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Maintenance Instructions
LUBRICATION
43
Oil Fill and
Dipstick
Dipstick and Oil Fill - Model MBK
(View from Above Left Side of Tractor)
Oil Filter
Oil Drain
Oil Drain and Oil Filter Locations - Model MBK
(View from the Rear Right Side of Tractor)
4. Before removing the oil filter, clean the area
around the filter to keep dirt and debris out of
the engine.
5. Remove the old oil filter and wipe off the filter
mounting surface on the engine.
6. Apply a thin coating of clean oil to the rubber
gasket on the replacement oil filter.
IMPORTANT:
Use
ONLY
oil filters from the en-
gine manufacturer (Kohler 12-050-01). After-
market oil filters may not seal properly and/or
may not have the correct pressure relief valve
for proper lubrication.
7. Install the new oil filter on the engine. Turn the
filter clockwise until the rubber gasket contacts
the sealing surface, then tighten an additional
1/2 turn.
8. Reinstall the drain plug. Make sure it is tight-
ened to 10 ft-lb (13.6 N
·
m).
9. Fill the crankcase with new, clean oil. Use only
crankcase lubricants recommended by the en-
gine manufacturer. Refer to
Specifications
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 as-
sure proper lubrication in hot weather.
Fill up
to, but not above, the “F” mark
on the dip-
stick. Crankcase capacity is 1.85 quarts (1.75
liters) plus 1/2 pint (0.24 liters) for the new oil
filter.
IMPORTANT:
Check the dipstick reading be-
fore adding the last 1/2 pint of oil and
fill only
to
the “F” mark.
DO NOT
overfill the crankcase
(oil above “F” 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 filter. Stop the engine, recheck the oil
level, and add oil if necessary. (When the en-
gine is first operated with a new oil filter, the oil
level drops slightly as the filter is filled with oil.)
Grease Fitting and Oil Point Lubrication
Lubricate the grease fittings 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 fittings 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
8 hours
of running time.
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.