Poulan 177552 owner manual Interlocks and Relays, To Replace Fuse, To Adjust Carburetor

Page 24

SERVICE AND ADJUSTMENTS

INTERLOCKS AND RELAYS

Loose or damaged wiring may cause your tractor to run poorly, stop running, or prevent it from starting.

Check wiring. See electrical wiring diagram in the Repair Parts section.

TO REPLACE FUSE

Replace with 20 amp automotive-type plug-in fuse. The fuse holder is located behind the dash.

TO REMOVE HOOD AND GRILL ASSEMBLY (See Fig. 31)

Raise hood.

Unsnap headlight wire connector.

Stand in front of tractor. Grasp hood at sides, tilt toward engine and lift off of tractor.

To replace, reverse above procedure.

HOOD

HEADLIGHT WIRE

CONNECTOR

FIG. 31

ENGINE

TO ADJUST THROTTLE CONTROL CABLE (See Fig. 32)

The throttle control has been preset at the factory and adjustment should not be necessary. Check adjustment as described below before loosening cable. If adjustment is necessary, proceed as follows:

With engine not running, move throttle control lever to fast position.

Check that swivel is against stop. If it is not, loosen cable clamp screw and pull cable back until swivel is against stop. Tighten cable clamp screw securely.

TO ADJUST CHOKE CONTROL (See Fig. 33)

The choke control has been preset at the factory and adjustment should not be necessary. Check adjustment as described below before loosening cable. If adjustment is necessary, proceed as follows:

With engine not running, move choke control (located on dash panel) to full choke position.

Loosen knob and remove cover assembly from air cleaner.

Choke should be closed. If it is not, loosen casing clamp screw and move choke cable until choke is completely closed. Tighten casing clamp screw securely.

Replace air cleaner cover assembly and tighten knob.

TO ADJUST CARBURETOR

Your carburetor is not adjustable. If your engine does not operate properly due to suspected carburetor problems, take your tractor to an authorized service center for repair and/or adjustment.

High speed stop is factory adjusted. Do not adjust - damage may result.

IMPORTANT: NEVER TAMPER WITH THE ENGINE GOVERNOR, WHICH IS FACTORY SET FOR PROPER ENGINE SPEED. OVERSPEEDING THE ENGINE ABOVE THE FACTORY HIGH SPEED SETTING CAN BE DANGEROUS. IF YOU THINK THE ENGINE-GOVERNED HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR N E A R E S T A U T H O R I Z E D S E R V I C E C E N T E R / DEPARTMENT, WHICH HAS PROPER EQUIPMENT AND E X P E R I E N C E T O M A K E A N Y N E C E S S A R Y ADJUSTMENTS.

STOP

SWIVELCLAMP

SCREW

FIG. 32

CLAMP SCREW

FIG. 33

24

Image 24
Contents PR20H42STB Safety Rules Safe Operation Practices for Ride-On MowersBecome ALERT!!! Your Safety is IN- Volved Table of Contents Unassembled Parts Steering Wheel SeatSlope Sheet Assembly Tools Required for AssemblyHOW to SET UP Your Tractor To Remove Tractor from CartonInstall Seat See Fig To SET UP Your Mower for Mulching Check Tire PressureCheck Deck Levelness To Convert to Bagging or DischargingOperation Know Your Tractor HOW to USE Your Tractor To Adjust Gauge Wheels See Fig To Operate Mower See FigTo Operate on Hills To Transport See FigsBefore Starting the Engine Check Engine OIL LevelADD Gasoline To Start Engine See FigMowing Tips Mulching Mowing TipsLubrication Chart Customer ResponsibilitiesGeneral Recommendations Before Each USETractor Engine Clean AIR INTAKE/COOLING Areas CleaningEngine OIL Filter MufflerService and Adjustments To Install Mower See FigTo Level Mower Housing To Remove Mower See FigRecheck side-to-side adjustment To Adjust Brake See Fig Belt InstallationTo Replace Mower Blade Drive Belt See Fig To Replace Motion Drive Belt See FigTransmission REMOVAL/REPLACEMENT Transaxle Motion Control Lever Neutral Adjustment See FigTo Adjust Steering Wheel Alignment Front Wheel TOE-IN/CAMBERTo Start Engine with a Weak Battery See Fig Replacing Battery See FigsTo Replace Headlight Bulb To Attach Jumper CablesTo Adjust Carburetor Interlocks and RelaysTo Replace Fuse Storage OtherFuel System Engine OILTroubleshooting Points OFF Service Notes Schematic Tractor - Model Number PR20H42STBElectrical 2122163465 175158175566 175141Chassis 176554 174930159 169473X428 Cupholder 5479JDrive 137057 7214060873900600 145212Steering Assembly KEY Part NO. NO.DESCRIPTION 173966Seat Assembly 174894Decals Wheels and TiresEngine Optional EquipmentSpark Arrester 2581170771 Control Throt 171877162797 165391Mower Deck 71081010 17449317060514 173986Mower Lift 159460 Wire Asm Inner/Sprg W/plunger LT Limited Warranty Suggested Guide for Sighting Slopes for Safe Operation Sighting GuideParts and Service