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10.0 TROUBLE SHOOTING
TROUBLE
Pump motor turns but none of the
hydraulic movements works.
Pump motor does not turn but the
chuck motor operates normally.
The thermal switch that protects the
pump motor is very easily activat-
ed.
The circuit breaker is very easily ac-
tivated.
The transformer protection fuses
easily blow.
The chuck does not hold the wheel
firmly.
HOFMANN behält sich das Recht zu Änderungen ohne Vorankündigung vor _ HOFMANN reserves the right of modification without notice _ Document non contractuel
monty 4400
Betriebsanleitung Operator's Manual Notice d' utilisation
CAUSE
•
The automatic circuit breaker is
off.
•
A fuse of the low-voltage sec-
tion is blown.
•
Transformer is burnt out.
•
The thermal safety switch pro-
tecting
the
is/was activated.
•
The voltage of the electric line is
too low.
•
The machine is not stable on the
floor.
•
The electric cabinet is not firmly
attached.
•
The voltage of the electric line is
too low.
•
Short circuit in the electric cord
connecting the portable control
unit to the electric cabinet.
•
The teeth of the chuck jaws are
full of dirt or worn out.
•
The
protectors
wheels are damaged or worn
out.
•
The check valve or manifold of
the chuck cylinder leak oil..
Modéle : monty 4400_D _GB _F - Release B April. 09
•
Disconnect the machine from
electric supply. Open the elec-
tric cabinet and check the au-
tomatic circuit breaker and low
voltage fuses. Reset the circuit
breaker or replace the fuses as
needed.
•
THIS
PERFORMED ONLY BY QUALIFIED
PERSONNEL.
•
Call the authorized service cen-
ter for assistance.
•
Disconnect the machine from
hydraulic
motor
electric supply. Open the elec-
tric cabinet and reset the ther-
mal safety switch.
THIS
PERFORMED ONLY BY QUALIFIED
PERSONNEL.
•
Check voltage on electric sup-
ply.
THIS
PERFORMED ONLY BY QUALIFIED
PERSONNEL.
•
Check that the machine is se-
curely bolted to the floor.
•
Attach the electric cabinet firm-
ly.
•
Check voltage on electric sup-
ply.
THIS
PERFORMED ONLY BY QUALIFIED
PERSONNEL.
•
Call the authorized service cen-
ter for assistance.
•
Clean the teeth of the chuck
jaws with a wire brush.
•
for
light-alloy
Replace the protectors for alloy
wheels.
•
Call the authorized service cen-
ter for assistance..
REMEDY
OPERATION
CAN
OPERATION
CAN
OPERATION
CAN
OPERATION
CAN
50
BE
BE
BE
BE
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