beautypg.com

Hour maintenance – Shindaiwa 81643 User Manual

Page 15

background image

15

135-hour Maintenance

Every 135 hours of operation,

remove and clean the muffler.

WARNING!
Never operate this trimmer

with a damaged or missing muffler or

spark arrester! Operating with missing

or damaged exhaust components is

a fire hazard, and can also damage

your hearing!

1. Remove the spark plug boot.
. With a 3 mm hex wrench remove the 1

muffler cover and 3 engine cover screws

and the engine cover. See Figure 30.

3. With a Phillips type screwdriver remove

the 5 screws holding the spark arrester

screen and cover to the muffler. See

Figure 30.

4. Remove the screen and clean it with a

stiff bristle brush.

5. With a 4 mm hex wrench remove the 3

muffler bolts and the muffler.

See Figure 30.

6. Inspect the cylinder exhaust port for any

carbon buildup.

7. Gently tap the muffler on a wood surface

to dislodge any loose carbon.

Engine Cover

Screws

IMPORTANT!

If you note excessive carbon buildup, consult

with an authorized Shindaiwa servicing dealer.

8. Reassemble the spark arrester, muffler

and engine cover in the reverse order of

disassembly.

Figure 30

Muffler

Cover

Engine

Cover

Muffler

Cover Screw

Spark Arrester

Screen

Muffler

Gasket

Muffler

Spark Arrester

Cover

Gasket

Screws

Muffler

Screws

Outlet