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Maintenance Instructions LUBRICATION
48
1. Park the mower on a level surface with the
en gine stopped. The engine oil should be
warm before draining. If not warm from opera-
tion, start the engine and run a few minutes to
warm the oil.
2. Before removing the dipstick, clean the area
around it to keep any dirt or debris out of the
en gine.
3. Remove the dipstick and oil drain plug and drain
the oil into a suitable container. Be sure to allow
ample time for complete drainage.
Drain PlugOil Filter
Oil Drain/Oil Filter Location
4. Before removing the oil lter, clean the area
around the lter to keep dirt and debris out of
the engine.
5. Remove the old oil lter and wipe off 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 (Kohler 28-050-01). After-
market 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 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 “F” mark on the dipstick.
Crankcase capacity is 1.85 quarts (1.75 liters)
plus 1/2 pint (0.24 liters) for the new oil lter.
IMPORTANT: Check the dipstick reading be-
fore adding the last 1/2 pint of oil and ll only to
the “F” mark. DO NOT overll 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 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.)
Mower Deck Gearbox Lubrication
NOTE: These instructions apply to all mower decks
with gear-driven blades. Refer to DS52 or DS62
Mower Deck Lubrication in this section for the
DS52 or DS62 deck with belt-driven blades. Refer
to Mower Deck Spindle Lubrication in this section
for the DS42 Belt Drive deck with belt-driven blades.
On gear driven decks, the mower deck gearboxes
(tee gearbox and blade drive gearboxes) are
connected as a unitized as sembly, and oil ows
freely between them. The gear boxes are permanently
lubricated (oil lled) and sealed requiring no
scheduled lubrication. Howev er, the gearbox oil
seals should be checked every 25 hours for
indication of an oil leak; particularly the lower
seals on the blade drive gearboxes should be
inspected, since they operate in a dirty en vironment.
If an oil leak is noted, replace the oil seal and
relubricate the gearbox assembly as follows:
1. Remove gearbox cover (footrest). Deck orien-
tation should be the normal operating position.