Husqvarna HUSQVARNA YTH20K46 业主指南

Check V-belts for deterioration and wear after 100 hours 

of operation and replace if necessary. The belts are not 

ad just able. Re place belts if they begin to slip from wear.

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-

 si ble 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.

The transaxle was sealed at the factory and fluid main te -

nance is not required for the life of the transaxle.  Should 

the transaxle ever leak or require servicing, contact your 

near est au tho rized ser vice center/department.

TO CHANGE ENGINE OIL (See Figs. 13 and 14) 
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. 

024

63

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.

NOTE:  Although multi-viscosity oils (5W30, 10W30 etc.) 

improve starting in cold weather, they 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.    

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

SAE VISCOSITY GRADES

-20 0 30 40 

80 

100 

-30 

-20 0  20 30 

40 

 

F

 

C

32 

-10 

10 

60 

oil_visc_chart1_e

•  Unlock drain valve by pushing inward and turning 

coun ter clock wise. 

•  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-

 u al.

•  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. Tighten 

cap onto the tube securely when finished.

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 

man u al).