99
Wear of reduction gearbox
connectors
√
√
pipe
Damage, leakage, rupture
√
√
√
Loose situation of
connection and clamping
parts
√
√
√
Brake
pump
Leakage situation
√
√
√
√
√
Check oil level,
oil changing.
√
√
√
×
Pump situation
√
√
Pump leakage, damage
√
√
Pump piston cups, one-way
valve wear damage,
replace
×
（
8
）
Hydraulic system
Maintena-
nce item
Maintenance item
Tools
Every-
day
(8h)
Every
week
(50h)
Every
month
(200h)
Three
months
(600h)
Six
months
(1200h)
Hydraulic
oil tank
Check the oil, oil change
√
√
√
√
×
Suction filter cleaning
√
Exclude eyewinker
√
Control
lever
Whether the connection is
lossen
√
√
√
√
√
Operation condition
√
√
√
√
√
Multitande
m valve
Leakage
√
√
√
√
√
Safety valve and self-locking
tilt valve operation condition
√
√
√
Measuring the pressure of
the safety valve
Oil
gauge
√
Pipeline
joint
Leakage, loosening,
fracture, deformation,
damage
√
√
√
Change the tube
×
1
～
2years
Hydraulic
pump
Hydraulic pump is leaking or
there is noise
√
√
√
√
√
Hydraulic pump gear wear
√
√
√
（
9
）
Lifting system
Maintena-
nce item
Maintenance item
Tools
Every-
day
(8h)
Every
week
(50h)
Every
month
(200h)
Three
months
(600h)
Six
months
(1200h)
