Ravaglioli RAV505 IF Manual page 53

8. PROBLEMS
Some possible problems which may arise while using the lift are listed below. Ravaglioli will not accept any responsibility for
damage to people, animals and objects caused by unauthorised staff using the equipment. In the event of faults, you are
advised to contact the technical service department in good time to receive advice about how to carry out work and/or
adjustments in maximum safety conditions, thus avoiding the risk of damage to people, animals and objects.
Turn the main switch to "0" and lock in case of emergency and/or maintenance to the lift
PROBLEMS
Lift does not work at all.
The rise movement
takes place but not the
descent movement
Descent is extremely
slow
The motor turns over
regularly but lifting does
not take place.
The motor turns over
regularly but the rise
speed is extremely slow.
The lift cannot lift the
nominal capacity
Non-syncronized
movement of the
footboards.
The release cylinders do
not work.
There are problems in
sliding between the
front ramp and
(RAV510).
RAV505 - RAV506 - RAV507
RAV508 - RAV509 - RAV510
CAUSES
Main switch in "0" position
a)
b) Transformer fuse or general protection
fuses interrupted (installed by the user).
Fault in the electric system.
c)
a) The safety pressure gauge is activated
because of presence of obstacle under
the footboard.
b) Safety pressure gauge damaged or
malfunction of the control system
c) Defect in the descent solenoid valve.
a) The capacity adjusting valve does not
work properly
a) Descent control valve blocked in opening
position.
b) Pump suction filter blocked
a) Descent solenoid valve partially open.
Pump suction filter partially blocked.
b)
Pump worn or damaged.
c)
d) Manual descent valve partially open.
Faulty alignment valve.
a)
b) Pump worn or damaged.
a) Faulty alignment valve.
b) Worn gaskets in hydraulic cylinders.
a) Release solenoid valve does not work
properly.
b) Release cylinder gasket worn or
damaged.
a) Footboard guides and ramp control lever
not greased.
Pressure gauge or adjustment screws
b)
not adjusted
Turn switch to position "I".
a)
b) Replace the interrupted fuses. If it breaks
again, identify the cause.
Check efficiency, connections and
c)
components (buttons, remote control,
heat detector, transformer).
a) Press the rise button until the footboards
go into mechanical stop. Remove the
obstacle.
b) To complete the descent press the
descent button insert the pin A inside the
control unit.
c) To lower the footboards, operate the
manual descent valve using the relative
spanner. For dismantling and
maintenance operations, see the section
"Maintenance".
a) See "Maintenance" section.
a) See "Maintenance" section.
b) Clean the filter
a) See "Maintenance" section.
Clean the filter.
b)
Replace the pump.
c)
d) Reseal the valve.
Request assistance from retailer's
a)
technical service.
b) Check that the pump is working properly
and replace if necessary.
a) Check that the tap R (Fig.10) is closed.
Clean the valve if necessary and
proceed as described in section 4.9.
b) Replace the gaskets.
a) Check that the spool of the solenoid
valve is working properly and clean the
solenoid valve.
b) Replace the gaskets
a) Clean or replace.
Adjust.
b)
0580-M020-0
TECHNICAL SERVICE REQUIRED
do not attempt to do the job yourself
RIMEDI
53