Hi-Force JCS Series Manuel d'utilisation - Page 10
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Hi-Force JCS Jack's should be serviced and repaired only by authorised Hi-Force repair centres. The
following table gives possible causes and solutions for common problems.
Problem
1. Piston will not
advance, advances
part way or erratically.
2. Piston advances, but
will not hold.
3. Jack leaks oil.
4. Piston will not retract
or retracts slower than
normal.
Operating Instruction Manual:
9.0 Trouble Shooting
TROUBLESHOOTING GUIDE
Possible Cause
a. Release valve open.
b. Load is too heavy for jack.
c. Oil level is low.
d. Piston binding.
e. Jack seals leaking.
a. Load is too heavy for jack.
b. Piston seals leaking.
a. Worn or damaged seals.
b. Jack damaged internally.
c. Jack over-stroked.
a. Release valve is closed.
b. Oil reservoir over-filled.
c. Weak or damaged retraction spring.
d. Damaged or worn seals.
e. Jack damaged internally.
OM-JCS-01
Solution
Close release valve.
Use suitably rated jack.
Add oil to the reservoir. (See Section 5.2 )
Repair or replace jack.
Repair or replace jack.
Use suitably rated jack.
Repair or replace jack.
Repair or replace cylinder.
Repair or replace cylinder.
Stop operation and wipe away excess oil.
Open release valve. (See section 6.2)
Drain excess oil from reservoir.
Repair or replace jack.
Repair or replace jack.
Repair or replace jack.
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Serial Number:
ALL