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Operation(continued)
Fig, 5-7
Each time the head is bumped, about 1 inch (25.4 mm) of
trimming line releases. A blade in the cutting attachment
shield wiii cut the line to the proper length if any excess
line is released.
For best resuIts, tap the bump knob on bare ground or
hard soil. If you attempt a tine release in tail grass, the
engine may stall. Always keep the trimming line fully
extended. Line release becomes more difficult when the
cutting line gets shorter.
NOTE: Do not rest the Bump Head on the ground
while the unit is running.
Holding the Trimmer
Always wear eye, hearing, foot and body
protection
to reduce the risk of injury when
operating
this unit.
Before operating the unit, stand in the operating position
(Fig. 5-7). Check for the following:
The operator is wearing eye protection and proper
clothing
With a slightly-bent
right arm, the operator's hand is
holding the shaft grip
The operator's Ieft arm is straight, the left hand
holding the D-handle
The unit is at waist level
The cutting attachment is paralIet to the ground and
easily contacts the grass without the need to bend over
Adjusting Trimming Line Length
lhe Bump Head cutting attachment allowsyou
to release
trimming line without stopping the engine, fo release
more iine, lightly tap the cutting attachment on the ground
(Fig. 5-8) while operating the trimmer at high speed.
NOTE:
Always keep the trimming line fully
extended.
Line release becomes more
difficult as cutting
line becomes shorter.
Do not remove or alter the line cutting blade
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 tine into objects such as wails or fence
posts
Tips for Best Trimming Results
Keep the cutting attachment
parallet to the ground.
Do not force the cutting attachment. Aliow the tip of
the line to do the cutting, especially along walls.
Cutting with more than the tip wili reduce cutting
efficiency and may overload the engine.
Cut grass over 8 inches (200 ram) by working from
top to bottom in small increments to avoid premature
line wear or engine drag.
Cut from right to left whenever possible. Cutting to
the left improves the unit's cutting efficiency.
Clippings are thrown away from the operator.
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 tine is dependent upon:
FoIIowing the trimming techniques
What vegetation is being cut
Where vegetation is cut
For example, the line wilI wear faster when trimming
against a foundation wall as opposed to trimming around
a tree.
Decorative Trimming
Decorative trimming is accomplished
by removing all
vegetation around trees, posts, fences and more.
Rotate the whole unit so that the cutting attachment
is at
a 30 ° angle to the ground (Fig. 5-9).
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