70
Lifting
Lifting
Lifting
Lifting system
system
system
system
Test
item
Test content Tool
Per day
(8h)
Per month
(200h)
Every 3
months
(600h)
Every 6
months
(1200h)
Each year
(2400h)
Lift
cylind
er
Whether piston rod, thread
connection of piston rod are loose,
deformed or damaged.
○ ○ ○ ○
Operating situationn ○ ○ ○ ○ ○
Leakage situationn ○ ○ ○ ○ ○
Wear, damage situationn of pin and
cylinder bearing
○ ○ ○ ○ ○
Hydra
ulic
pump
Whether there is oil leakage or
noise in the hydraulic pump
○ ○ ○ ○ ○
Wear situationn of the drive gear for
hydraulic pump
○ ○ ○ ○
Hydraulic
Hydraulic
Hydraulic
Hydraulic system
system
system
system
Test item Test content Tool
Per day
(8h)
Per month
(200h)
Every 3
months
(600h)
Every 6
months
(1200h)
Each year
(2400h)
Hydraulic
oil
Oil level test
○ ○ ○ ○ ○
Clean oil filter core
● ○ ○
Remove impurity and
replace oil
● ○ ○
Oil return
filter
Replace oil return filter
● ●
Control
valve stem
Whether the connection is
loose
○ ○ ○ ○ ○
Operation situation
○ ○ ○ ○ ○
Multi-way
valve
Oil leakage
○ ○ ○ ○ ○
Operation situations of
safety valve and tilted
latching valve
○ ○ ○ ○
Measure the pressure of
safety valve
○ ○
Pipeline
connector
Leakage, loosing,
breakage, distortion and
damage situations
○ ○ ○ ○ ○
Replace the pipe
● 1-2 year