16
GB) TOP PLATE ANGLE
GR)
GB)
File holders are marked with guide marks to align file properly to
produce correct TOP PLATE ANGLE.
A
) CORRECT- 30
o
B
) TOO BLUNT- For Cross Cutting.
C
) TOO ACUTE- Feathered Edge Dulls Quickly.
GR) &+$&* 6*3! %* 3231& 3% 0&+$# 23#+
$ %-0-$33*@%% 6*3 2<2#, $ "%-7*%%
2<2 4 .
A) - 30°
B) X - &33#23.
C) - 5D X6#% $&.
B
C
A
GB) SIDE PLATE ANGLE
GR)
GB) A
) CORRECT- 85
o -
90
o
Produced automatically if correct diameter file is used in file holder.
B
) “HOOK”- “Grabs” and dulls quickly. Increases potential of
KICK-
BACK
.
Results from using a file with diameter too small, or file held too low.
C
) BACKWARD SLOPE- Needs too much feed pressure, causes
excessive wear to bar and chain.
Results from using a file with diameter too large, or file held too high.
GR) A) - 85°-90°
*% -53 723&"&%*% 6*3 3% 2<2
+#3%&.
B) “” - “68%” 76#% $$&. -'#%
"05 &- .
-5 %* & "&16%23 5 723&"&%*% 6*3 3% "&6>
3 +#3%&, 6*3 1 "&6> 736#
C) - X%#@% "&6> "*%2, "&'%%*
-"%=&6 40&# 2 3"# 2 6-2*+.
-5 %* & "&16%23 723&"&2%! 6*3 3% "&6>
3%$#6 +#3%& #! 6*3 "&6> D6#.
B
C
A
