HP 18-26 manual Service Precleaner and Air Cleaner Element

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, Part No. 12 050 01.

Replace the oil filter as follows:

Service Precleaner and Air Cleaner Element

This engine is equipped with a replaceable, high density paper air cleaner element. Some engines are also equipped with an oiled, foam precleaner which surrounds the paper element. See Figure 10.

1.	Drain the oil from the engine crankcase.
2.	Allow the oil filter to drain.

Air Cleaner Cover

Cover Knob

Element

Cover Nut

3.	Before removing the oil filter, clean the area
	around the oil filter to keep dirt and debris out of
	the engine. Remove the old filter. Wipe off the
	surface where the oil filter mounts.
4.	Place a new replacement filter 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 bottom of the
	threads. Allow a minute or two for the oil to be
	absorbed by the filter material.
5.	Put a drop of oil on your fingertip and wipe it on the
	rubber gasket.
6.	Install the replacement oil filter to the filter adapter
	or oil cooler. Turn the oil filter clockwise until the
	rubber gasket contacts the filter adapter or oil
	cooler, then tighten the filter an additional
	1/2 turn.
7.	Reinstall the drain plug. Make sure it is tightened
	to 13.6 N·m (10 ft. lb.) torque.
8.	Fill the crankcase with new oil of the proper type to
	the “F” mark on the dipstick. Add 0.24 L (1/2 pint)
	of oil for the filter capacity.
9.	Start the engine and check for oil leaks. Correct
	any leaks before placing the engine into service.
	Check oil level to be sure it is up to but not over the
	“F” mark.

Service Oil Cooler

Some engines are equipped with an oil cooler. Inspect and clean the oil cooler every 100 hours of operation (more frequently under severe conditions). Oil cooler must be kept free of debris.

To service the oil cooler, clean off the outside fins with a brush or with compressed air.

Element Cover

Element

Precleaner

Figure 10. 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 unfiltered 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 often 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.

5.Reinstall the precleaner over the paper element.

6.Reinstall the air cleaner cover. Secure cover with the cover retaining knob.

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