TECO 302 Serie Manual De Instrucciones página 133

The lift does not raise
The lifting capacity is not
sufficient
The lift does not lower when
the DOWN button is pressed
(without load)
t :
rouble
The lift does not lower when
the DOWN button is pressed
Platforms do not stop in
standing position
Operator's manual
Printed circuit board does
not operate properly
The motor direction of rota-
tion is not correct
The oil in the hydraulic unit
is not sufficient
The UP button is faulty
The maximum height limit
switch sensor is faulty
Lowering valve stays open
The suction pump filter is
dirty
The pump is faulty
Oil leakages in hydraulic
circuit
Exceeding oil into hydraulic
circuit
p
ossible Cause
The lowering solenoid valve
does not work properly
Locking solenoid valve is
jammed
The DOWN button is faulty Replace the DOWN button.
Printed circuit board does
not operate properly
The lowering and locking so-
lenoid valves stay opened
Leakage in at least two hy-
draulic pipelines
Two hydraulic cylinders at
least are faulty
Replace the printed circuit
board.
Interchange the two phases
on the main switch.
Add some hydraulic oil.
Check UP button and con-
nection for proper opera-
tion. Replace, if needed.
Check the max. height and
relevant connection for
proper operation. Replace,
if needed.
Check and clean if dirty.
Replace if faulty.
Check and clean if needed.
Check the pump and re-
place, if needed.
Check the circuit for any
leakage.
Push lowering button and
discharging button simul-
taneously.
: s
olution
Verify if it is powered and
check magneto for damage
(replace if disconnected or
blown).
Verify if it is powered and
check magneto for damage
(replace if disconnected or
blown).
Replace the printed circuit
board.
Verify that solenoid valve
sliders are not locked.
Check connections for prop-
er tightening and tubes for
damage (replace if dam-
aged).
Check and replace if nec-
essary.
:
UK
133