EAE EE-612FE, Инструкция по установке, эксплуатации и ремонту

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Installation, Operation and Parts Manual
EE-612FE
23
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. By the way, your troubles will be judged and solved much faster if you could provide us more details or pictures
of the trouble.
TROUBLES 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.
Solenoid valve fails to work well. Clean or replace it.
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.
Dirty hydraulic oil Change the oil.
Jammed. anti-surge valve Clean it.
Jammed oil hose Replace it.