6.6 Replacing the knife
Required parts Order number
STB 71 / STB 73: Knife (1) (wear part) 1821.209.036
STB 75: Knife (1) (wear part) 1821.209.040
Cylinder screw Torx, M4 (3) 1821.027.063
Cylinder screw Torx, M4x12 (5) 1913.904.125
Flanged bushing (6) 1832.022.238
Dismantling
► Remove battery from tool.
► Remove four cylinder screws Torx (3), strap
guide rear (4) and side cover (2).
► Remove cylinder screw Torx (5) and knife (1)
with anged bushing (6). Replace knife.
Fitting
► Fitting is performed in reverse order.
► Before tting the knife (1), check whether the
pressure spring (7) above the knife is inserted.
► Secure cylinder screw (5) with Loctite 222.
6.7 Tool reset
Attention
The tool reset may only be performed if the rocker lever is blocked. Never attempt to lift
the rocker lever by force!
► Place the enclosed 3 mm hex. socket-head
key (1) through the bore hole in the base
plate directly onto the cylinder screw located
underneath (see arrow).
► Perform ten full rotations in the coun-
ter-clockwise direction. This requires a little
physical effort.
► Lift rocker lever (2).
– The welding mechanism should now pivot
upwards.
If the tool reset could not be carried out success-
fully, please contact the Service Centre!
!
1
2
STB 75
2
3
4
5
6
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