60
60
0579-M080-1
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TECHNICAL SERVICE STAFF REQUIRED
Intervention by others prohibited
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0
0
0
Mains switch in “0” position
Transformer fuse or general protective
fuses broken.
Fault in electrical system
0
0
0
Turn to position “I”.
Replace used fuses. If a fuse goes again,
find the cause of the problem.
Check efficiency, components and
connections (push buttons, solenoid
starter, heat detector, transformer).
0
0
0
0
Safety pressure switch activated due to
obstruction beneath footboard.
Safety pressure switch damaged or
command system working badly.
Descent solenoid valve faulty.
Obstruction beneath footboard P1.
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0
0
0
Press rise button until the footboards go
into mechanical stop. Remove
obstruction.
To complete descent, press descent
button and fit pin A inside the control
unit.
To lower the footboards, see section 6.1.
Press the rise button until the footboards
go into mechanical stop. Remove
obstruction.
1'
0
The capacity regulating valve is not
working properly.
0
See “Maintenance” section.
(
0
0
The solenoid descent valve is blocked in
the open position.
Suction pump filter blocked.
0
0
See “Maintenance” section.
Clean filter.
(
'
0
0
0
0
The solenoid descent valve is partially
open.
Suction pump filter partially blocked.
Worn or damaged pump.
Manual descent valve partially open.
0
0
0
0
See section on “Maintenance”.
Clean filter.
Replace pump.
Restore valve seal.
,
0
0
Calibrating valve faulty.
Worn or damaged pump.
0
0
Request dealer assistance.
Check pump efficiency and replace if
necessary.
0
0
Faulty alignment valve.
Worn gaskets in hydraulic cylinders.
0
0
Check that tap R (fig.15) is closed. Clean
valve if necessary and proceed as
described in section 4.12.
Replace.
%
0
0
Faulty solenoid release valve.
Worn or damaged release cylinder
gasket.
0
0
Check that the solenoid valve reel is
working properly and clean the solenoid
valve.
Replace gasket.
% 0
Faulty release cylinder.
0
See above.