10
Figure 9. Crankcase Mounted Oil Cooler.
To service the crankcase mounted oil cooler, clean off
the outside fins with a brush or with compressed air.
Figure 10. Blower Housing Mounted Oil Cooler.
To service the blower housing mounted style oil cooler,
clean the outside of fins with a brush. See Figure 10.
Remove the two screws holding the cooler unit to the
blower housing. Tilt the cooler downward as shown in
Figure 11. Clean the inside of the cooler with a brush,
as shown in Figure 11, or with compressed air. After
cleaning, reinstall the oil cooler to the blower housing
with the two mounting screws.
Figure 8. Oil Drain Plugs and Oil Filter.
Service Oil Cooler
Some engines are equipped with an oil cooler. One
style of oil cooler mounts on the engine crankcase and
has the oil filter on it (see Figure 9). The other style of
oil cooler is mounted on the blower housing (see
Figure 10), separate from the oil filter.
Inspect and clean oil cooler every 100 hours of
operation (more frequently under severe conditions).
Oil cooler must be kept free of debris.
Oil Drain Plug
Oil Filter
Oil Drain Plug
Figure 11. Cleaning Blower Housing Mounted Oil
Cooler.
Change Oil Filter
Replace the oil filter at least every other oil change
(every 200 hours of operation). Always use a
genuine Kohler oil filter. Use chart below to determine
part number to order.
Oil Filter Part No.
12 050 01-S
52 050 02-S
Length
2-1/2"
3-3/8"
