EB 8312-2 EN
23
Operation
6.2 Working in manual opera-
tion
Risk of handwheel damage due to the use of
unsuitable tools.
To turn the handwheel, do not use any addi-
tional tools, such as a lever or wrench.
With mounted pneumatic actuator
1. To change from automatic to manual op-
eration, unlock the handwheel by pulling
the locking bolt and turning it 90° (see
Fig. 7).
2. Turn the handwheel until the valve reach-
es its end position.
Risk of valve damage due to the use of ex-
cessive force.
Do not turn the handwheel any further by
exerting force after the valve has reached its
end position.
−
The valve travel can only be reached after
the neutral travel of the handwheel has
been overcome. You will notice at this point
that the force needed increases.
−
The turning direction depends on the
mounted valve (see Table 2).
3. To change from manual to automatic op-
eration, put the handwheel into the neu-
tral position (see section 6.1).
NOTICE
!
NOTICE
!
Note
Fig. 7:
Releasing the locking bolt
