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7
7.2 PROBLEMS KP1394P-KP1394TP
Turn the main switch to "0" and lock in case of emergency and/or maintenance to the lift
PROBLEMS
The pump does not start or stops during the operation
(before reaching the maximum pressure).
The pump works but does not send oil
Low capacity
The pump does not reach the maximum pressure.
The pump reaches the maximum pressure but does
remain under pressure.
Excessive oil leaks from the air drainage.
Oil tank gets up to pressure with air and oil leaks from
the valve.
Pump continues to pump even after the pedal has
been released.
After a period of disuse, the pump does not start.
36
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.
CAUSES
Return spring broken
a)
b)
Air loss, check the piston seal
a)
Oil level low
b)
Pump does not prime
Tank not ventilated
a)
b)
Insufficient air capacity
Hydraulic causes:
c)
- Check that the oil filter is not
blocked
- Air in the hydraulic circuit
- Check that the ball of the
suction valve works properly
a)
Check the air pressure
Valve or gaskets faulty or dirty
b)
Check hydraulic connections
a)
Dirt under the pedal
b)
c)
The ball of the delivery valve
d)
Leakage on the apparatus
connected
a)
Gaskets faulty
a)
Air leakage from the gaskets
b)
Tank too full of oil
Gaskets faulty
a)
b)
Air valve spring broken or too
weak
Gaskets faulty
a)
0509-M001-1
REMEDIES
Replace
a)
b)
Replace if faulty
a)
Top up oil
b)
Operate the pedal in the
"RELEASE area at the same
time as the air valve to start the
motor.
- Bleed the air out
- Pressurize the tank
CAUTION
Max. pressure 0.5 Bar (7 P.S.I.)
- Remove and clean
Ventilate tank through the screw
a)
on the plug
b)
Capacity should be 250
Lt/minute
c)
- Clean or replace
- Bleed air from the circuit
- If necessary add a copper
washer (14) or replace coupling
if the housing is worn.
a)
8 bar (100 P.S.I.) is required
Clean or replace
b)
Tighten if necessary
a)
Clean
b)
c)
Replace gaskets
d)
Repair and check seal
a)
Replace
a)
Replace gaskets
b)
Check the level
Replace
a)
b)
Replace
Replace
a)
KP1394
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