Trouble Shooting - Dreve Drufomat scan Instrucciones De Trabajo

Drufomat scan

16. Trouble shooting

Problem
Unit does not work
Main breaker on, elec-
tronic shows no function
Piston cannot move
downwards
Piston has moved
downwards, unit does
not take over
self-maintenance
Piston does not move
upwards, unit cannot
be opened
50
Cause
Power line is not correct
Main breaker is off
Miniature fuse is defect
Electronic is out of order
Two-hand control has
not been operated
Unit is not connected to
compressed air
Final switch is out of order
Magnet valve is out of
order
Push button is defect
Minimum pressure of
29 psi has not been
reached
Electronic is out of order
Wrong operation of
push button
Push button is defect
Two-hand control or
magnet valve are defect
Aid
Control power supply
Switch on main breaker
Check miniature
fuse and exchange it,
if necessary
Electronic has to be
exchanged by an expert
Operate two-hand
control correctly, see
working instructions
Control compressed air
connection – connect
to compressed air, if
necessary
Final switch has to be
exchanged by an expert
Magnet valve has to be
exchanged by an expert
Push button has to be
exchanged by an expert
Hold escapement for
longer, see working
instructions
Electronic has to be
checked by an expert
Hold push button for
aprox. 2 sec.
Push button has to be
exchanged by an expert
Unit has to be controlled
by an expert