Poulan 187189 manual To Check and Adjust Brake See Fig, To Replace Motion Drive Belt See Fig

Page 20

SERVICE AND ADJUSTMENTS

IDLER PULLEYS

MANDREL PULLEYS

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

TO REPLACE MOTION DRIVE BELT (See Fig. 22)

Park the tractor on level surface. Engage parking brake. For assistance, there is a belt installation guide decal on bottom side of left footrest.

BELT REMOVAL -

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

NOTE: Observe entire motion drive belt and position of all belt guides and keepers.

•Remove belt from stationary idler and clutching idler.

•Remove belt downward from around engine pulley.

•Pull belt slack toward rear of tractor. Remove belt upwards from transaxle pulley by deflecting belt keep- ers.

•Remove belt from center span keeper and pull belt away from tractor.

BELT INSTALLATION -

•Carefully work new belt down between transaxle belt keepers and onto the input pulley.

•Slide belt into the center span keeper.

•Pull belt toward front of tractor and roll around the top groove of engine pulley.

•Install belt through stationary idler and clutching idler.

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

•Install mower (See “TO INSTALL MOWER” in this sec- tion of manual).

ENGINE

PULLEY

CLUTCHING

IDLER

STATIONARY

IDLER

CENTER SPAN

KEEPER

TRANSAXLE

PULLEY

FIG. 22

TRANSAXLE GEAR SHIFT LEVER NEUTRAL- ADJUSTMENT (See Fig. 23)

The transaxle should be in neutral when the gear shift lever is in neutral (N) (lock gate) position. The adjustment is preset at the factory; however, if adjustment is needed, proceed as follows:

•Make sure transaxle is in neutral (N).

NOTE: When the tractor rear wheels move freely, the

FIG. 21

20

transaxle is in neutral.

 

 

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Contents Model NO. PO1742STB Safety Rules Safety Rules Table of Contents Contents of Hardware Pack Assembly 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 FigMaintenance Lubrication ChartGeneral Recommendations Before Each USETractor Clean AIR Screen EngineBelts Transaxle CoolingCleaning Engine Cooling Fins See FigMuffler Spark PlugsTo Remove Mower See Fig Service and AdjustmentsTo Install Mower See Fig To Level Mower Housing Belt InstallationTo Replace Mower Blade Drive Belt See Fig Belt RemovalTo Check and Adjust Brake See Fig Transaxle Gear Shift Lever NEUTRAL- Adjustment See FigTo Adjust Brake To Replace Motion Drive Belt See FigTo Adjust Steering Wheel ALIGN- Ment Replacing Battery See FigsFront Wheel TOE-IN/CAMBER To Attach Jumper CablesTo Adjust Carburetor To Replace Headlight BulbInterlocks and Relays To Replace FuseStorage OtherFuel System Engine OILTroubleshooting Points OFF Service Notes Schematic Tractor - Model Number PO1742STBElectrical KEY Part Description Chassis and Enclosures 179101 170 Drive 173937Steering Assembly 186737 Engine Optional EquipmentSeat Assembly Seatlt.bolt1Decals Wheels & TiresMower Lift Mower Deck 153535 Limited Warranty Policy Suggested Guide for Sighting Slopes for Safe Operation

187189 specifications

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