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For setting saw chains, round le (4 mm ø: 5/32”) and at le are used.
• To keep correct position and correct angle, use the le holder.
- Round le and at le are available from your Echo Dealer.
• File cutters as below.
Type : 91VG
HOLD FILE HOLDER
LEVEL
Depth
gauge
ONE FIFTH OF FILE DIAMETER
REMAINS ABOVE CUTTER EDGE
To sharpen other type chain, follow chain manufacturer’s instructions
30°
PUSH FILE AS SHOWN
Keep this angle
1/5
90°
settinG the saw Chain
30°
55°
0.64 mm (0.025 in.)
Parallel
• When setting of the chain is nished, soak it in oil and wash away lings completely before using.
• When chain has been led on the bar, supply sufcient oil to it, rotate the chain slowly to wash away the lings
before using again.
• If the chain saw is operated with lings clogged in the groove, the saw chain and the guide bar will be damaged
prematurely
• If the saw chain becomes soiled with resin, for instance, clean it with kerosene and soak it in oil.
Depth gauge
tool
Remove
until at
with tool
Round
off the
edge
• Place the depth gauge tool rmly on guide bar so that depth gauge protrudes. Then le top of depth gauge with at
le until at with top of the gauge tool.
- Be sure to round off the front edge of the depth gauge.
• Properly led cutters are shown below.
(Top plate angle) (Top plate cutting angle) (Depth gauge)
3/8A
(SPROCKET)
91
Number indi-
cates Chain
type
Sprocket
Pitch
(DRIVE LINK)
A
B
Chain tYpe anD spRoCKet pitCh
Saw chain should be used with corresponding pitched
sprocket. To identify chain type and pitch of sprocket,
check as follows.
• Chain type number (A) is stamped on drive link.
• Sprocket pitch (B) is stamped on clutch drum.