Shindaiwa AHS242 Owner's/Operator's Manual page 19

Maintenance (continued)
CAUTION!
Do not remove the D-shaped shim
washer from the gearcase clamp!
The shim washer prevents damage
from overtightening the tube clamp
bolt.
3. Slide the gearcase out of the tube.
Using a grease gun, pump lithium-
base grease (about 10 grams)
into the grease fitting (B) on the
gearcase until you see old grease
being purged from the gearcase.
Purged grease will be visible in the
outer tube cavity.
135 Hour Maintenance
Engine Cover
Screws
Muffler and spark arrester maintenance
If the engine becomes sluggish and
low on power, check and clean the
spark arrester screen.
WARNING!
Never operate the unit with
a damaged or missing muffler or
spark arrester! Operating with a
missing or damaged spark arrester
is a fire hazard and could also dam-
age your hearing.
Lubricate cutter assembly and gearcase
4. Clean up excess grease, then reassemble the
gearcase onto the outer tube. Make sure the index
bolt fits into the hole on the outer tube. Securely
tighten both bolts.
Engine Cover
Muffler
Cover
Screw
Muffler
gasket
1. Remove the spark plug boot.
2. Remove the engine cover and muf-
fler cover.
3. Remove the spark arrester screen
and cover.
4. Clean the screen with a stiff bristle
brush.
5. Remove the muffler.
B
Gearcase
grease fitting
Muffler Cover
Muffler
screws
Muffler
Gasket
Spark arrester
Spark arrester
screen
6. Inspect the cylinder exhaust port for
any carbon buildup.
7. Gently tap the muffler on a wood
surface to dislodge any loose car-
bon.
8. Reassemble the spark arrester, muf-
fler and engine cover in the reverse
order of disassembly.
Screws
Outlet
cover
19