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9
9.2 PROBLEMS SB 1396 P - SB 1396 TP
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.
The pawl release lever
does not disengage.
44
CAUSES
Return spring broken (25)
a)
b)
Air loss, check the piston seal (80)
a)
Oil level low
Pump does not prime
b)
a)
Tank not ventilated
Insufficient air capacity
b)
c)
Hydraulic causes:
- Check that the oil filter is not blocked
- Air in the hydraulic circuit
- Check that the ball (92) of the suction
valve works properly
a)
Check the air pressure
b)
Valve or gaskets faulty or dirty
a)
Check hydraulic connections
Dirt under the pedal
b)
c)
The ball of the delivery valve
d)
Leakage on the apparatus connected
a) Gaskets faulty
Air leakage from the gaskets
a)
Tank too full of oil
b
a)
Gaskets faulty
Air valve spring broken or too weak
b)
a) Gaskets faulty
a) Slackened connecting wire
0508-M001-2-P1
REMEDIES
Replace
a)
b)
Replace if faulty
a)
Top up oil
Operate the pedal in the "RELEASE
b)
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
a)
Ventilate tank through the screw on the
plug (48)
Capacity should be 250 Lt/minute
b)
c)
- Clean or replace
- Bleed air from the circuit
- If necessary add a copper washer
(14) or replace coupling (15) if the
housing is worn.
a)
7 bar (100 P.S.I.) is required
b)
Clean or replace
a)
Tighten if necessary
Clean
b)
c)
Replace gaskets
d)
Repair and check seal
a) Replace
Replace gaskets
a)
Check the level
b)
a)
Replace
Replace
b)
a) Replace
a)
Adjust
SB 1396 TE - SB 1396 TP
SB 1396 E - SB 1396 P
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