McCulloch Essential Service and Adjustments for Lawn Mowers: A Guide to the MC1136
Page 20

SERVICE AND ADJUSTMENTS

TO REPLACE MOWER BLADE DRIVE BELT (See Fig. 20)

The mower blade drive belt may be replaced without tools. Park the tractor on level surface. Engage parking brake.

BELT REMOVAL -

•Remove mower from tractor (See “TO REMOVE MOWER” in this section of manual).

•Work belt off both mandrel pulleys and idler pulleys.

•Pull belt away from mower.

BELT INSTALLATION -

•Work belt around both mandrel pulleys and idler pul- leys.

•Make sure belt is in all pulley grooves and inside all belt guides.

•Install mower (See "To Install Mower" in this section of manual).

MANDREL

IDLER

PULLEYS

PULLEY

 

MANDREL

02472

PULLEY

 

FIG. 20

TO CHECK AND ADJUST BRAKE (See Fig. 21)

Your tractor is equipped with an adjustable brake system which is mounted on the right side of the transaxle.

If tractor requires more than five (5) feet to stop at highest speed in highest gear on a level, dry concrete or paved surface, then brake must be checked and adjusted.

TO CHECK BRAKE

•Park tractor on a level, dry concrete or paved surface, depress clutch/brake pedal all the way down and en- gage parking brake.

•Place gear shift lever in neutral (N) position.

The rear wheels must lock and skid when you try to manually push the tractor forward. If the rear wheels rotate, the brake needs to be adjusted or the pads need to be replaced.

TO ADJUST BRAKE

•Depress clutch/brake pedal all the way down and en- gage parking brake.

•Measure distance between brake operating arm and nut “A” on brake rod.

•If distance is other than 1-1/2", loosen jam nut and turn nut “A” until distance becomes 1-1/2". Retighten jam nut against nut “A”.

•Road test tractor for proper stopping distance as stated above. Readjust if necessary. If stopping distance is still greater than five (5) feet in highest gear, further maintenance is necessary. Replace brake pads or contact a qualified service center.

WITH PARKING BRAKE “ENGAGED”

1-1/2"

NUT “A”

JAM NUT

OPERATING ARM

00238

FIG. 21

20

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Contents Model NO. MC1136 MC1136B 11 HP 36 Inch Lawn Tractor Safety Rules Safe Operation Practices for Ride-On MowersGeneral Operation II. Slope OperationIV. Towing ServiceIII. Children Table of Contents Unassembled Parts Steering Wheel SeatAssembly Tools Required for AssemblyTo Remove Tractor from Carton Before Removing Tractor from SkidCheck Battery See Fig HOW to SET UP Your TractorInstall Seat See Fig Check Tire Pressure Check Deck LevelnessCheck for Proper Position of ALL Belts Check Brake SystemOperation Know Your Tractor HOW to USE Your Tractor Before Starting the Engine Mowing Tips To Start Engine See FigBefore Each USE MaintenanceGeneral Recommendations Tractor Brake OperationTires Operator Presence SystemEngine Cleaning AIR Filter See FigMuffler Spark PlugsTo Remove Mower See Fig Service and AdjustmentsTo Install Mower see FIG To Level Mower Housing FRONT-TO-BACK Adjustment See FigsTo Check and Adjust Brake See Fig To Replace Mower Blade Drive Belt See FigTo Adjust Steering Wheel ALIGN- Ment To Replace Motion Drive Belt See FigFront Wheel TOE-IN/CAMBER To Remove Wheel for Repairs See FigTo Start Engine with a Weak Battery See Fig Replacing Battery See FigsTo Remove Hood and Grill Assembly See Fig To Adjust CarburetorInterlocks and Relays To Replace FuseStorage OtherFuel System Engine OILTroubleshooting Points When operator leaves seat Repair Parts SchematicElectrical KEY Part NO. NO. Description Chassis and Enclosures 532 19 39-34 Dash Drive Repair Parts Steering Repair Parts Engine Optional EquipmentSeat Decals Wheels & TiresMower Lift Mower Deck KEY Part Description Policy Suggested Guide for Sighting Slopes for Safe Operation Only Ride UP and Down Hill Not Across Hill Degrees MAX
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