
Owner‘s Manual Crimping Machine CM 25-3.4
Rev.: 2020-06-24
18 / 20
General Information
Ferrules
4/8 Indent
13. Troubleshooting
Error
Possible Cause
Solution
Crimp process is not completed
Pressure in the pneumatic system is not
functioning
Pull out pressure regulator and adjust by
turning. Check pressure in the system (set-up
to be 6 bar).
Foreign object in the 4/8 indent crimping unit
Close shut-off valve, pull off air supply hose.
Press RESET; if necessary, remove 4/8
indent crimping unit and clean it and check
crimp parameters.
Use of the wrong contact, which is not appro-
ved to be crimped an 4/8 indent crimping
unit
Close shut-off valve, pull off air supply
hose. Press RESET, remove contact, select
approved contact, check crimp parameters.
Pull-out Force values according to DIN
are not achieved
Cable cross section and size of ferrule do not
match
Check cross section. Find the correct match-
up. Proceed to crimp again.
Ferrule and cable are not conforming to DIN
requirements.
Only crimp conform components.
Crimping profile is dirty or displaced.
A Ferrule was crimped without the cable
inserted, pieces of the crimped contact can be
found between the crimp indenters.
Remove debris of the contact from the unit with
an appropriate tool. Proceed to crimp again.
The crimp profile of the crimp jaws is
damaged. .
Send crimp unit to the manufacturer for repair.
Crimp parameter deviates from inspec-
tion with gauge
Wear of indenters, for example, wrong 4/8
indent crimping unit was used
Readjustment of the basic setting
Send 4/8 indent crimping unit to the manu-
facturer for inspection
Display shows „E1
When the battery was changed, the crimp
unit’s adjustment wheel was not set back to
the lowest reference value.
Review chapter „10.9 Calibration (CAL) of
crimping unit after battery exchange“
Wear-and-tear limit of the tool is reached
Contact manufacturer
Display shows „E2“
Calibration was performed at a higher value,
than the base value set at the manufacturer
at initial delivery
Repeat calibration with the appropriate
gauge.