Kohler CH940 User Manual Page 11

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11
To access and service the oil cooler, remove the top
mounting screw and loosen the two side screws, then
lift off the No. 2 side cylinder shroud. If required,
remove the two screws holding the oil cooler to the
blower housing. Pull the cooler away from the blower
housing. Clean both sides of the cooler with a brush as
shown in Figures 17 and 18, or with compressed air.
After cleaning, reattach the oil cooler to the lower
blower housing with the two mounting screws.
Figure 17. Cleaning Top of Oil Cooler.
Figure 16. Oil Cooler.
Air Cleaners
These engines use a heavy-duty style air cleaner (see
Figure 19) or a flat air cleaner (see Figure 23). These
systems are CARB/EPA certified and the components
should not be altered or modified in any way.
NOTE: Lift or move this engine using the lifting
strap and lifting point shown in Figure 1.
DO NOT lift the engine by the air cleaner.
Heavy-Duty Air Cleaner
The heavy-duty air cleaner consists of a cylindrical
housing mounted to the carburetor and intake
manifold. The housing contains a paper element and
inner element, designed for longer service intervals.
Figure 19. Heavy-Duty Style Air Cleaner.
Service
Weekly and every 150 hours: Check filter minder (if
equipped), unhook the two retaining clips on each end
and remove the end caps. Perform inspection of the
paper element and inlet screen area.
Seasonally or every 300 hours of operation (more
often under extremely dusty or dirty conditions),
replace the paper element and check the inner
element. Follow these steps.
1. Unhook the two retaining clips on each end and
remove the end caps from the air cleaner housing.
2. Check and clean the screen area on the inlet side.
Pull the air cleaner paper element out of the
housing on opposite side. See Figures 20 and 21.
Figure 18. Cleaning Underside of Oil Cooler.
Figure 20. Accessing Inlet Screen.
Oil Cooler
Inlet
Screen
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