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General maintenance
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 ECHO, INC. THE USE OF PARTS THAT ARE NOT EQUIVALENT IN
PERFORMANCE AND DURABILITY 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, repair, or cleaning
work on the unit, make sure the
engine and cutting attachment are
completely stopped. Disconnect the
spark plug wire before performing
service or maintenance.
Muffler
This unit must never be operated with a faulty or missing spark arrester or muffler. 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.
Air Filter
The H4 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 similar way that
a 2-stroke engine is lubricated.
Without the heavy duty 2-stage air filter equipped on all H4 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 H4 engine strong
and reliable, Shindaiwa recommends that you check and service the air filter as instructed in the 10-Hour Maintenance section
that follows.
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.
■
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
premature wear.
IMPORTANT!
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.
Cooling
fins
Remove all dirt and debris from the engine and check the cooling fins
NOTE:
Using non-standard replacement
parts could invalidate your Shindaiwa
warranty.
Cooling
fins
Air
intake
17
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