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Maintenance
IMPORTANT!
MAINTENANCE, REPLACEMENT
OR REPAIR OF EMISSION CONTROL
DEVICES AND SYSTEMS MAY BE PER-
FORMED BY ANY REPAIR ESTABLISH-
MENT OR INDIVIDUAL; HOWEVER, WAR-
RANTY 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 DURA-
BILITY 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!
Non-standard accessories,
cutting attachment, or replacement
parts may not operate properly with
your unit and may cause damage and
lead to personal injury.
daily Maintenance
Prior to each work day, perform the
following:
■
Remove all dirt and debris from the
engine, check the cooling fins and
air cleaner for clogging, and clean as
necessary.
■
Check the entire unit for leaking fuel
or grease.
10-hour Maintenance
(more frequently in dusty conditions)
1.
Remove the air cleaner cover by loos-
ening the thumbscrews and lifting.
2.
Remove and inspect the pre-filter.
If the pre-filter is torn or otherwise
damaged, replace it with a new one.
3.
Clean the pre-filter with soap and
water. Let dry before reinstalling.
4.
Inspect the air filter element. If the
element is damaged or distorted,
replace it with a new one.
5.
Tap filter gently on a hard surface to
dislodge debris from element or use
compressed air from the inside to
blow debris out and away from the air
filter element.
IMPORTANT!
Direct the air stream at the inside face of
the filter only!
12
WARNING!
Before performing any main-
tenance, repair, or cleaning work on the
unit, make sure the engine and cutting
attachment are completely stopped. Dis-
connect the spark plug wire before per-
forming service or maintenance.
Muffler
This unit must never be operated with a
faulty or missing spark arrester or muf-
fler. Make sure the muffler is well secured
and in good condition. A worn or damaged
muffler is a fire hazard and may also cause
hearing loss.
Spark Plug
Keep the spark plug and wire connections
tight and clean.
Fasteners
Make sure nuts, bolts, and screws (except
carburetor adjusting screws) are tight.
■
Carefully remove any accumulations
of dirt or debris from the muffler and
fuel tank. Check cooling air intake
area at base of crankcase. Remove all
debris. Dirt build-up in these areas can
lead to engine overheating, fire, or pre-
mature wear.
■
Clean any debris or dirt from the
sweeper attachment.
Unscrew
fasteners
6.
Install the air filter element, pre-filter
and cover in the reverse order of
removal.
Air Filter
The C4 engine that powers your Shindaiwa
model is a hybrid 4-stroke engine. As a
hybrid, the engine is lubricated by oil
mixed with the gasoline and air from the
carburetor that moves through and around
the internal parts of the engine in a simi-
lar way that a 2-stroke engine is lubri-
cated. Without the heavy duty 2-stage air
filter equipped on all C4 engines, dust and
dirt could also move through the engine,
decreasing engine life, increasing valve
wear and the need for more frequent valve
adjustments. To keep your C4 engine
strong and reliable, Shindaiwa recom-
mends that you check and service the air
filter as instructed in the 10-Hour Mainte-
nance section that follows
■
Check for loose or missing screws or
components. Make sure the cutter
attachment is securely fastened.
■
Make sure nuts, bolts, and screws
(except carburetor idle speed adjusting
screws) are tight.
Air filter
element
CAUTION!
Never operate the unit if the air
cleaner assembly is damaged or
missing!
Pre-filter
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