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8)
Malfunctions and how to rectify them
No.
Malfunction
1
Drive unit cannot be fully
closed
2
The probe plate unit cannot
be locked in place
3
Clamping lever for probe
plate unit automatically re-
turns to home position
4
Drive unit does not open
fully or remain open
5
Drive unit does not close
easily or jams
6
Self-opening unit does not
open
7
Drive unit does not stay
closed
8
Drive unit cannot be
opened
©
INGUN: Subject to technical changes without notice. E&OE.
Possible cause
Probe plate unit is not
locked in place
Foreign object present in
working area
Eccentric rotation is
blocked by foreign object
Gas spring not suitable for
the weight of the pressure
frame unit (NDH), e.g., fol-
lowing customisation
Gas spring is worn out
Latches are not parallel
Latches are not parallel
Worn edge on the front
bearing block
Latches are not parallel
Worn edge on the rear
bearing block
Quarter-turn lock is defec-
tive
Corrective actions
Lock the probe plate unit in
place
Remove foreign body
Remove foreign body
Install suitable gas spring
(see technical manual for
details)
Replace gas spring
See chapter 8.1) Align par-
allelism of latches 49
See chapter 8.1) Align par-
allelism of latches 49
Replace bearing block
See chapter 8.1) Align par-
allelism of latches 49
See chapter 8.2) Install
new drive mechanism 50
Install a new quarter-turn
lock
48
