Beisler 739-23-1 Service Manual - Manual (Page 16)

Dismantling of blades
–
Remove screws 7 and 10, remove covering plate 9 and
blade-guiding plate 8.
– Pull movable blade 6 downwards and remove it from the
blade-guiding plate 8.
This is necessary to ensure that the blade is no damaged.
– Loosen screws 14 and remove the fixed blade 11.
Installation of blades
–
Unscrew fixed blade 11 and pressure plate 12.
The distance between the edge of the blade and the edge of the
guide plate is 3 mm.
– Remove pressure screw 13.
– Insert movable blade 6 into blade-guiding plate 8 from below.
Test smooth running of blade.
– Tighten pressure screw 13 and adjust to suitable cutting pressure.
The sewing threads are to be cut off with minimum pressure.
Complete test cut (see also chapter operational test).
The screw is slotted at the end and can be slightly widened for
proper fit.
– Replace covering plate 9.
– Tighten screws 7 and 10.
3-16
14 10 9 8 7
6
11
6
11
12
13
6
15
12