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Engine Service Manual

ManualsBrandsCub Cadet ManualsGarden Tractor(50") 25HP Kohler Garden Tractor
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50
Lubrication System
KohlerEngines.com 32 690 03 Rev. I
OIL RECOMMENDATIONS
Refer to Maintenance.
CHECK OIL LEVEL
NOTE: To prevent extensive engine wear or damage,
never run engine with oil level below or above
operating range indicator on dipstick.
Ensure engine is cool. Clean oil fi ll/dipstick areas of any
debris.
1. Remove dipstick; wipe oil off.
2. Reinsert dipstick into tube; press completely down.
3. Remove dipstick; check oil level. Level should be at
top of indicator on dipstick.
4. If oil is low on indicator, add oil up to top of indicator
mark.
5. Reinstall and secure dipstick.
CHANGE OIL AND FILTER
Change oil while engine is warm.
1. Clean area around oil fi ll/dipstick. Remove drain plug
and oil fi ll/dipstick. Allow oil to drain completely.
2. Clean area around oil fi lter. Place a container under
fi lter to catch any oil and remove fi lter. Wipe off
mounting surface. Reinstall drain plug. Torque to
13.6 N·m (10 ft. lb.).
3. Place new fi lter in shallow pan with open end up. Fill
with new oil until oil reaches bottom of threads. Allow
2 minutes for oil to be absorbed by fi lter material.
4. Apply a thin fi lm of clean oil to rubber gasket on new
fi lter.
5. Refer to instructions on oil fi lter for proper
installation.
6. Fill crankcase with new oil. Level should be at top of
indicator on dipstick.
7. Reinstall oil fi ll/dipstick and tighten securely.
8. Start engine; check for oil leaks. Stop engine; correct
leaks. Recheck oil level.
9. Dispose of used oil and fi lter in accordance with
local ordinances.
A
B
C
A
A Oil Fill/Dipstick B Oil Drain Plug C Oil Filter
This engine uses a combination pressure/splash lubrication system, delivering oil under pressure to crankshaft,
connecting rod and main bearing surfaces. Other component areas are splash lubricated.
A high-effi ciency gerotor oil pump maintains high oil fl ow and oil pressure, even at low speeds and high operating
temperatures. A pressure relief valve limits maximum pressure of system. Oil pan must be removed to service oil
pickup and oil pump.
Lubrication Components