Car lift installation, operation and maintenance manual Type
：
4SF-4000B
18
Oil suction pipe loose and fall off
Tighten the suction pipe
Cushion valve is loose or blocked
Tighten or clean the cushion valve
Lift go down itself after
lifting up
Cylinder seal is bad
Replace seals
Check the oil hose for leaks
Change the oil hose
One way valve is not sealed properly
Decompose, clean, remove, or replace
Overflow valve is not good
Decompose, clean, remove, or replace
Manual unloading valve or electromagnetic unloading
valve
is not good
Decompose, clean, remove, or replace
Steel cable is loose
Check whether the steel cable is flat
Rise slowly
Oil filter is blocked
Clean, remove, or replace
Oil pressure is mixed air
Supplemental hydraulic fluid
Overflow valve adjustment is not in place
Adjustment
Hydraulic oil becomes hot
（
45
°
above
）
Replace hydraulic oil
Cylinder seal abrasion
Replace seals
The cylinder lubrication is poor
Replace the lubricant
Slow down
The downward throttle is stuck and has obstructions
Clean, remove, or replace
The hydraulic oil is dirty
Replace hydraulic oil
Explosion-proof parachute valve has obstruction
Replace Explosion-proof parachute valve
Hydraulic hose has an obstruction
Hydraulic hose has an obstruction
Steel cable is not
smooth
No grease lubrication during installation
Replace steel cable
MAINTENANCE
The several pieces of maintenance operations to be carried out are described below. A low operating cost and a long life of the machine are
from routine observation of there operations.
The routine maintenance of the following recommendations can be referred to the use environment and times of the lifter.
Components require lubrication as follow
：
A
：
The steel cable needs lubrication
B
:
The slider inside the column needs lubrication
C
：
All cable axles need lubrication
D
：
The main insurance needs lubrication
E
：
Cable breakage requires lubrication
