Briggs & Stratton MB (18 HP) owner manual Specifications, Engine, Electrical System, Transmission

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Specifications

MODEL	MB
ENGINE
Manufacturer/Model	Briggs & Stratton Vanguard, 2 Cyl. OHV (Air-Cooled)
Displacement	34.7 cu. in. (570 cc)
HP (@ 3600 RPM)	18.0
Max. RPM (No Load)	3600 ± 100
Governed RPM	3600 ± 100
Max. Torque [ft-lb (N⋅m) @ RPM]	29.5 (40.5) @ 2400
Idle RPM	1750
Spark Plug Type	Champion RC14YC
Spark Plug Gap	.030 in. (.75 mm)
Crankcase Capacity	1.5 qts (1.4 liters)
Crankcase Lubricant	SF/SG/SH/SJ or Higher Grade Oil Only with 30W Viscosity
	Above 40° F (4° C)
Fuel Tank Capacity	3 Gallons (11.35 liters)
Fuel	Automotive Grade Unleaded Gasoline (85 Octane)
Cooling System	Air Cooled

ELECTRICAL SYSTEM
Battery	12 Volt, 220 CCA (Interstate PC12/80)
Charging System	Flywheel Alternator
Charging Output	16 Amp DC (Regulated)
System Polarity	Negative Ground
Ignition	Magnetron® Electronic
Starter	12 Volt Electric Key and Solenoid Operated
Interlock Switch	Ignition Lockout by Seat Switch, Transmission Neutral and Blade Clutch

TRANSMISSION
Manufacturer/Model	Dual, Independent Hydro-Gear 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 Hydrostatic Transmission
Parking Brake	Mechanical Cog Lock in Transmission Gear
Neutral	Transmission Release by Manual Dump Valve
Final Drive	Direct Drive Axle from Transaxle

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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