Change Oil And Oil Filter; Service Oil Cooler; Oil Sentry - Kohler CH940-CH1000 Service Manual

Change Oil and Oil Filter

Change oil while engine is warm.
1. Clean area around oil fi ll cap/dipstick and drain plug.
Remove drain plug and oil fi ll cap/dipstick. Allow oil
to drain completely.
2. Clean area around oil fi lter; remove fi lter; wipe off
mounting surface. Reinstall drain plug. Tighten to
torque specifi cations.
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 cap/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.

Service Oil Cooler

NOTE: Oil cooler is mounted under cylinder shroud.
Removal of cylinder shroud is necessary to
access oil cooler.
1. Clean fi ns with a brush or compressed air.
2. Remove two screws securing oil cooler, and tilt to
clean back side.
3. Reinstall oil cooler.
62 690 01 Rev. C

Oil Sentry

(if equipped)
™
This switch is designed to prevent engine from starting
in a low oil or no oil condition. Oil Sentry
down a running engine before damage occurs. In some
applications this switch may activate a warning signal.
Read your equipment manuals for more information.
Oil Sentry pressure switch is installed in closure plate
™
pressure port. On engines not equipped with Oil Sentry
installation hole is sealed with a 1/8-27 N.P.T.F. pipe
plug.
Installation
1. Apply pipe sealant with Tefl on
Thread Sealant or equivalent) to threads of switch.
2. Install switch into tapped hole in closure plate.
3. Tighten switch to torque specifi cations.
Testing
Compressed air, a pressure regulator, pressure gauge,
and a continuity tester are required to test switch.
1. Connect continuity tester across blade terminal and
metal case of switch. With 0 psi pressure applied to
switch, tester should indicate continuity
(switch closed).
2. Gradually increase pressure to switch. As pressure
increases through range of 7-11 psi tester should
indicate a change to no continuity (switch open).
Switch should remain open as pressure is increased
to 90 psi maximum.
3. Gradually decrease pressure through range of 7-11
psi. Tester should indicate a change to continuity
(switch closed) down to 0 psi.
4. Replace switch if it does not operate as specifi ed.
KohlerEngines.com
Lubrication System
may not shut
™
® (Loctite ® PST ® 592™
™
29