Poulan 178112 owner manual Engine

Page 18

CUSTOMER RESPONSIBILITIES

NOTE: The original equipment battery on your tractor is maintenance free. Do not attempt to open or remove caps or covers. Adding or checking level of electrolyte is not necessary.

TO CLEAN BATTERY AND TERMINALS

Corrosion and dirt on the battery and terminals can cause the battery to “leak” power.

Open battery box door.

Disconnect BLACK battery cable first then RED battery cable and remove battery from tractor.

Rinse the battery with plain water and dry.

Clean terminals and battery cable ends with wire brush until bright.

Coat terminals with grease or petroleum jelly.

Reinstall battery (See “REPLACING BATTERY” in the SERVICE AND ADJUSTMENTS section of this manual).

V-BELTS

Check V-belts for deterioration and wear after 100 hours of operation and replace if necessary. The belts are not adjustable. Replace belts if they begin to slip from wear.

TRANSAXLE COOLING

The transmission fan and cooling fins should be kept clean to assure proper cooling.

Do not attempt to clean fan or transmission while engine is running or while the transmission is hot. To prevent possible damage to seals, do not use high pressure water or steam to clean transaxle.

Inspect cooling fan to be sure fan blades are intact and clean.

Inspect cooling fins for dirt, grass clippings and other materials. To prevent damage to seals, do not use compressed air or high pressure sprayer to clean cooling fins.

TRANSAXLE PUMP FLUID

The transaxle was sealed at the factory and fluid mainte- nance is not required for the life of the transaxle. Should the transaxle ever leak or require servicing, contact your nearest authorized service center/department.

ENGINE

LUBRICATION

Only use high quality detergent oil rated with API service classification SF-SJ. Select the oil’s SAE viscosity grade according to your expected operating temperature.

SAE VISCOSITY GRADES

 

 

 

 

 

 

 

 

 

 

 

SAE 30

 

 

 

 

 

 

 

5W-30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

°F

-20°

 

 

30° 32° 40°

 

 

60°

80°

 

100°

°C

-30°

-20°

-10°

10°

20°

30°

40°

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

FIG. 14

NOTE: Although multi-viscosity oils (5W30, 10W30 etc.) improve starting in cold weather, these multi-viscosity oils will result in increased oil consumption when used above 32°F. Check your engine oil level more frequently to avoid possible engine damage from running low on oil.

Change the oil after every 50 hours of operation or at least once a year if the tractor is not used for 50 hours in one year.

Check the crankcase oil level before starting the engine and after each eight (8) hours of operation. Tighten oil fill cap/ dipstick securely each time you check the oil level.

TO CHANGE ENGINE OIL (See Figs. 14 and 15)

Determine temperature range expected before oil change. All oil must meet API service classification SF-SJ.

Be sure tractor is on level surface.

Oil will drain more freely when warm.

Catch oil in a suitable container.

Remove oil fill cap/dipstick. Be careful not to allow dirt to enter the engine when changing oil.

Remove cap from bottom fitting of drain valve and install the drain tube onto the fitting.

Unlock drain valve by pushing inward and turning coun- terclockwise.

To open, pull out on the drain valve.

After oil has drained completely, close and lock the drain valve by pushing inward and turning clockwise until the pin is in the locked position as shown.

Remove the drain tube and replace the cap onto to the bottom fitting of the drain valve.

Refill engine with oil through oil fill dipstick tube. Pour slowly. Do not overfill. For approximate capacity see “PRODUCT SPECIFICATIONS” section of this manual.

Use gauge on oil fill cap/dipstick for checking level. Be sure dipstick cap is tightened securely for accurate reading. Keep oil at “FULL” line on dipstick.

CLOSED

OIL DRAIN VALVE

AND

 

LOCKED

 

POSITION

 

 

DRAIN

CAP

TUBE

 

FIG. 15

CLEAN AIR SCREEN

Air screen must be kept free of dirt and chaff to prevent engine damage from overheating. Clean with a wire brush or compressed air to remove dirt and stubborn dried gum fibers.

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Contents PR20H42STC 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 CAR- TONInstall Seat See Fig To SET UP Your Mower for MulchingCheck Deck Levelness To Convert to Bagging or DISCHARG- INGCheck Tire Pressure Check for Proper Position of ALL BeltsOperation Know Your Tractor HOW to USE Your Tractor To USE Throttle Control see FIGTo Operate on Hills To Adjust Gauge Wheels See FigTo Operate Mower See Fig To Transport See FigsCheck Engine OIL Level Before Starting the EngineTowing Carts and Other ATTACH- Ments ADD GasolineMowing Tips Purge TransmissionMulching Mowing Tips Customer Responsibilities General RecommendationsBefore Each USE Tractor 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 Schematic Tractor - Model Number PR20H42STCElectrical KEY Part Description Chassis Screw Hex Wshd 8-18 x 7/8 Drive 39 74760648 Bolt 175461 Steering Assembly KEY Part NO. NO.DESCRIPTION Seat Assembly Decals Wheels and TiresEngine Optional EquipmentSpark Arrester 170771 Control Throt Mower Deck Repair Parts Mower Lift 159460 Wire Asm Inner/Sprg W/plunger LT Limited Warranty Suggested Guide for Sighting Slopes for Safe Operation Sighting GuideParts and Service