Stihl NG 7 Instruction Manual page 15

Rivet Spinning
Do not change the chain link
N
assembly pattern.
Use only identical replacement
N
chain links.
2
1
Screw the thrust screw (1)
N
clockwise into the threaded
bushing (2) and fit the spinning
head (3) in the holder (4).
5
6
Fit the matching chain links on a
N
preset tie strap.
Place the chain over the two guide
N
pulleys (5) and engage the drive link
tangs in the grooves. The preset
head of the tie strap must face the
thrust screw.
Loosen the screws (6) and rotate
N
the eccentric guide pulleys.
NG 7
4
3
The rivets in the chain links must be
N
horizontal and in alignment with the
spinning head. The preset head of
the tie strap must locate in the
recessed end of the thrust screw.
Tighten down the screws.
N
1
5
Advance the thrust screw (1) until
N
the shank of the rivet butts against
6
the spinning head (3).
Apply a few drops of oil to the rivet
N
and the face of the spinning head.
Turn the thrust screw (1) clockwise
N
with one hand until moderate
pressure is applied to the rivet. Turn
the crank handle (7) steadily
clockwise with the other hand – the
spinning head forms the new rivet
head. Continue turning the thrust
screw to maintain a constant
pressure on the rivet.
Spin the rivet until the chain links
N
are firmly connected but still flexible.
The new chain link must be matched to
the size and shape of the other links:
N
N
3
7
Grind back the cutter and depth
gauge to the size of the master
cutter (the master cutter is the
shortest cutter in the chain, see
instruction manual of grinder).
File back the sliding faces to the
size and shape of the other links.
English
13