Installation, Operation and Parts Manual
EE62C-35T-E / EE62C-42T-E
25
TROUBLE SHOOTING
ATTENTION: If the trouble could not be fixed by yourself, please do not hesitate to contact us for help.
We will offer our service at the earliest time we can.
Troubles could be judged and solved much faster when more details or pictures could be provided.
TROUBLES
POSSIBLE CAUSES
SOLUTIONS
Abnormal noise
Abrasion exists on insider surface of the posts.
Grease the inside of the post.
Trash in the post.
Clear the trash
Motor does not run and
will not rise
Loose wire connection
Check and make a good connection.
Blown motor.
Replace it.
Damaged limit switch or its wire connection is loose.
Adjust or replace the limit switch.
Motor runs but will not
raise
The motor run reversely.
Check the wire connection.
Overflow valve is not well screwed up or jammed.
Clean or make adjustment
Damaged gear pump.
Replace it.
Too low oil level.
Add oil.
The hose connection is loose.
Tighten it.
The cushion valve is not well screwed up or jammed.
Clean or make adjustment
Carriages go down slowly
after being raised
The oil hose leaks.
Check or replace it.
Untightened oil cylinder.
Replace the seal.
The single way valve leaks.
Clean or replace it.
Unloading valve fails to work well.
Clean or replace it.
Slack steel cable
Check and adjust the tightness.
Raising too slow
Jammed oil filter
Clean or replace it.
Too low oil level.
Add oil.
The overflow valve is not adjusted to the right position.
Make adjustment.
Too hot hydraulic oil ( above 45°
）
.
Change the oil.
Abraded. Seal of the cylinder
Replace the seal.
Inside surface of the posts is not well greased.
Add grease.
Lowering too slow
Jammed throttle valve
Clean or replace it.
Dirty hydraulic oil
Change the oil.
Jammed anti-surge valve
Clean it.
Jammed oil hose
Replace it.
The steel cable is abraded
No grease at installation or out of lifetime
Replace it.
