24
Trouble shooting
Symptoms
CAUSE
REMEDY
Hydraulic
Cylinder
& system
Motor is noisy
. 1.
Rated capacity is exceeded.
2.
Limit pressure is low.
3.
Short of hydraulic oil.
1.
Operate within rated capacity.
2.
Set the limit pressure to 2.7 ton.
3.
Fill up the tank when lift is on
ground.
Hydraulic oil is
leaking
1.
Defect in hydraulic hoses.
2.
Leaking at connecting parts.
3.
Bad cylinder sealing.
1.
Replace the hydraulic hose.
2.
Tighten the connection.
3.
Request service.
Oil
is
contaminated.
Wa ter or other substance in
the
oil
.
C
hange hydraulic oil
(
32CST /12 L)
The lift does
not rise up.
Leakage or valve blocked in the
hydraulic pump.
Clean the valve or pump. If necessary,
change it.
The lift is
not
lowering
.
The
release
valve is blocked.
Clean the valve.
Rotating parts
are rusted.
Not properly lubricated.
Lubricate
.
Electric
devices
Motor is not
running or
abnormally
noisy
.
1.
The
motor
is
damaged.
2.
The fuse is
blown
.
3.
The push button is
damaged.
4.
The upper limit switch is
engaged
.
5.
Wiring or cable size is not
correct.
6.
Power supply is lower than
220V.
1.
Replace the motor.
2.
Replace the fuse.
3.
Replace the push button.
4.
Try again after lowering the lift.
5.
Rewire
or change the cable
with over 3.5mm
2
diameter.
6.
Increase the power supply.
Fuse is
blown
.
1.
The magnetic contactor is
broken.
2.
The capacity of fuse is
too
small.
3.
Wiring
is damaged.
1.
Replace with a new contactor.
2.
Replace with a new fuse.
3.
Replace after checking.
Motor is
running but lift
does not move
up.
1.
The motor rotates in the
wrong direction (3-phase
power supply).
2.
Hydraulic cylinder seal is
damaged.
1.
Re-operate after changing the
phase connection (three phase
motor).
2.
Check then change the cylinder
seals.
REV A-082913
Содержание HR6K-70
Страница 2: ...HR6K 70 6600 lb Capacity High Rise Scissor Lift Operation Manual REV A 082913 ...
Страница 3: ......
Страница 13: ...12 SIZE DATA Fig 1 REV A 082913 ...
Страница 30: ...29 PARTS DRAWING FRAME REV A 082913 ...
Страница 35: ...34 HYDRAULIC HOSE CONNECTING DIAGRAM REV A 082913 ...
Страница 36: ......