Hyd-Mech PH 211, Use And Maintenance Manual

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Use and maintenance manual PH211
Troubleshooting machine faults
PROBLEM PROBABLE CAUSE SOLUTION
The main switch does not work
'
Electrical supply
.
Check: phases, cables, plug,
socket
'
Minimum voltage relay
.
Check that it is correctly sup-
plied and not burnt out
The STAND BY LED does
not come on
'
LED burnt out
.
Replace
'
Electrical supply
.
Check: phases, cables, plug,
socket
'
Minimum voltage relay
.
Check that it is correctly sup-
plied and not burnt out
'
Transformer supply
.
Check transformer input fu-
ses 1 and 2.
Check transformer 24 V se-
condary output.
Check 24V output fuse.
Spindle motor will not turn
'
Electrical power supply
.
Check: the phases; the
cables; the plug; the socket.
Also check that the motor
connections are in place.
'
Motor contactor
.
Check input and output pha-
ses and check whether when
supplying A1 and A2 relay
the contactor closes.
'
Polarity change switch
.
Check input and output pha-
ses
'
Head control lever micros-
witch
.
Check that it is functioning; if
broken, replace
'
Blade tensioning
.
If the blade is not correctly
tensioned to 60 Bar, the
pressure contact does not
close and the machine is in
EMERGENCY state
'
Blade protection cover
.
Check that the closure is cor-
rect and the limit stop pres-
sed
'
Current drop
.
Check connections on the
handgrip switch, the blade
protection limiter and the
pressure gauge on the blade
tensioner group