Maintenance Instructions LUBRICATION
59
Drain Plug
Oil Drain Location
(View from Left Side of Tractor)
4. Before removing the oil lter, clean the area
around the lter to keep dirt and debris out of
the engine.
Oil Filter
Oil Filter Location
5. Remove the old oil lter and wipe o the lter
mounting surface on the engine.
6. Apply a thin coating of clean oil to the rubber
gasket on the replacement oil lter.
IMPORTANT: Use ONLY oil lters from the en-
gine manufacturer (Kubota HH150-32430). Af-
termarket oil lters may not seal properly and/or
may not have the correct pressure relief valve
for proper lubrication.
7. Install the new oil lter on the engine. Turn the
lter clockwise until the rubber gasket contacts
the sealing surface, then tighten an additional
1/2 to 3/4 turn.
8. Reinstall the drain plug. Make sure it is tight-
ened to 10 lb
·ft (14 N·m).
9. Fill the crankcase with new, clean oil. Use only
crankcase lubricants recommended by the en-
gine manufacturer. Refer to Specications in
this manual or the engine owner’s manual. Use
the recommended oil viscosity for the expected
ambient temperature. Oil with the correct vis-
cosity will aid starting in cold weather and assure
proper lubrication in hot weather. Fill up to, but
not above, the upper mark on the dipstick.
Crankcase capacity is 3.4 quarts (3.2 liters) plus
1/2 pint (0.24 liters) for the new oil lter.
IMPORTANT: DO NOT use oil that is rated for
gasoline engines only (API SE/SF). This will
cause problems with a diesel engine.
IMPORTANT: Check the dipstick reading be-
fore adding the last 1/2 pint of oil and ll only to
the upper mark. DO NOT overll the crankcase
(oil above upper mark) as this CAN result in en-
gine overheating, loss of power, and possible
engine damage.
10. Start the engine and check for oil leaks around
the oil lter. Stop the engine, recheck the oil
level, and add oil if necessary. (When the en-
gine is rst operated with a new oil lter, the oil
level drops slightly as the lter is lled with oil.)
Grease Fitting and Oil Point Lubrication
Lubricate the grease ttings and oil points after ev-
ery 25 hours of operation. Lubricate more often
when operating in dusty or dirty conditions. Use
SAE general purpose lithium or molybdenum base
grease for grease ttings and light machine oil
(SAE 10) to lubricate oil points. Lubricate the
locations shown in the Chassis and Deck
Lubrication Points illustration.
NOTE: PTO universal joints (on the deck and trac-
tor) require routine lubrication after every 25
hours of running time. Remove tractor PTO quick
disconnect tube assembly for easy access to
grease ttings.
NOTE: The best way to lubricate the PTO tube half
of the universal joint assembly is to remove it from
the tractor. See instructions for removing and install-
ing PTO quick coupler, refer to Deck Installation in
Mower Deck Installation on Tractor in the Assem
bly Instructions.
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