Poulan 177552 Clean AIR INTAKE/COOLING Areas, Engine OIL Filter, Muffler, Spark Plugs, Cleaning

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CUSTOMER RESPONSIBILITIES

CLEAN AIR INTAKE/COOLING AREAS

To insure proper cooling, make sure the grass screen, cooling fins, and other external surfaces of the engine are kept clean at all times.

Every 100 hours of operation (more often under extremely dusty, dirty conditions), remove the blower housing and other cooling shrouds. Clean the cooling fins and external surfaces as necessary. Make sure the cooling shrouds are reinstalled.

NOTE: Operating the engine with a blocked grass screen, dirty or plugged cooling fins, and/or cooling shrouds removed will cause engine damage due to overheating.

AIR FILTER (See Fig. 16)

Your engine will not run properly using a dirty air filter. Clean the foam pre-cleaner after every 25 hours of operation or every season. Service paper cartridge every 100 hours of operation or every season, whichever occurs first.

Service air cleaner more often under dusty conditions.

Remove knobs and cover.

TO SERVICE PRE-CLEANER

Wash it in liquid detergent and water.

Squeeze it dry in a clean cloth.

Saturate it in engine oil. Wrap it in clean, absorbent cloth and squeeze to remove excess oil.

If very dirty or damaged, replace pre-cleaner.

TO SERVICE CARTRIDGE

Clean cartridge by tapping gently on flat surface. If very dirty or damaged, replace cartridge.

Reinstall precleaner cartridge, cover and secure with knobs.

IMPORTANT: PETROLEUM SOLVENTS, SUCH AS KEROSENE, ARE NOT TO BE USED TO CLEAN THE CARTRIDGE. THEY MAY CAUSE DETERIORATION OF THE CARTRIDGE. DO NOT OIL CARTRIDGE. DO NOT USE PRESSURIZED AIR TO CLEAN OR DRY CARTRIDGE.

KNOBS

COVER

CARTRIDGE

FOAM

PRE-CLEANER

FIG. 16

ENGINE OIL FILTER

Replace the engine oil filter every season or every other oil change if the tractor is used more than 100 hours in one year.

MUFFLER

Inspect and replace corroded muffler and spark arrester (if equipped) as it could create a fire hazard and/or damage.

SPARK PLUGS

Replace spark plugs at the beginning of each mowing season or after every 100 hours of operation, whichever occurs first. Spark plug type and gap setting are shown in “PRODUCT SPECIFICATIONS” section of this manual.

IN-LINE FUEL FILTER (See Fig. 17)

The fuel filter should be replaced once each season. If fuel filter becomes clogged, obstructing fuel flow to carburetor, replacement is required.

With engine cool, remove filter and plug fuel line sec- tions.

Place new fuel filter in position in fuel line with arrow pointing towards carburetor.

Be sure there are no fuel line leaks and clamps are properly positioned.

Immediately wipe up any spilled gasoline.

CLAMP

CLAMP

FUEL

FILTER

FIG. 17

CLEANING

Clean engine, battery, seat, finish, etc. of all foreign matter.

Keep finished surfaces and wheels free of all gasoline, oil, etc.

Protect painted surfaces with automotive type wax.

We do not recommend using a garden hose to clean your tractor unless the electrical system, muffler, air filter and carburetor are covered to keep water out. Water in engine can result in a shortened engine life.

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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 HOW to SET UP Your Tractor AssemblyTools Required for Assembly To Remove Tractor from CartonInstall Seat See Fig Check Deck Levelness To SET UP Your Mower for MulchingCheck Tire Pressure To Convert to Bagging or DischargingOperation Know Your Tractor HOW to USE Your Tractor To Operate on Hills To Adjust Gauge Wheels See FigTo Operate Mower See Fig To Transport See FigsADD Gasoline Before Starting the EngineCheck Engine OIL Level To Start Engine See FigMowing Tips Mulching Mowing TipsGeneral Recommendations Lubrication ChartCustomer Responsibilities Before Each USETractor Engine Engine OIL Filter Clean AIR INTAKE/COOLING AreasCleaning MufflerTo Level Mower Housing Service and AdjustmentsTo Install Mower See Fig To Remove Mower See FigRecheck side-to-side adjustment To Replace Mower Blade Drive Belt See Fig To Adjust Brake See FigBelt Installation To Replace Motion Drive Belt See FigTo Adjust Steering Wheel Alignment Transmission REMOVAL/REPLACEMENTTransaxle Motion Control Lever Neutral Adjustment See Fig Front Wheel TOE-IN/CAMBERTo Replace Headlight Bulb To Start Engine with a Weak Battery See FigReplacing Battery See Figs To Attach Jumper CablesTo Adjust Carburetor Interlocks and RelaysTo Replace Fuse Fuel System StorageOther Engine OILTroubleshooting Points OFF Service Notes Schematic Tractor - Model Number PR20H42STBElectrical 2122175566 163465175158 175141Chassis 159 169473X428 Cupholder 176554174930 5479JDrive 73900600 13705772140608 145212Steering Assembly KEY Part NO. NO.DESCRIPTION 173966Seat Assembly 174894Decals Wheels and TiresSpark Arrester EngineOptional Equipment 2581162797 170771 Control Throt171877 165391Mower Deck 17060514 71081010174493 173986Mower Lift 159460 Wire Asm Inner/Sprg W/plunger LT Limited Warranty Suggested Guide for Sighting Slopes for Safe Operation Sighting GuideParts and Service