Spark Arrester Maintenance; Long Term Storage - Shindaiwa 446s Manual Del Propietario Y Usuario

40/50 Hour Maintenance
1. Spark plug: replace the spark plug
with an NGK BPMR7A (or equiva-
lent), gapped to 0.024" (0.6 mm).
2. Fuel filter: use a hooked wire to
extract the fuel filter from inside
the fuel tank, and then remove and
replace the filter element. Before
replacing the filter, inspect the condi-
tion of the fuel line. If damage or
deterioration are noted, the saw must
be removed from service until it can
be inspected by a Shindaiwa-trained
service technician.

Spark Arrester Maintenance

Direction
Arrows
Cover
Screws
Cover
Hard starting or a gradual loss of
performance can be caused by carbon
deposits lodged in the muffler's spark
arrester screen.

Long Term Storage

(over 30 days)
n Thoroughly clean the saw exterior.
Remove all chips and other debris
from the cylinder fins and cooling
passages.
n Drain the fuel tank, and then clear
the carburetor and lines by running
the saw until it stops from lack of
fuel.
n Drain any remaining bar oil from the
oil reservoir.
Fuel Line
Fuel
Filter
Arrester
Screen
To service or replace the spark arrester,
remove the two cover screws and cover,
then remove the screen. Clean the
screen with a small wire brush. Replace
if damaged. Reinstall the screen and
cover with the arrows directed to the
front of the muffler.
CAUTION!
Never store the saw with any fuel
remaining in the tank, fuel lines,
or carburetor! Your Shindaiwa
warranty does not include coverage
for damage caused by "stale" or
contaminated fuels!
n Remove the spark plug, and then
pour 1/4 ounces (5 ml) of 2-cycle
mixing oil into the cylinder through
the spark plug hole. Before
reinstalling the spark plug, slowly
Hooked
CAUTION!
Wire
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.
3. Oil filter: extract the oil filter from
inside the oil tank, and then wash the
filter element in an approved solvent.
If damage or deterioration are noted
on the oil suction line, the saw must
be removed from service until it can
be inspected by a Shindaiwa-trained
service technician.
CAUTION!
When installing the spark arrester
Front of
cover make sure the arrows are
Muffler
directed to the front of the muffler.
If the spark arrester cover is
installed incorrectly, the hot exhaust
gases will be directed into the chain
saw and may cause heat damage
to surrounding parts.
CAUTION!
Carbon deposits in the combustion
chamber or exhaust port cannot be
removed in the field. For decarbon-
ization, return the 446s to your
Shindaiwa dealer.
pull the recoil starter 2-3 times to
distribute the oil over the cylinder
walls.
n Remove, clean, and reinstall the air
filter element as described under
"Daily Maintenance."
n Repair or replace any damaged
components as required, and then
store the unit in a clean, dry, dust-
free area.
n Protect the chain by using a chain
cover.
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