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HOLDING THE TRIMMER
WARNING:
body protection to reduce the risk of injury
when operating this unit.
Before operating the unit, stand in the operating position
(Fig. 27). Check for the following:
• The operator is wearing eye protection and proper
clothing
• With a slightly-bent right arm, the operator's right hand
is holding the shaft grip
• The operator's left arm is straight, the left hand holding
the handle
• The unit is at waist level
• The cutting attachment is parallel to the ground and
easily contacts the grass without the need to bend over
After starting the unit and standing in the operating position,
hook the shoulder strap to the unit (CC4090 only).
ADJUSTING TRIMMING LINE LENGTH
The Bump Head™ cutting attachment allows you to
release trimming line without stopping the engine. To
release more line, lightly tap the cutting attachment on the
ground (Fig. 28) while operating the trimmer at high speed.
NOTE: Always keep the trimming line fully extended.
Line release becomes more difficult as the cutting
line becomes shorter.
Each time the head is bumped, about 1 inch (25.4 mm) of
trimming line is released. A blade in the cutting
attachment shield will cut the line to the proper length if
excess line is released.
For best results, tap the Bump Head™ on bare ground or
hard soil. If line release is attempted in tall grass, the
engine may stall. Always keep the trimming line fully
extended. Line release becomes more difficult as the
cutting line becomes shorter.
NOTE: Do not rest the Bump Head™ on the ground
while the unit is running.
OPERATING INSTRUCTIONS
Always wear eye,
hearing, foot and
Fig. 27
CAUTION:
assembly. Excessive line length will make the
clutch overheat. This may lead to serious
personal injury or damage to the unit.
Some line breakage will occur from:
• Entanglement with foreign matter
• Normal line fatigue
• Attempting to cut thick, stalky weeds
• Forcing the line into objects such as walls or fence posts
TIPS FOR BEST TRIMMING RESULTS
• For best trimming results, operate unit at full throttle.
• Keep the cutting attachment parallel to the ground.
• Do not force the cutting attachment. Allow the tip of
the line to do the cutting, especially along walls.
Cutting with more than the tip will reduce cutting
efficiency and may overload the engine.
• Cut grass over 8 inches (200 mm) by working from top
to bottom in small increments to avoid premature line
wear or engine drag.
• For the CC4090 brushcutter, cut from left to right
whenever possible. Cutting to the right improves the
unit's cutting efficiency. Clippings are thrown away from
the operator. For the other units, cut from right to left.
• Slowly move the trimmer into and out of the cutting
area at the desired height. Move either in a forward-
backward or side-to-side motion. Cutting shorter
lengths produces the best results.
• Trim only when grass and weeds are dry.
• The life of your cutting line is dependent upon:
• Proper adherence of explained trimming techniques
• What vegetation is cut
• Where vegetation is cut
For example, the line will wear faster when trimming against
a foundation wall as opposed to trimming around a tree.
Do not remove or alter
the line cutting blade
Fig. 28
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