Cutting With Blades; Using Weed Blades; Using A Brush Blade - McCulloch MT3075 User Manual

TRIMMING AROUND TREES
Trim around tree trunks with a slow approach so string
does not contact bark. Walk around the tree trimming from
left to right. Approach grass or weeds with the tip of the
string and tilt stringhead slightly forward.
WARNING
Use extreme caution when SCALPING. Keep a distance of
100 feet (30 meters) between operator, other people and
animals during these operations.
SCALPING
Scalping refers to removal of all vegetation down to the
ground. To do this, tilt the stringhead to about a 30 degree
angle to the left. By adjusting the handle you will have bet-
ter control during this operation. Do not attempt this proce-
dure if there is any chance flying debris could injure opera-
tor, other people or cause damage to property (Figure 7-
3B).
WARNING
DO NOT SWEEP WITH TRIMMER
Sweeping refers to tilting stringhead to sweep away debris
from walkways, etc. Your trimmer is a powerful tool and
small stones or other such debris may be hurled 50 feet (15
meters) or more, causing injury or damage to nearby prop-
erty such as automobiles, homes and windows.

7-4. CUTTING WITH BLADES

WARNING
Before operating this machine with a blade check to ensure
it is properly installed. Follow all warnings listed in the blade
safety precautions section in this manual.
Always wear eye protection and protective clothing when
cutting with a blade.
Always use the harness for blade operations.

7-5. USING WEED BLADES

SCYTHING WEEDS
Scything refers to cutting by moving the blade from side to
side in a level arc. It is most effective with grassy weeds
7 - TRIMMING INSTRUCTIONS
7-3B
and light undergrowth. It should not be used to cut large,
tough weeds or woody growth (Figure 7-5A).
CAUTION
Do not use weed blades to cut brush or tree saplings.

7-6. USING A BRUSH BLADE

SCYTHING
Scything may be used with a brush blade for light brush
and undergrowth. It is not recommended for tough growth.
SAWING
Larger brush and saplings should be sawed. Do not
attempt to saw growths larger than 3 inches (7.5 cm) in
diameter.
Sawing is using the brush blade much like a circular saw.
Make gradual cuts backing out every 1/2 inch (1.3 cm) or
so to prevent binding.
BINDING
Top heavy growth such as saplings and heavy brush can
bind and stop the blade. Avoid binding by anticipating which
way the growth will lean, and cut from the opposite side.
If the blade binds in a cut stop the engine immediately. Hold
the unit up to prevent the blade from cracking or breaking
while pushing the sapling away from the cut to free the
blade.
A
B
7-5A
7-6A
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