check and ad- just the neutral safety switch (see adjustment below).

5.With the FSC in the neutral position and the en- gine running, the wheels should not move. If a drive tire is moving, the Control Rod on that side is out of adjustment. Adjust that side to achieve neutral. Now both transaxles are in the neutral window.

Control Rod

Neutral Window

6.One at a time adjust the left and right Control Rods to find the center of the neutral window. Shorten the rods until the drive tire turns forward then lengthen it until the drive tire turns in reverse (approximately 1 turn). Position the rods 1/2 way between forward and reverse. Tighten the jam nuts.

7.Lower drive tires onto ground.

Full Forward Speed Adjustment - Step 4

1.Move the FSC to the full forward speed position.

2.Raise the body. The set screws in the left and right Transmission Control Arms should not be contacting the locating stud in the transaxle. If they are, back the set screws out until they do not touch.

Neutral Travel End

Neutral Travel End

Straight Tracking Adjustment - Step 5

1.Sit in the seat, start the engine, set throttle at full speed, and with the FSC in the neutral-park po- sition check for movement of either drive wheel (if either wheel moves backward or forward, re- fer back to the Neutral Position Adjustment - Step 2 and readjust).

2.Check for straight ground tracking on a level surface (with hands off the steering levers). Set the FSC at several different speeds and ob- serve if the mower moves in a straight line (use cement joint or other line on ground for refer- ence).

3.If travel is not straight, shorten the control rod of the slow side (adjust in 1/8 turn increments) to match the faster side while maintaining the neu- tral position. If straight tracking and neutral can not be achieved, turn the control rod back to where neutral can be achieved.

4.Lengthen the control rod of the faster side (ad- just in 1/8 turn increments) to match the slower side while maintaining the neutral position.

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Contents Illustrated Parts Manual Foreword Table of Contents Spread Tail Wheel Axle KIT Main ComponentHydrostatic Ground Steering Control AssembliesFill In By Purchaser General InformationGlossary Identifying Number LocationsServicing of Engine and Drivetrain Components Transmission SpecificationsEngine Electrical SystemTire Size Blade DriveTire Pressure FRAME/BODY Construction Mower DeckDrive Belts SeatFront View and Right Side View Component IdentificationRear View and Left Side View Top View Body Raised Before Operating Safety InstructionsDo not mow with bystanders in the area Operating Case of a clogged or plugged mower deck MaintenanceSafety Instructions SAFETY, CONTROL, and Instruction Decals SAFETY, CONTROL, and Instruction Decals Deck Caster Wheel Installation Assembly InstructionsSetup Instructions Battery ServicePTO Shaft Connection PTO Shaft Guard InstallationDeck Installation Mower Deck InstallationDeck Counterweight Spring Installation Deck Leveling Body Rod in Stowed Position Body Rod in Engaged PositionCheck Engine Crankcase OIL Level Adjust Mower Cutting HEIGHT, if RE- Quired Control IDENTIFICATION, LOCATION, and Function Operating InstructionsOperating Controls Choke and Throttle Location Forward Speed Control FSC PTO SwitchEngine Choke Engine ThrottleHydro Lockout Rod Location Hourmeter Operating Controls Top View from Drivers Point of View Left Wheel Right Wheel Steering LeverStarting the Engine Adjusting Ground Speed and SteeringDisengaged Correct Operator Hand Position on the Controls Blade Clutch Engaged Blade Clutch Disengaged Engaging the MowerStopping the Machine Cutting Height AdjustmentRecommendations for Mowing Transaxle LockoutsHydro Lockout Rod Freewheel Position Hydro Lockout Rod Normal Operating PositionMaximum Recommended Side Slope Side Discharge Shield in Lowest PositionService Item 100 250 Daily Hours Yearly Maintenance InstructionsImportant Tips for Care of the Briggs & Stratton Engine Dipstick Operating Range LubricationEngine Oil Each USEGrease Fitting and Oil Point Lubrication Dipstick and Oil Fill View from above left side of tractorLubrication Maintenance Instructions Transaxle Lubrication Mower Deck Gearbox LubricationTransaxle Drain Plugs View from underside of tractor CleaningKeep Engine Screen Clean Transaxle Oil Filter LocationClean Cooling Fins and Fan Air Cleaner System CleaningCHECKING/SERVICING Deck Secured in Tilt-Up PositionTire Pressure BatteryCleaning the Terminals Batteries Produce Explosive GasesBlade Balanced on Magnetic Wall-Mounted Balancer Mower Blade Profile For SharpeningDrive Belts Belt Locations REPLACING/REPAIRINGSpark Plugs Breaker PointsEngine/PTO Belt Engaged Engine/PTO BeltRemove Belt Guard Engine/PTO Belt DisengagedGround Drive Belt Assembly Engaged Ground Drive Belt Assembly DisengagedPTO Shear Pin Fuel FilterFuel Filter Location Cutting Blade Shear BoltsMower Blades Steering Handles Adjustment Step AdjustmentsSteering Lever Position Adjustment Step Stop Bolt Location Stop Bolt AdjustmentActuator Rod Length Adjustment Steering Lever AdjustmentNeutral Position Adjustment Step FSC Position Steering AdjustmentNeutral Travel End Full Forward Speed Adjustment StepStraight Tracking Adjustment Step Neutral WindowForward Speed Control Friction Adjustment Step Neutral Travel End AdjustNeutral Switch Adjustment Step FSC Switch LocationTilt-Up Deck Adjustable Stop ADJUSTMENTS/ Electrical System0DLQWHQDQFHHFDOV 75$&725&$/6Refer to Decks Parts Manual 13 for Deck Decals KDVVLV$VVHPEO\ +$66,6$660%7LOW8S/DWFK$VVHPEO\ DvwhqhuvF009 372ULYH$VVHPEO\ Dvwhqhuv $,1&203211732575$160,66,21F051 XHO7DQN$VVHPEO\ 5283KRNHDQG7KURWWOH$VVHPEOLHV F392 URXQGULYH$VVHPEOLHV +5267$7,&*52815,9$660%/,63DUNLQJ%UDNH$VVHPEO\ F066 6WHHULQJ/HYHU6&$VVHPEOLHV Dvwhqhuv 675,1*&21752/$660%/,67UDQVPLVVLRQ6SULQJ$VVHPEOLHV F183 OHFWULFDO$VVHPEO\ Dvwhqhuv 75,&$/$660%Detail a 6SUHDG$OH.LW Dvwhqhuv 635$7$,/+/$/.,7F016 6&+0$7 Limited Warranty For Walker Model MB Rider Mower Sound Test Sound Model MB