Briggs & Stratton MB (18 HP) Starting the Engine, Disengaged, Adjusting Ground Speed and Steering

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Operating Instructions

STARTING THE ENGINE

CAUTION

Before operating the mower, read and un- derstand all Safety Instructions and Operat-

ing Instructions.

WARNING

NEVER run the engine in an enclosed or poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas.

1.Before attempting to start the engine, make sure the operator is in the seat, the Forward Speed Control is in NEUTRAL-PARKposition, and the blade clutch and parking brake are

DISENGAGED.

NOTE: Release parking brake to prevent extra load on the starter if the transmission neutral is slightly out of adjustment.

CAUTION

A safety interlock switch system PRE- VENTS CRANKING the engine with either the Forward Speed Control or the blade clutch (PTO) out of neutral. If the engine cranks otherwise, the safety system is not working and should be repaired or adjust- ed before operating the mower. DO NOT disconnect 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 RUN posi- tion as soon as the engine starts.

NOTE: The choke may not be required if the engine is warm.

IMPORTANT: DO NOT crank the engine con- tinuously 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 fol- low these guidelines can damage the starter motor and shorten battery life.

3.After the engine starts, gradually move the choke to the OFF position, keeping enough choke on to allow the engine to run smoothly as it warms up. As soon as possible, move the choke to the OFF position.

IMPORTANT: Make sure the choke is in the OFF position during normal engine operation; running with the choke in the ON position CAN damage the engine.

ADJUSTING GROUND SPEED AND STEERING

CAUTION

Learn to START, STOP, and MANEUVER the mower in a large, open area.

If the operator has not operated a machine with LEVER STEERING OR DUAL TRAN- SAXLES, steering and ground operation should be learned and practiced until the operator is completely comfortable han- dling the machine BEFORE ATTEMPTING TO MOW.

DANGER

Keep feet on footrest at all times when the machine is moving.

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Contents Illustrated Parts Manual Foreword Table of Contents Steering Control Assemblies Main ComponentHydrostatic Ground Spread Tail Wheel Axle KITIdentifying Number Locations General InformationGlossary Fill In By PurchaserServicing of Engine and Drivetrain Components Electrical System SpecificationsEngine TransmissionBlade Drive Tire SizeTire Pressure Seat Mower DeckDrive Belts FRAME/BODY ConstructionComponent Identification Front View and Right Side ViewRear View and Left Side View Top View Body Raised Safety Instructions Before OperatingDo not mow with bystanders in the area Operating Maintenance Case of a clogged or plugged mower deckSafety Instructions SAFETY, CONTROL, and Instruction Decals SAFETY, CONTROL, and Instruction Decals Battery Service Assembly InstructionsSetup Instructions Deck Caster Wheel InstallationMower Deck Installation PTO Shaft Guard InstallationDeck Installation PTO Shaft ConnectionDeck Counterweight Spring Installation Deck Leveling Body Rod in Engaged Position Body Rod in Stowed PositionCheck Engine Crankcase OIL Level Adjust Mower Cutting HEIGHT, if RE- Quired Operating Instructions Control IDENTIFICATION, LOCATION, and FunctionOperating Controls Engine Throttle PTO SwitchEngine Choke Choke and Throttle Location Forward Speed Control FSCHydro Lockout Rod Location Hourmeter Left Wheel Right Wheel Steering Lever Operating Controls Top View from Drivers Point of ViewAdjusting Ground Speed and Steering Starting the EngineDisengaged Correct Operator Hand Position on the Controls Engaging the Mower Blade Clutch Engaged Blade Clutch DisengagedCutting Height Adjustment Stopping the MachineHydro Lockout Rod Normal Operating Position Transaxle LockoutsHydro Lockout Rod Freewheel Position Recommendations for MowingSide Discharge Shield in Lowest Position Maximum Recommended Side SlopeMaintenance Instructions Service Item 100 250 Daily Hours YearlyImportant Tips for Care of the Briggs & Stratton Engine Each USE LubricationEngine Oil Dipstick Operating RangeDipstick and Oil Fill View from above left side of tractor Grease Fitting and Oil Point LubricationLubrication Maintenance Instructions Mower Deck Gearbox Lubrication Transaxle LubricationTransaxle Oil Filter Location CleaningKeep Engine Screen Clean Transaxle Drain Plugs View from underside of tractorCleaning Clean Cooling Fins and Fan Air Cleaner SystemDeck Secured in Tilt-Up Position CHECKING/SERVICINGBatteries Produce Explosive Gases BatteryCleaning the Terminals Tire PressureMower Blade Profile For Sharpening Blade Balanced on Magnetic Wall-Mounted BalancerDrive Belts Breaker Points REPLACING/REPAIRINGSpark Plugs Belt LocationsEngine/PTO Belt Disengaged Engine/PTO BeltRemove Belt Guard Engine/PTO Belt EngagedGround Drive Belt Assembly Disengaged Ground Drive Belt Assembly EngagedCutting Blade Shear Bolts Fuel FilterFuel Filter Location PTO Shear PinMower Blades Stop Bolt Location Stop Bolt Adjustment AdjustmentsSteering Lever Position Adjustment Step Steering Handles Adjustment StepFSC Position Steering Adjustment Steering Lever AdjustmentNeutral Position Adjustment Step Actuator Rod Length AdjustmentNeutral Window Full Forward Speed Adjustment StepStraight Tracking Adjustment Step Neutral Travel EndFSC Switch Location Neutral Travel End AdjustNeutral Switch Adjustment Step Forward Speed Control Friction Adjustment StepADJUSTMENTS/ Electrical System Tilt-Up Deck Adjustable Stop75$&725&$/6 0DLQWHQDQFHHFDOVRefer to Decks Parts Manual 13 for Deck Decals Dvwhqhuv +$66,6$660%7LOW8S/DWFK$VVHPEO\ KDVVLV$VVHPEO\F009 $,1&203211732575$160,66,21 372ULYH$VVHPEO\ DvwhqhuvF051 5283 XHO7DQN$VVHPEO\KRNHDQG7KURWWOH$VVHPEOLHV F392 +5267$7,&*52815,9$660%/,6 URXQGULYH$VVHPEOLHV3DUNLQJ%UDNH$VVHPEO\ F066 675,1*&21752/$660%/,6 6WHHULQJ/HYHU6&$VVHPEOLHV Dvwhqhuv7UDQVPLVVLRQ6SULQJ$VVHPEOLHV F183 75,&$/$660% OHFWULFDO$VVHPEO\ DvwhqhuvDetail a 635$7$,/+/$/.,7 6SUHDG$OH.LW DvwhqhuvF016 6&+0$7 Limited Warranty For Walker Model MB Rider Mower Sound Model MB Sound Test