Each time the head is bumped, about 1 inch (25.4 mm) of
trimming line releases. A blade in the cutting attachment shield
will cut the line to the proper length if any excess line is released.
For best results, tap the bump knob on bare ground or hard
soil. If you attempt a line release in tall 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.
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.
• Cut from left to right.
• 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. It is
normal for some line breakage to occur from regular use.
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. 11).
HOLDING THE TRIMMER
Before operating the unit, stand in the
operating position (Fig. 9). 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.
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. 10) 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.
Fig. 9
Fig. 11
WARNING:
Always wear eye, hearing, foot and
body protection to reduce the risk of injury when
operating this unit.
WARNING:
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.
Fig. 10
5
STOPPING INSTRUCTIONS
Note:
This unit has a Momentary Switch. The On/Off Contol
Switch will be in the On position at all times.
1.
Release your hand from the throttle control. Allow the
engine to cool down by idling.
2.
Press the On/Off Stop Control in the OFF (O) position and
hold until the unit completely stops running. (Fig. 8)
Start/On ( I )
Stop/Off (O)
Throttle
Control
Fig. 8
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
STARTING/STOPPING INSTRUCTIONS
