Troubleshooting - Danfoss ET4200 Operator's Manual

7

Troubleshooting

Error
Machine does not close/open
Machine forms unevenly/coni-
cally
Crimping dimension not achie-
ved
Cause
Main switch is OFF
Voltage incorrect
Power plug defective
Rotational direction of electric
motor incorrect
Phase applied to neutral
conductor
Insufficient amount of hydrau-
lic oil
Power unit defective
Operation buttons defective
Bearing plates worn
Base dies damaged
Crimping dies damaged
Crimping area not centred
Bearing plates worn
Oil pressure too low
Incorrect crimping dies used
Remedy
Switch on the main switch
Check voltage supply
Check power plug and replace
if necessary
Check rotation direction, cor-
rect electrical connection
Check power plug, correct
electrical connection
Refill oil
Check power unit
Check operation buttons and
replace, if required
Check bearing plates for wear
and replace if necessary
Check base dies for damage
and replace if necessary
Check crimping dies for da-
mage and replace if necessary
Preferably form the work piece
in the centre of the crimping
die length
Check bearing plates for wear
and replace if necessary
Check oil pressure at the MP
measuring point, pump or pipe
may be leaking or defective,
repair or replace
Check crimping die diameter
and crimping die section and
replace, if required (for crimp-
ing die section, please refer to
"Technical data" in Section 3)