10
Change Oil Filter
Replace the oil fi lter at least every other oil change
(every 200 hours of operation). Always use a genuine
Kohler oil fi lter. 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"
Replace the oil fi lter as follows:
1. Drain the oil from the engine crankcase by
removing one of the drain plugs and allowing
ample time for complete drainage.
2. Before removing the oil fi lter, clean the area
around the oil fi lter to keep dirt and debris out
of the engine. Remove the old fi lter. Wipe off the
surface where the oil fi lter mounts.
3. Place a new replacement fi lter in a shallow pan
with the open end up. Pour new oil of the proper
type in through the threaded center hole. Stop
pouring when the oil reaches the bo om of the
threads. Allow a minute or two for the oil to be
absorbed by the fi lter material.
4. Apply a thin fi lm of clean oil to the rubber gasket
on the new fi lter.
5. Install the new oil fi lter to the fi lter adapter or oil
cooler. Refer to instructions on the oil fi lter for
proper installation.
6. Reinstall the drain plug. Make sure it is tightened
to 13.6 N·m (10 . lb.) torque.
7. Fill the crankcase with new oil of the proper type
to the F mark on the dipstick.
8. Test run the engine to check for leaks. Stop the
engine, allow a minute for the oil to drain down,
and recheck the level on the dipstick. Add more
oil as necessary so the oil level is up to but not
over the F mark on the dipstick.
Service Precleaner and Air Cleaner Element
This engine is equipped with a replaceable, high
density paper air cleaner element. Most engines are
also equipped with an oiled, foam precleaner which
surrounds the paper element. See Figures 8 and 9.
Air Cleaner Cover Knob
Air Cleaner Cover
Figure 8. Air Cleaner Housing Components.
Element Cover
Element Cover Nut
Element
Precleaner
Figure 9. Air Cleaner System Components.
Check the air cleaner daily or before starting the
engine. Check for a buildup of dirt and debris around
the air cleaner system. Keep this area clean. Also
check for loose or damaged components. Replace all
bent or damaged air cleaner components.
NOTE: Operating the engine with loose or
damaged air cleaner components could
allow unfi ltered air into the engine causing
premature wear and failure.
Service Precleaner
If so equipped, wash and reoil the precleaner every 25
hours of operation (more o en under extremely dusty
or dirty conditions).
1. Loosen the cover retaining knob and remove the
cover.
2. Remove the precleaner from the paper element.
3. Wash the precleaner in warm water with
detergent. Rinse the precleaner thoroughly until
all traces of detergent are eliminated. Squeeze out
excess water (do not wring). Allow the precleaner
to air dry.
4. Saturate the precleaner with new engine oil.
Squeeze out all excess oil.
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