Checking Unit Condition; Shoulder Strap; Cutting Grass With A; Trimmer Head - Shindaiwa 81643 Owner's/Operator's Manual

Checking Unit Condition

NEVER operate the unit with the cutting
attachment shield or other protective
devices removed!
WARNING!
A cutting attachment shield or
other protective device is no guarantee
of protection against ricochet. YOU
MUST ALWAYS GUARD AGAINST
FLYING DEBRIS!
Use only authorized Shindaiwa parts
and accessories with your Shindaiwa
trimmer. Do not make modifications to
this unit without written approval from
Shindaiwa, Inc.
Shoulder Strap T242X
Adjust the shoulder strap so the shoulder pad
rests comfortably on the off-side shoulder
and the cutting path of the cutting
attachment is parallel to the ground. Make
sure all hooks and adjustment devices are
secure.
NOTE:
Although a shoulder strap accessory is
not required for use with a grass trimmer,
a shoulder strap can increase operator
comfort during extended periods of
operation. See Figure 21.
Cutting Grass—Units equipped with a trimmer head
Your Shindaiwa unit may be equipped
with one of several Shindaiwa trimmer
head models, each with features for
specific applications and/or operational
requirements.
NOTE:
For proper operation, always refer to the
instructions accompanying the trimmer
head being used. Available trimmer head
styles include:
n Semi-automatic. Trimmer line is
indexed when the operator taps the
trimmer head on the ground during
operation.
n Manual. The operator indexes line
manually with the grass trimmer
stopped.
n Fixed. The operator must stop the unit
and add new lengths of trimmer line
manually.
n Flail. This device, designed for clearing
weeds and light brush, features three
nylon blades attached to the head by
pivots.
NOTE:
Additional hardware may be required to
mount the Fixed Line or the Flail type
trimmer heads.
ALWAYS make sure the cutting
attachment is properly installed and firmly
tightened before operation.
NEVER use a cracked or warped cutting
attachment: replace it with a serviceable
one.
ALWAYS make sure the cutting
attachment fits properly into the
appropriate attachment holder. If a properly
installed attachment vibrates, replace the
attachment with new one and re-check.
Figure 21
CAUTION!
Do not push the rotating line into trees,
wire fences or any material that could
tangle or break line ends.
Engine Operating Speeds
Operate the unit at full throttle while
cutting grass.
CAUTION!
Operation of trimmer without a
cutting attachment shield and using
excessive line length can lead to
premature clutch failure.
CAUTION!
Operation at low RPM can lead to
premature clutch failure.
ALWAYS stop the engine immediately and
check for damage if you strike a foreign
object or if the unit becomes tangled.
Do not operate with broken or damaged
equipment.
NEVER allow the engine to run at high
RPM without a load. Doing so could
damage the engine.
NEVER operate a unit with worn or
damaged fasteners or attachment holders.
T242X
Operating With A Blade
WARNING!
Always wear a shoulder strap
when operating this unit with a blade.
NOTE:
Using a shoulder strap when operating this
unit with a blade allows you to maintain
proper control of the unit and reduces
fatigue during extended operation.
Hold the trimmer so the trimmer head is
angled slightly into the area to be cut. To
ensure maximum trimmer-line service
life, cut only with the tip of the trimmer
line. Cut grass by swinging the trimmer
from left to right. Keep the trimmer head
horizontal. See Figure .
Trimming and
Mowing Grass
Figure 22
Edging
Tilt the handle about
100° to the left (from
horizontal) and move
forward, holding the
trimmer vertically as
shown in Figure 3.
Figure 23
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