DEPTH OF CUT
See Figure 15.
Depth of cut affects the rate of feed and the quality of a cut.
Using the proper depth of cut can lessen the possibility of
damage to the trimmer motor and bit.
A deeper cut requires a slower feed than a shallow one. Mak-
ing a cut that is too deep will slow the feed so that the bit is
scraping, rather than cutting, and is not recommended.
A too-deep cut can cause smaller bits to be broken off.
bits that are 1/16 in. in diameter are easily broken off when
subjected to too much side thrust. A larger bit is not as likely
to break, but attempting a cut that is too deep may result in
a rough cut, and may make it difficult to guide and control
the bit as desired.
It is necessary that you do not exceed 1/8 in. depth of cut
in a single pass, regardless of the bit size or the softness
or condition of the workpiece. This will result in a higher
quality cut.
To make deeper cuts, it is necessary to make as many suc-
cessive passes as required, lowering the bit 1/8 in for each
new pass. To save time, perform all the cutting necessary at
one depth setting, then lower the bit for the next pass. This will
assure uniform depth when the final pass is completed.
WARNING:
If the desired depth of cut is greater than can be safely
cut in one pass, make cuts in two or more passes. Do
not remove more than 1/8 in. in a single pass. Excessive
depth of cut can result in loss of control and the possibility
of serious personal injury.
OPERATION
2ND.
PASS
17
DEPTH
OF CUT
1ST. PASS
1ST.
PASS
2ND. PASS
WIDTH
OF CUT
Fig. 15