Shindaiwa H4 TRIMMER T344 - Manual (Page 14)

14
Maintenance
WARNING!
Before performing any main-
tenance, 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.
WARNING!
Non-standard accessories, cut-
ting attachment, or replacement parts
may not operate properly with your unit
and may cause damage and lead to
personal injury.
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 ECHO,INC. THE USE OF PARTS THAT ARE NOT EQUIVALENT IN PER-
FORMANCE AND DURABILITY TO AUTHORIZED PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CON-
TROL SYSTEM AND MAY HAVE A BEARING ON THE OUTCOME OF A WARRANTY CLAIM.
General maintenance
NOTE:
Using non-standard replacement parts could invalidate your Shindaiwa warranty.
Muffler
This unit must never be operated with a faulty or miss-
ing 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, increas-
ing valve wear and the need for more frequent valve adjust-
ments. 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.
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 accumula-
tions of dirt or debris from the muf-
fler 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.
Daily maintenance
Remove all dirt and debris from the engine and check the cooling fins
Cooling
fins
Air
intake
Cooling
fins
WARNING!
Always wear gloves when
working around the cutter assembly.
■
Clean any debris or dirt from the cut-
ting attachment.
■
Check for loose or missing screws
or components. Make sure the cutter
attachment is securely fastened.
■
Check the entire unit for leaking
fuel or grease.
■
Make sure nuts, bolts, and screws
(except carburetor idle speed
adjusting screws) are tight.