Chain Pitch; Chain Breaking - Stihl NG 7 Instruction Manual

Chain Pitch

The chain pitch (a) is marked on the
depth gauge end of each cutter.
Mark (a) Chain pitch
7 1/4" P
1 or 1/4 1/4"
6 or P, PM 3/8" P
2 or 325 .325"
3 or 3/8 3/8"
4 or 404 .404"
NG 7

Chain Breaking

Die Markings
a
Workholding recesses for STIHL saw
chains are machined into the die block
and marked as follows.
Chain pitch
1/4" P
1/4", 3/8" P
.325"
3/8"
.404"
Selecting Punch
Select the punch that matches the
N
chain pitch.
.404
3/8
.325
1/4+3/8P
1/4P
Marking
1/4P
1/4 + Picco,
1/4+3/8P
.325 R, .325
3/8 R, 3/8
.404 R, .404
Chain pitch Punch diameter
mm
1/4" P, 1/4" 1,2
.325" 2,2
3/8" P, 3/8" 2,2
.404" 2,2
3
2
1
Fit the selected punch (1) in the
N
chuck (2) and clamp it in position
with the setscrew (3).
Chain Breaking
WARNING
Improper repairs can result in damage to
the chain and increase the risk of injury.
To reduce the risk of injury from the
sharp cutters, wear protective gloves
when working with the saw chain.
English
inch
0,047
0.087
0.087
0.087
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