Poulan PD20PH48STC owner manual Cleaning, Clean AIR INTAKE/COOLING Areas, Muffler, Spark Plugs

Page 19

MAINTENANCE

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. 17)

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.

Loosen knob and remove cover.

TO SERVICE PRE-CLEANER

Slide foam pre-cleaner off cartridge.

Wash it in liquid detergent and water.

Squeeze it dry in a clean cloth. Allow it to dry.

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

TO SERVICE CARTRIDGE

Replace a dirty, bent, or damaged cartridge.

NOTE: Do not wash the paper cartridge or use pressurized air, as this will damage the cartridge.

Remove nut and cartridge plate.

Reinstall the pre-cleaner (cleaned and oiled) over the paper cartridge.

Check rubber seal for damage and proper position around stud. Replace if necessary.

Reassemble air cleaner, cartridge plate, and nut.

Reinstall air cleaner cover and secure by tightening knob.

 

CARTRIDGE

 

 

FOAM

01670

 

PRE-CLEANER

 

 

 

CARTRIDGE

 

KNOB

PLATE

RUBBER

 

 

 

 

 

SEAL

 

NUT

 

FIG. 17

MUFFLER

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

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.

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.

IN-LINE FUEL FILTER (See Fig. 18)

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. 18

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 or pressure washer to clean your tractor unless the engine and trans- mission are covered to keep water out. Water in engine or transmission will shorten the useful life of your tractor. Use compressed air or a leaf blower to remove grass, leaves and trash from tractor and mower.

19

Image 19
Contents PD20PH48STC Safety Rules Safety Rules Table of Contents Mower Unassembled PartsSteering Wheel Gauge Wheels Seat Nose RollerTo Remove Tractor from Carton AssemblyTools Required for Assembly HOW to SET UP Your TractorAssemble Gauge Wheels to Mower Deck See Fig Install Seat See FigTo Attach Nose Roller See Fig Install Mower and Drive Belt See FigsCheck Brake System Check Tire PressureCheck Mower Levelness Check for Proper Position of ALL BeltsOperation Know Your Tractor HOW to USE Your Tractor To Transport See Figs To Adjust Gauge Wheels See FigTo Operate Mower See Fig To Operate on HillsADD Gasoline Before Starting the EngineTowing Carts and Other ATTACH- Ments Check Engine OIL LevelMowing Tips Purge TransmissionAutomatic Transmission Warm UP Before Each USE MaintenanceLubrication Chart General RecommendationsTractor Engine Spark Plugs CleaningClean AIR INTAKE/COOLING Areas MufflerTo Install Mower Service and AdjustmentsTo Remove Mower See Fig To Replace Mower Drive Belt To Level Mower HousingTo Replace Mower Blade Secondary Drive Belt See Fig To Check and Adjust Brake See FigFront Wheel TOE-IN/CAMBER Transmission REMOVAL/REPLACEMENTTo Adjust Steering Wheel ALIGN- Ment To Replace Motion Drive Belt See FigTo Replace Headlight Bulb Replacing Battery See FigTo Start Engine with a Weak Battery See Fig To Remove Wheel for Repairs See FigInterlocks and Relays To Adjust CarburetorTo Replace Fuse Engine OIL StorageOther Fuel SystemProblem Cause Correction Troubleshooting PointsWith attachment clutch Tractor Model Number PD20PH48STC SchematicElectrical KEY Part Description Chassis and Enclosures Repair Parts Drive KEY Part NO. NO. Description DriveSteering Assembly 180656 Wheel Steering Engine Stem Tank Fuel Seat Assembly Wheels & Tires DecalsMower Lift KEY Part NO. NO. Description Mower Deck 175820 Pulley Idler Flat Limited Warranty Suggested Guide for Sighting Slopes for Safe Operation Parts and Service