Poulan 421892 owner manual Engine, Cleaning

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MAINTENANCE

AUGER GEAR CASE

The gear case was filled with lubricant to the proper level at the factory. The only time the lubricant needs attention is if service has been performed on the gear case.

If lubricant is required, use only Ronex ED #1 grease.

TRACTION DRIVE SYSTEM

DO NOT lubricate the drive components inside the snow thrower. The sprockets, hex shafts, drive disc and friction wheel require no lubrication. The bearings and bushings are lifetime lubricated and require no maintenance.

CAUTION: Any lubricating of the above compo- nents can cause contamination of the friction wheel and damage to the drive system of your snow thrower.

ENGINE

See engine manual.

LUBRICATION

Use only high quality detergent oil rated with API service classification SG–SL. Select the oil's SAE viscosity grade according to your expected operating temperature.

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.

Changetheoilafterevery25hoursofoperationoratleastonce a year if the snow thrower is not used for 25 hours in one year.

Check the crankcase oil level before starting the engine and after each five (5) hours of continuous use. Tighten oil fill cap / dipstick securely each time you check the oil level.

TO CHANGE ENGINE OIL

Determine temperature range anticipated before next oil change. All oil must meet API service classification SG–SL.

Be sure snow thrower is on level surface.

Oil will drain more freely when warm.

Catch oil in a suitable container.

NOTE: The left side wheel may be removed from snow thrower for easier access to the oil drain plug and place- ment of a suitable container. The unit tilted, resting on the frame with the left wheel removed, will help drain any oil trapped inside the engine. (See “TO REMOVE WHEELS” in the Service and Adjustments section of this manual).

1.Remove safety ignition key and disconnect spark plug wire from spark plug. Place wire where it cannot come in contact with spark plug.

2.Clean area around drain plug.

3.Remove drain plug and drain oil in a suitable container.

4.Install drain plug and tighten securely.

5.Wipe off any spilled oil from snow thrower and engine.

6.Install left wheel (if removed for draining oil). Be sure to install klick pin into proper hole in wheel axle (See “TO REMOVE WHEELS” in the Service and Adjustments section of this manual).

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

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

9.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.

10.Wipe off any spilled oil.

MUFFLER

Inspect and replace corroded muffler as it could create a fire hazard and/or damage.

SPARK PLUG

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

CLEANING

IMPORTANT: For best performance, keep snow thrower housing free of any dirt or trash. Clean the outside of your snow thrower after each use.

WARNING: Remove safety ignition key and disconnect spark plug wire from spark plug. Place wire where it cannot come in contact with spark plug.

Keep finished surfaces/wheels free of gasoline, oil, etc.

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

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Contents Snow Thrower Model NumberSafe Operation Practices for Walk-Behind Snow Throwers Table of Contents Chute Deflecto R Remote Cont ROL Parts Packed Separately in CartonEXT RA Shear Bolts and Nuts Rotator Head MountingUnfold Upper Handle Assembly / PRE-OPERATIONHOW to SET UP Your Snow Thrower Remove Snow Thrower from CartonInstall Auger Control ROD See Figs Install Traction Drive Control ROD See FigsInstall Discharge Chute / Chute Rotator Head See FigCheck Tire Pressure Ignition KEY OperationKnow Your Snow Thrower PrimerMeets A.N.S.I. Safety Requirements Deflector remote control lever used to changeDischarge chute control lever used to change the di Stopping HOW to USE Your Snow ThrowerTo Move Forward and Backward See Fig Using the CLEAN-OUT Tool See FigADD Gasoline See Fig To Adjust Skid Plates See FigBefore Starting the Engine Check Engine OIL Level See FigIf Recoil Starter has Frozen Snow Throwing TipsTo Start Engine Before StoppingMaintenance Engine CleaningShear Bolts See Fig Service and AdjustmentsTo Adjust Snow Thrower Height Chute DeflectorTo Replace Belts See Fig Storage Other TroubleshootingExploded KEY Part Description Scrapper BAR Auger HousingAuger Assembly LH Auger Assembly RHBearing Plug Auger BearingPlastic Washer Knob BlackPOP Rivet WasherRotator Pivot Bracket LEVER/CABLE Rotator AssemblyCable Assembly Rotator HeadHandle Knob SpacerRetainer Knob REDPivot Support Panel Bracket LH Panel Bracket RHHandle Grip Lower TubeShifter ROD Bottom Impeller ROD AssemblyTraction ROD Assembly Shifter ROD TOPConsole Panel 183352Drive END Plate Speed Selector AssemblyDrive Plate Assembly Shoulder ScrewClik PIN Axle ShaftRoll PIN 3/16 SprocketBelt Cover Tecumseh Engine ModelFrame Engine Mount Plate187866X421 Wheel Assembly LHSafety Ignition KEY 187831X421DECAL, Poulan PRO DECAL, DangerDECAL, Poulan PRO, HP/24 DECAL, DANGER, DeflectorLimited Warranty