Kohler Command PRO CH440 Owner's Manual - Page 9

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Spark Plugs

Electrical Shock can cause injury.

Do not touch wires while engine

is running.

Clean out spark plug recess. Remove plug and

replace.

1. Check gap using wire feeler gauge. Adjust

gap, see speciﬁ cation table for adjustment.

2. Install plug into cylinder head.

3. Torque plug to 20 ft. lb. (27 N·m).

Air Cleaner

NOTE: Running engine with cover positioned

for cold weather operation in normal

conditions can damage engine.

NOTE: Operating engine with loose or

damaged air cleaner components

could cause premature wear and

failure. Replace all bent or damaged

components.

NOTE: Paper element cannot be blown out

with compressed air.

Quad-Clean

™

Move bails on air cleaner cover down; remove

latches from under tabs on base; remove cover.

Turn air cleaner cover (counterclockwise) to

release tabs inside cover from base; remove

cover.

Precleaner:

1. Remove precleaner from paper element.

2. Replace or wash precleaner in warm water

with detergent. Rinse and allow to air dry.

3. Lightly oil precleaner with new engine oil;

squeeze out excess oil.

4. Reinstall precleaner over paper element.

Paper Element:

1. Separate precleaner from element; service

precleaner and replace paper element.

2. Install new paper element on base; install

precleaner over paper element.

Position air cleaner cover for normal operation

(sun decal out) or cold weather operation

(snowﬂ ake decal out).

Place latches under tabs on base; lift up bails to

secure cover.

Turn air cleaner cover (clockwise) to secure

tabs inside cover in base.

17 590 23 Rev. --

CAUTION

KohlerEngines.com

Low-Proﬁ le

1. Remove screw and air cleaner cover.

2. Remove foam element from base.

3. Wash foam element in warm water with

detergent. Rinse and allow to air dry.

4. Lightly oil foam element with new engine oil;

squeeze out excess oil.

5. Reinstall foam element into base.

6. Reinstall cover and secure with screw.

Oil Bath

Some engines are equipped with an oil bath

air cleaner. Follow maintenance and oil change

information speciﬁ ed in this section and in

Maintenance Schedule.

Move bails on air cleaner cover down; remove

latches from under tabs on base; remove cover.

1. Remove foam ﬁ lter cover from oil reservoir

cup. Remove foam ﬁ lter support plate and

foam ﬁ lter or foam elements.

2. CH270 engines: Replace or wash foam ﬁ lter

in warm water with detergent. Rinse and

allow to air dry.

CH395/CH440 engines: Replace or wash

foam elements in warm water with detergent.

Rinse and allow to air dry.

3. Lightly oil foam ﬁ lter or foam elements with

new engine oil; squeeze out excess oil.

4. Remove foam ﬁ lter support plate and oil

retainer ring from oil reservoir cup.

5. Remove oil reservoir cup from base. Empty

oil from cup and wash cup in warm water

with detergent. Rinse and dry cup.

6. Make sure O-ring is in place on air cleaner

base. Set oil reservoir cup on base.

7. Fill oil reservoir cup up to oil level mark with

same grade of oil as in crankcase. See Oil

Recommendations.

8. Reinstall oil retainer ring and foam ﬁ lter

support plate in oil reservoir cup.