Engine Lubrication - Husqvarna YTH18542 Operator's Manual

V-BELTS
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.
TRANSAXLE MAINTENANCE
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 transmission.
• 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 cool ing fins.
TRANSAXLE PUMP FLUID
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.
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
5W-30
-20 0 30
F
C -20
-30 -10
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
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/0°C. 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 Fig. 16 - 17)
Determine temperature range expected before oil change.
All oil must meet API service classification SG-SL.
• Ensure tractor is on level surface.
• Oil will drain more freely when warm.
• Catch oil in a suitable container.
MAINTENANCE
SAE 30
32 40 60 80
0 10
20 30
Fig. 16
LOWER DASH COVER REMOVAL
• Raise hood.
• Remove fastener from lower dash cover.
CAUTION: Remove lower dash cover carefully to ensure
cover tabs are not broken.
• Slide lower dash cover up to release cover tabs from
tapered slots in lower dash and remove.
LOWER DASH COVER
• Remove oil fill cap/dipstick. Be careful not to allow dirt
to enter the engine when changing oil.
CAUTION: If engine has been operated
for an extended period of time immedi-
ately prior to draining oil, oil will be hot.
100
40
• Slide oil drain extension under oil drain hole (drain hole
may be flush with or protrude from engine block side wall).
• Make sure back face of oil drain extension is flush with
engine side wall.
• Make sure bottom lip of oil drain extension is lined up
with bottom of oil drain hole.
• Position a container to catch oil directly under front end
of oil drain extension.
• Slide a 1/2" (12 point) socket mounted on an extension
onto oil drain plug.
• Loosen plug while holding the oil drain extension firmly
in place.
• Drain oil into container.
• After oil has drained completely, reinstall oil drain plug.
(Do not tighten more than 13 Ft. Lbs./17 Nm)
• 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.
Ensure dipstick cap is tightened securely for accurate
reading. Keep oil at "FULL " line on dipstick. Tighten
cap onto the tube securely when finished.
16
FASTENER
TABS
Fig. 17
OIL DRAIN HOLE
OIL DRAIN PLUG
Fig.18
SLOTS
OIL DRAIN
EXTENSION