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2.GUIDEBARMAINTENANCE
• Conditionswhichcan require guide bar
maintenance:
--saw cuts to one side
--saw has to be forced through acut
--inadequate supply of oil to bar and
chain.
•Check the condition o! the guide bar each
time the chain is sharpened. A worn guide
bar will damage the chain and make cut-
ting more difficult.
• Replace the guide bar when."
--the inside groove of the guide bar rails is
WORN.
-- the guide bar is bent or cracked.
• Use only the Reduced-Kickback Guide Bar
specified foryour sawin "Specifications" lot
replacemenL
a. Remove the guide bar to service.
b. Clean oil holes at leastonce for each five
hours of operation.
C. Remove sawdust from the guide bar
groove periodically with a putty knife or a
wire. Figure 36.
d. Remove burrs by filing the side edges of
theguide bar groovessquarewith a flat file.
Figure 37.
e. Restore square edges to an uneven rail
top by filing with a fiat file. Figure 37.
CUTTERS
"SAMELENGTH REMOVE DAMAGE
SIDE PLATE TOP PLATE
Figure32
Figure33
/
DEPTH GAUGE TOOL
_, GAUGE
Figure34
, , , ',,H ,;,;,;, ........... , , ,,,,,,,,,,,,,,,,,,,,,,,,
HOOK TOO MUCH SQUARED
•o.co..E.
RIGHT WAY WRONG WAY [
Figure35
REMOVE SAWDUST "' _L
FROM GU,DE BAR GROOVtE_s_F
V
............. ;=
IIIIIIII
Figure36
GROOVES FILE EDGES_'_
GROOVE SQUARE
Figure37
B. SPARK ARRESTOR
.e Carbon deposits build up on the spark ar-
restor, as thesawisusedand must beremovedto
_avoidcreatingafirehazardorcausing enginedam-
age.
e, Rep_.acethe sp_,rkat_,.,_-tm-,if breaks OCt-tiT.
•Keep the spark arrestor clean at all times.
Clean:
--as required
--at leastonceforeach 25-30 hours of operation
Itemsrequired: wire brush,3/8'_wrench
RgUre 38
1.Disconnect thesperk plugwire.
2. Remove the Muffler Cover.Figure38.
3.Remove the screen from the baffle.
4.Cleanthe screen with awire brush or replace if
5.breaks are found.
6.Reassemble parts.
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