Homelite UT10517/18 Operator's Manual page 27

TOP PLATE FILING ANGLE
See Figure .
 CORRECT 30° – file holders are marked with guide
marks to align file properly to produce correct top plate
angle.
 LESS THAN 30° – for cross cutting.
 MORE THAN 30° – feathered edge dulls quickly.
SIdE PLATE ANGLE
See Figure .
 CORRECT 80° – Produced automatically if you use the
correct diameter file in the file holder.
 HOOK – "Grabs" and dulls quickly; increases the
potential of KICKBACK. Results from using a file with
a diameter too small or a file held too low.
 BACKWARD SLOPE – Needs too much feed pressure;
causes excessive wear to the bar and chain. Results
from using a file with a diameter too large or file held
too high.
top plate Filing angle
leSS than 30°
inCorreCt
Side plate Filing angle
hook
inCorreCt
MAINTENANCE
30°
CorreCt
more than 30°
80°
CorreCt
BaCkward Slope
MAINTAINING dEPTH GAUGE CLEARANCE
See Figure  - .
 Maintain the depth gauge at a clearance of .025 in. Use
a depth gauge tool for checking the depth gauge clear-
ances.
 Every time the chain is filed, check the depth gauge
clearance.
 Use a flat file and a depth gauge jointer to lower all gauges
uniformly. Use a .025 in. depth gauge jointer. After lower-
ing each depth gauge, restore original shape by rounding
the front. Be careful not to damage adjoining drive links
with the edge of the file.
 Depth gauges must be adjusted with the flat file in the
same direction the adjoining cutter was filed with the
round file. Use care not to contact cutter face with flat
file when adjusting depth gauges.
depth gauge Jointer
Fig. 54
Fig. 55
Page 
raker
ClearanCe
0.025 in.
Fig. 56
Flat File
Fig. 57
reStore original
Shape By rounding
the Front
Fig. 58