SATA AE5302 Manual Del Uso página 62

Fault symptom
separated from the safety gear.
② The safety jaw is not uplifted.
The lift does not
descend when the
Down button is
pressed.
① The hydraulic oil is too viscous
or frozen and deteriorated （in
The lift descends
slowly with normal
load.
The left and right
platforms are out of
sync and not at the
same height.
There is noise during
lifting and lowering.
The platform always
rises when the Down
button is pressed.
Main lift and sub lift
rise synchronously:
62
AE5302/AE5302-3
Cause
① The safety jaw is not
③ The solenoid air valve does
not work.
④ The lowering solenoid valve
does not work.
⑤ The explosion-proof valve is
blocked.
winter）.
② The "explosion-proof valve"
preventing the burst of the oil
pipe is blocked.
① The air in the hydraulic
cylinder is not bled completely.
② Oil pipes or connectors leak
oil.
③ The oil filling shutoff valve
cannot be closed tightly,
therefore oil filling is required
almost every day.
① Insufficient lubrication.
② The foundation or the
machine is distorted.
① The time relay is loose or
damaged.
① The solenoid valves of the
main lift and sub lift cannot
return because there is foreign
matter in the valve core.
中文
Troubleshooting method
Adjust the time delay to a slightly longer delay time.
The air pressure is insufficient, the safety jaw gets stuck or the air
pipe is broken. Adjust the pressure of the air compressor, inspect the
air pipe and eliminate the fault.
If the air circuit is blocked or the energized solenoid air valve does not
work, inspect or replace the solenoid air valve.
Inspect the connector and coil of the lowering solenoid valve
and inspect whether the copper nut at the end of the solenoid is
rightwardly tightened.
Remove the "explosion-proof valve" from the oil inlet port at the
bottom of main lift or sub lift hydraulic cylinders and clean the holes.
Change the hydraulic oil or increase the room temperature according
to the instructions.
Remove or close the intake pipe to lock the safety jaw without lifting,
remove the "explosion-proof valve" from the oil inlet port at the
bottom of the hydraulic cylinder and clean it.
Refer to the procedures for oil filling and leveling.
Tighten the connectors or replace the oil seals, then add oil and
perform leveling.
Replace the oil filling shutoff valve, then add the oil and perform
Apply oil at all hinges and moving parts （including piston rods） to
lubricate them.
Readjust the machine to make it level and fill （pad） the foundation.
Reinsert or replace the time relay.
Relocate the left and right valve cores, or disassemble the valve cores
and wash them with diesel and an air gun.
EN DE RU KO PT
leveling.
JA ES