Husqvarna 960430120 owner manual Engine

Page 16

MAINTENANCE

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 pos- sible 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 com- pressed 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 SG-SL. Select the oil’s SAE viscosity grade according to your expected operating temperature.

SAE VISCOSITY GRADES

 

 

 

 

 

 

 

 

 

 

10W30

 

 

 

 

 

 

 

5W-30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

-20

0

 

 

30 32 40

 

60

 

80

100

C

-30

-20

-10

0

10

20

30

40

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

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.

TO CHANGE ENGINE OIL (See Fig. 16)

Determine temperature range expected before oil change. All oil must meet API service classification SG-SL.

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 yellow cap from end of drain valve and install the drain tube onto the fitting.

Unlock drain valve by pushing inward and turning counterclockwise.

 

OIL DRAIN VALVE

CLOSED

 

AND

 

LOCKED

 

POSITION

 

YELLOW CAP

DRAIN

TUBE

 

Fig. 16

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. For accurate reading, insert dipstick into the tube and push down firmly into place before removing. Keep oil up to, but not over, the “FULL” line on dipstick. Push dipstick down firmly into the tube when finished.

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. See engine manual.

ENGINE COOLING SYSTEM

To ensure 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. Ensure 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.

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.

AIR FILTER

Your engine will not run properly using a dirty air filter. Service air cleaner more often under dusty conditions. See engine manual.

MUFFLER

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

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Contents YTH21K46 Safety Rules Safe Operation Practices for Ride-On MowersGeneral Operation II. Slope OperationService General ServiceIII. Children IV. TowingTable of Contents Assembly Tools Required for AssemblyUnassembled Parts ToremovetractorfromcartonCheck Tire Pressure Check Deck LevelnessCheck for Proper Position of ALL Belts Check Brake SystemOperation Know Your Tractor HOW to USE Your Tractor To SET Parking Brake See FigStopping See Fig To USE Throttle Control D See FigTo Adjust Mower Cutting Height See Fig To Adjust Gauge Wheels See FigTo Move Forward and Backward See Fig To USE Cruise Control J See FigService REMINDER/HOUR Meter Using the Reverse Operation SystemReverse Operation System ROS See Fig To Operate on HillsBefore Starting the Engine Check Engine OIL LevelADD Gasoline To Start Engine See FigMowing Tips Purge TransmissionMaintenance MaintenanceGeneral Recommendations ScheduleBattery TractorBlade Care Blade Removal See FigEngine Cleaning Spark PlugsIN-LINE Fuel Filter See Fig Deck Washout Port See FigTo Install Mower See Fig Service and AdjustmentsTo Remove Mower See Fig Install belt on engine pulley M, in belt keepers G Visual SIDE-TO-SIDE Adjustment See Fig To Level MowerBelt Installation To Replace Mower Blade Drive Belt See FigTo Check Brake To Replace Motion Drive Belt See FigTo Start Engine with a Weak Battery See Fig Replacing Battery See FigFront Wheel TOE-IN/CAMBER To Remove Wheel for Repairs See FigTransmission Storage OtherFuel System Engine OILTroubleshooting Points Problem Cause CorrectionEngine continues Schematic Tractor - Model Number YTH21K46 96045002901, Product no 45Tractor - Model Number YTH21K46 96045002901, Product no 45 Electrical KEY Part DescriptionChassis Tractor - Model Number YTH21K46 96045002901, Product no 45 Drive Tractor - Model Number YTH21K46 96045002901, Product no 45 Spark Arrester KIT EngineTractor - Model Number YTH21K46 96045002901, Product no 45 Steering Assembly Tractor - Model Number YTH21K46 96045002901, Product no 45 Mower Deck KEY Part NO. no Description Mower Lift 100 101Seat Assembly 532 43 SeatDecals Wheels and TiresSuggested Guide for Sighting Slopes for Safe Operation 05.18.11 CL