7
Troubleshooting
Error
Cause
Remedy
Machine does not close/open
Main switch is OFF
Activate the main switch
Voltage incorrect
Check voltage supply
Power plug defective
Check power plug and replace
if necessary
Rotational direction of electric
motor incorrect
Check rotation direction, cor-
rect electrical connection
Insufficient amount of hydrau-
lic oil
Refill oil
Power unit defective
Check power unit
Operation buttons defective
Check operation buttons and
replace, if required
Machine forms unevenly/coni-
cally
Bearing plates worn
Check bearing plates for wear
and replace if necessary
Base dies damaged
Check base dies for damage
and replace if necessary
Crimping dies damaged
Check crimping dies for da-
mage and replace if necessary
Crimping area not centred
Preferably form the workpiece
in the centre of the crimping
die length.
Crimping dimension not achie-
ved
Bearing plates worn
Check bearing plates for wear
and replace if necessary
Oil pressure too low
Check oil pressure at the MP
measuring point, pump or pipe
may be leaking or defective,
repair or replace
Incorrect crimping dies used
Check crimping die diameter
and profile and exchange, if
required (see “Technical data”,
Section 3, for crimping die pro-
file)
Error messages displayed on the control panel are described in the
separate operating instructions of the control system.
Summary of Contents for ET5020
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Page 77: ...9 7 Hydraulic diagram...
Page 78: ...9 8 Electric diagram...
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