CLEANING
AND
MAINTENANCE
Continued
items Needed
to Sharpen
Chain
Prochase these items fl'om your local dealer, hard-
ware store, or chain saw supplies outlet.
• 5132"round file
• Depth gauge tool
• File guide
• Vise
• Medium sized flat file
Sharpening
Cutters
Use file guide for 30° filing.
1. Adjust chain for proper tension (see Saw Chain
TmzsionAdjustment).
2. Clamp guide bar in vise to hold saw steady.
Note: Do not clamp chain.
3. Press 5132" round file (attached to file guide)
into groove between top plate and depth gauge
on chain. File guide should rest on both top plate
and depth gauge (see Figure 20). Note: File at
midpoint of guide bar.
,_Filing
Direction
30 ° Guide Mark
File Guide
........ 5/32" Round File
Note: This illustration
shows file guide placement
and filing direction
for sharpening
cutters on left side of chain.
Figure 20 - File and File Guide Placement On
Chain
Depth Gauge (left
side of chain)
,
\
'\
Groove
'\ '\
\\\ _
'\\
Top Plate (left side.
of chain)
Depth Gauge (right
side of chain)
\
Groove
\
\
Top Plate (right side of
chain)
Right Side of Chain
Figure 21 - Chain Part Locations
4. Hold file guide level. Make sure 30° mark on
file guide is parallel to center of guide bar (see
Figure 20). This will insure that you file cutters
at 30 ° angle.
5. File from inside towards outside of cutter until
sharp. Only file in this one direction (see Figure
20). Note: Two or three strokes with file should
sharpen cutter.
6. Alter each cutter is sharpened, move chain for-
ward to sharpen next cutter. File all cutters on
one side of chain.
7. Move to other side of chain and repeat process.
Filing
Cutter
Depth
Gauges
The cutter depth gauge clearance is reduced as cutters
are sharpened. Alter every second or third sharpen-
ing, reset cutter depth gauges.
1. Place depth gauge tool (.025") firmly across top
of two cutters. Make sure depth gauge enters slot
in depth gauge tool (see Figure 22).
2. Use medium flat file. File depth gauge level with
depth gauge tool.
3. Remove depth gauge tool. With flat file, round
off l}ont corner of cutter depth gauge (see Figure
23).
Alter several hand filings, have authorized service
center or sharpening service machine sharpen chain.
This will insure even filing.
REPLACING
SAW CHAIN
Replace chain when cutters are too worn to shaq)en or
when chain breaks. Only use replacement chainnoted in
this manual. Always include new drive sprocket when
replacing chain. This will maintain proper driving of
chain. Note: For proper chain and drive sprocket,
see Rud_lc(.ment Pmls mM Accessories.
!
_ Flat D_P_e__File
Depth Gauge Tool
Figure 22 - Depth Gauge Tool On Chain
Front Corner \
L .025"
03 mm
Figure 23 - Round
Off Front Corner
Of Depth
Gauge
17