Cooling System - Kohler 8.5RMY Service Manual

3. Wash and oil the foam precleaner.
a. Wash the precleaner in warm soapy water.
b. Rinse the precleaner with warm water until the
water runs clear.
c. Squeeze out excess water and allow the
precleaner to air dry.
Note: Do not wring (twist) the precleaner or dry
it with compressed air.
d. Saturate the precleaner with new engine oil.
Squeeze out the excess oil.
4. Replace the paper element if it is dirty, bent, or
damaged.
Note: Do not wash the paper element or clean it
with compressed air, as both will damage
the element.
5. Reinstall the air cleaner.
a. Install the precleaner over the paper element.
b. Check the air cleaner base. Make sure it is
secure and not bent or damaged. Remove any
dirt or debris from the air cleaner base. Wipe
the base carefully so that no dirt falls into the
intake throat.
c. Check the element cover for damage and fit.
Replace all damaged air cleaner components.
Check the condition of the rubber seal on the air
cleaner stud and replace the seal if necessary.
d. Install the paper element, precleaner, element
cover, element cover nut, and air cleaner cover.
Secure the cover with the cover retaining knob
(finger-tighten only).
e. Check the element cover for damage and fit.
Replace all damaged air cleaner components.
Check the condition of the rubber seals and
replace them if necessary.
6. Enable the generator set.
a. Reconnect the power to the battery charger, if
equipped.
b. Reconnect the generator set engine starting
battery, negative (--) lead last.
12 Section 2 Scheduled Maintenance

2.5 Cooling System

Fans in the engine and generator draw cooling air
through the opening in the base next to the battery. The
air flows through a duct in the skid to the alternator at the
far end of the unit. UL-listed models have an air intake
for the alternator on the back of the housing as shown in
Figure 2-10. The air then flows over the exhaust
system, mixes with the engine exhaust, and is
discharged at the cabinet outlet. To prevent generator
set damage caused by overheating, keep the housing
cooling inlets and outlets clean and unobstructed at all
times. See Figure 2-9 and Figure 2-10.
Note: Do not block the generator set cooling air inlet or
mount other equipment above it. Overheating
and severe generator damage may occur.
R
POWER SYSTEM
Outlet
Figure 2-9 Cooling Air Intake and Exhaust, Weather
Housing Models
Outlet
1. Air intake (on back, UL-listed models)
Figure 2-10 Cooling Air Intake and Exhaust, Sound
Enclosure Models
A358000C-C
Inlet
1
GM24829
TP-5867 11/02
Inlet