Craftsman 143.991200 Specifications download pdf (Page 9)

DISASSEMBLY PROCEDURE

1. Unlock the tabs or remove the screws or wing

nuts holding the air cleaner cover in place.

2. Remove the hex nuts holding the element

down if equipped. New nuts are supplied with

a new filter and are to be used for proper

sealing.

3. Clean the excess contaminants out of the air

cleaner body before removing the old

element.

4. Remove the old element and the polyurethane

pre-cleaner if equipped.

5. On air cleaners that use a flocked screen

under the polyurethane element, remove the

air cleaner assembly from the carburetor

before removing the flocked screen. This

prevents dirt from entering the carburetor

(diag 3).

6. Clean the inside of the cover and body,

remove the old gasket between the carburetor

and the air cleaner assembly.

7. Reinstall the air cleaner assembly using a new

gasket.

8. Use reverse procedure for reassembly. When

installing the polyurethane pre-cleaner, make

sure the seam is installed to the outside to

prevent gaps between the paper element and

the pre-cleaner.

TROUBLESHOOTING OR TESTING

If the engine's performance is unsatisfactory (needs excessive carburetor adjustments, starts smoking

abnormally, loses power), the first engine component to be checked is the air filter. A dirt restricted or an oil

soaked filter will cause noticeable performance problems. A polyurethane filter may be cleaned following the

service procedure listed under "Service" in this chapter. A paper-type air filter should only be replaced. A

paper-type filter cannot have an oil film present on the paper. Follow the procedure listed in the "Service"

section of this chapter for filter replacement or cleaning.

SERVICE

Service on the polyurethane filter element (cleaning and oiling) is recommended every three (3) months or

every twenty five (25) operating hours, whichever comes first. Extremely dirty or dusty conditions may require

daily cleanings.

The paper filter element should be replaced once a year or every 100 operating hours, more often if used in

extremely dusty conditions.

NOTE: NEVER RUN THE ENGINE WITHOUT THE COMPLETE AIR CLEANER ASSEMBLY INSTALLED ON

THE ENGINE. ALWAYS REPLACE THE FILTER ELEMENT WITH THE PROPER TECUMSEH ORIGINAL

REPLACEMENT PART.

WING NUTS

COVER

FILTER A

(FOAM)

FILTER B

COVER

FOAM

FILTER

FLOCKED SCREEN

GASKET

KLEEN-AIRE

ENTRANCE

GASKET

NUTS

BODY

GASKET

KLEEN-AIRE

ENTRANCE

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Craftsman 143.991200 Specifications Page 9

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