Husqvarna GTH2548 owner manual Engine

Page 18

MAINTENANCE

TO CLEAN BATTERY AND TERMINALS

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

Remove terminal guard.

Disconnect BLACK battery cable first then RED bat- tery 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 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 compressed air or high pressure sprayer to clean cool- ing 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

oil_visc_chart4_e

FIG. 15

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 Figs. 15 and 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 bottom fitting of drain valve and install the drain tube onto the fitting.

OIL DRAIN VALVE

YELLOW

CAP

 

 

CLOSED

DRAIN

2

AND

459

 

0

LOCKED

TUBE

 

 

 

POSITION

FIG. 16

Unlock drain valve by pushing inward and turning counterclockwise.

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 man- ual.

Use gauge on oil fill cap/dipstick for checking level. Insert dipstick into the tube and rest the oil fill cap on the tube. Do not thread the cap onto the tube when taking reading. Keep oil at “FULL” line on dipstick. Tighten cap onto the tube securely when finished.

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.

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Contents GTH2548 General Operation IV. ServiceSafe Operation Practices for RIDE-ON Mowers II. Slope OperationSafety Rules Table of Contents Unassembled Parts Assembly To Attach Nose Roller See Fig Assemble Gauge Wheels to Mower Deck See FigInstall Mower and Drive Belt See Figs Check for Proper Position of ALL Belts Check Tire PressureCheck Mower Levelness Check Brake SystemOperation 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 Purge TransmissionMaintenance General RecommendationsBefore Each USE Tractor Engine Cleaning Service and Adjustments To Install MowerTo Remove Mower See Fig To Level Mower Housing FRONT-TO-BACK Adjustment See FigsTo Replace Mower Drive Belt To Replace Mower Blade Secondary Drive Belt See FigTo Adjust Attachment Clutch See Fig To Check and Adjust BrakeTo Replace Motion Drive Belt See Fig To Adjust Steering Wheel ALIGN- Ment Transaxle Motion Control Lever Neutral Adjustment See FigTransmission REMOVAL/REPLACEMENT Front Wheel TOE-IN/CAMBERTo Attach Jumper Cables To Start Engine with a Weak Battery See FigReplacing Battery See Fig To Remove CABLES, Reverse OrderTo Adjust Carburetor To Adjust Throttle Control CableTo Adjust Choke Control To Replace Headlight BulbFuel System StorageOther Engine OILTroubleshooting Points With attachment clutch Service Notes Schematic Tractor Model NO. GTH2548 GTH2548A, Product no 57Electrical KEY Part Description Chassis and Enclosures 138Repair Parts Ground Drive 153Transaxle Hydro Gear Steering Assembly Repair Parts Engine Spark Arrester KIT KEY Part DescriptionLift Assembly Seat Assembly 532 18 SeatDecals Wheels & TiresMower Decb Mower Deck Warranty Statement Suggested Guide for Sighting Slopes for Safe Operation Only Ride UP and Down Hill Not Across Hill Degrees MAX532 18 99-42 Rev 5.25.04 TR/MH