Maintenance; Daily Maintenance - Shindaiwa 446s Owner's/Operator's Manual

Maintenance

IMPORTANT!
MAINTENANCE, REPLACEMENT OR
REPAIR OF EMISSION CONTROL
DEVICES AND SYSTEMS MAY BE
PERFORMED BY ANY REPAIR
ESTABLISHMENT OR INDIVIDUAL;
HOWEVER, WARRANTY REPAIRS
MUST BE PERFORMED BY A DEALER
OR SERVICE CENTER AUTHORIZED
BY SHINDAIWA Inc. THE USE OF
PARTS THAT ARE NOT EQUIVA-
LENT IN PERFORMANCE AND DU-
RABILITY TO AUTHORIZED PARTS
MAY IMPAIR THE EFFECTIVENESS
OF THE EMISSION CONTROL SYSTEM
AND MAY HAVE A BEARING ON THE
OUTCOME OF A WARRANTY CLAIM.
WARNING!
Before performing any
maintenance on this saw,
stop the engine and disconnect
the spark plug wire!
10/15 Hour Maintenance
1. Remove and clean the spark plug.
Adjust the spark plug gap to 0.024"
(0.6 mm), and
reinstall.
Replace any
damaged or
visibly worn
plug with an
NGK BPMR7A
or equivalent
spark plug of
the same heat
range.
14

Daily Maintenance

1. Remove dirt and debris from the saw
exterior, cylinder fins, and cooling air
intake.
2. Inspect the saw for fuel and oil leaks.
Repair as necessary.
3. Service the air filter.
n Remove the air filter cover and then
remove the element. Use extreme
Cover
CAUTION!
Never allow chips or other debris
to enter the cylinder bore! Before
0.024"
removing the spark plug, thor-
(0.6 mm)
oughly clean the spark plug and
cylinder head area!
2. Remove the guide bar and chain.
Carefully inspect the drive sprocket
for wear or damage, and replace if
noted. Inspect the guide bar grooves
and tip for wear or damage, and
repair or replace components as
required.
care to prevent any debris from
entering the carburetor bore. Wash
all parts with soap and water, and
then gently wipe or blow dry before
reassembly.
n Remove the air filter cover and then
remove the element. Use extreme
care to prevent any debris from enter-
ing the carburetor bore. Wash all
parts with soap and water, and then
gently wipe or blow dry before reas-
sembly.
n Install the air filter element in the
saw.
4. Sharpen and adjust the saw chains as
required.
5. Clean the guide bar groove and oil
hole, and inspect the bar groove
and tip for damage or unusual wear.
Repair or replace worn or damaged
components as necessary.
F
ilter Element
6. Inspect the drive sprocket.
7. Inspect the entire saw for damaged,
Choke
loose or missing components or
fastenings. Repair as necessary.
The drive sprocket and saw chain
loop should always be replaced as a
set! For economy, rotate the same 2-3
chains daily. When these chains are
worn out, replace both the chains and
drive sprocket at the same time.
IMPORTANT!