11
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.
2. With a 3 mm hex wrench remove the 1
muffler cover and 3 engine cover screws
and the engine cover. See Figure 18.
3. With a Phillips type screwdriver remove
the 5 screws holding the spark arrester
screen and cover to the muffler. See
Figure 18.
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 18.
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 18
Muffler
Cover
Engine
Cover
Muffler
Cover Screw
Spark Arrester
Screen
Muffler
Gasket
Muffler
Spark Arrester
Cover
Gasket
Screws
Muffler
Screws
Outlet
50-hour Maintenance
Every 50 hours of operation
(more frequently in dusty or dirty conditions):
Remove and clean the cylinder cover and
clean grass and dirt from the cylinder fins.
Use a hooked wire to extract the fuel filter
from inside the fuel tank. See Figure 17.
Remove and replace the filter element.
Before reinstalling the filter, inspect the
condition of the fuel line. If damage or dete-
rioration are noted, the M242 Multipurpose
Tool Carrier should be removed from
service until it can be inspected by a
Shindaiwa-trained service technician.
Figure 17
CAUTION!
Make sure you do not pierce the fuel line
with the end of the hooked wire, the line
is delicate and can be damaged easily.
Filter Element
Hooked
Wire
Long Term Storage
Whenever the unit will not be used for 30
days or longer, use the following proce-
dures to prepare it for storage:
Clean external parts thoroughly and
apply a light coating of oil to all metal
surfaces.
Drain all the fuel from the fuel tank.
To remove the remaining fuel from the
fuel lines and carburetor and with the fuel
drained from the fuel tank:
1. Prime the primer bulb until no more fuel
is passing through.
2. Start and run the engine until it stops
running.
3. Repeat steps 1 and 2 until the engine will
no longer start.
IMPORTANT!
All stored fuels should be stabilized
with a fuel stabilizer such as STA-BIL™,
if oil with fuel stabilizer is not used.
CAUTION!
Gasoline stored in the carburetor for
extended periods can cause hard start-
ing and could also lead to increased
service and maintenance cost.
Remove the spark plug and pour about
1/4 ounce of 2-cycle mixing oil into the
cylinder through the spark plug hole.
Slowly pull the recoil starter 2 or 3 times
so oil will evenly coat the interior of the
engine. Reinstall the spark plug.
Before storing the unit, repair or replace
any worn or damaged parts.
Remove the air cleaner element from the
carburetor and clean it thoroughly with
soap and water. Let dry and reassemble
the element.
Store the unit in a clean, dust-free area.
