Jema Autolifte – Denmark
- WE ARE HERE TO SURPRISE!
16
5.
Trouble Shooting
ATTENTION: If you could not do the trouble shooting by your own, please contact us for help. You are requested to send us the
serial No. with detailed description of faulty machine or parts. We keep the right to ask for photos and pictures for diagnostics
TROUBLE
CAUSE
SOLUTION
Abnormal noise
There is abrasion in the post
Grease the inside of the post
There is trash in the post
Clear away the trash
Motor does not run and
will not rise
The wire connection is loose
Check it and make a good connection.
The motor is blown
Replace it.
The limit switch is damaged or the
wire connection is loose
Make a good connection, adjust or replace
the limit switch.
Motor runs but will not
raise
The motor reverse
Check the wire connection.
A piece of trash is under overflow
valve or the overflow valve is loose
Clean or adjusts the it
The gear pump is damaged
Replace it
Oil level too low
Oil level should be more than 2/3 oil tank
volume.
The oil absorbing pipe is loose
Tighten it
A piece of trash is under cushion valve
or the cushion valve is loose
Clean or adjusts it
Carriages go down
slowly after raising
Raising too slow
The oil hose leaks
Check or replace it
The seal of the cylinder is abrasion
Replace the seal
The single valve leaks
Clean or replace it
The overflow valve leaks
Clean or replace it
Manual unloading valve or electrical
unloading valve leaks
Clean or replace it.
The oil filter is jammed
Clean or replace it.
Lowering too slow
Oil level too low.
Oil level should be more than 2/3 oil tank
volume.
The overflow valve is loose
Adjust it.
The hydraulic oil is too hot ( above
45°
)
Change the oil
The seal of the cylinder is abrasion
Replace the seal.
The post inside is rough
Grease the post inside
There is trash in the throttle valve
Clean or replace
The wire rope is abraded
The hydraulic oil is dirty
Change the oil
There is trash in the anti-surge valve
Replace it
There is trash in the oil hose
Replace it
Did not grease the wire rope with
grease in installation or the use time of
the wire rope is out of its service
lifetime
Replace it
Summary of Contents for JA3500T
Page 20: ...Jema Autolifte Denmark WE ARE HERE TO SURPRISE 20 ANNEX 2 Overall Diagram ...
Page 22: ...Jema Autolifte Denmark WE ARE HERE TO SURPRISE 22 Annex5 Wiring diagram Single phase ...
Page 31: ...Jema Autolifte Denmark WE ARE HERE TO SURPRISE 31 ...
Page 32: ...Jema Autolifte Denmark WE ARE HERE TO SURPRISE 32 ...