Oil Cooler - Kohler Command PRO CH940 Service Manual

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 screws securing oil cooler and tilt to clean
back side.
3. Reinstall oil cooler and torque to 2.2 N·m (20 in. lb.).
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. Torque switch to 10.1 N·m (90 in. lb.).
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.
62 690 01 Rev. C
may not shut
™
™
® (Loctite ® PST ® 592™
KohlerEngines.com
Lubrication System
29