Shindaiwa PowerBroom PS344 - Manual (Page 13)

13
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 connec-
tions 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 gaso-
line and air from the carburetor that
moves through and around the inter-
nal parts of the engine in a similar way
that a 2-stroke engine is lubricated.
Without the heavy duty 2-stage air fil-
ter 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 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
Maintenance
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.
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.
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.
Daily Maintenance
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.
Clean any debris or dirt from the
■
sweeper attachment.
Check for loose or missing screws
■
or components. Make sure the
attachment is securely fastened.
Make sure nuts, bolts, and screws
■
(except carburetor idle speed
adjusting screws) are tight.
iMPORTanT!
MAINTENANCE, REPLACEMENT OR
REPAIR OF EMISSION CONTROL
DEVICES AND SYSTEMS MAY BE
PERFORMED BY ANY REPAIR ESTAB-
LISHMENT OR INDIVIDUAL; HOW-
EVER, 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
CONTROL SYSTEM AND MAY HAVE
A BEARING ON THE OUTCOME OF A
WARRANTY CLAIM.
10-Hour Maintenance
Unscrew
fasteners
(more frequently in dusty
conditions)
Remove the air cleaner cover by 1.
loosening the thumbscrews and
lifting.
Remove and inspect the pre-filter.
2.
If the pre-filter is torn or otherwise
damaged, replace it with a new one.
Clean the pre-filter with soap and
3.
water. Let dry before reinstalling.
Inspect the air filter element. If the
4.
element is damaged or distorted,
replace it with a new one.
Tap filter gently on a hard surface to
5.
dislodge debris from element or use
compressed air from the inside to
blow debris out and away from the
air filter element.
Install the air filter element, pre-filter 6.
and cover in the reverse order of
removal.
Air filter
element
Pre-filter
iMPORTanT!
Direct the air stream at the inside face
of the filter only!
CaUTiOn!
Never operate the unit if the air
cleaner assembly is damaged or
missing!