66
REV. 09/2020
67
REV. 09/2020
HYDRAULIC SYSTEM
HYDRAULIC SYSTEM
7
7
7.5.4 Cylinder Maintenance
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-
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Use suitable hose clamps to avoid cylinder
deformation caused by severely tight hose
clamp.
Carry out the maintenance work in a clean
environment to prevent impurities from enter-
ing into cylinder, causing cylinder damage;
During the installation, hydraulic oil of
the same specifications must be used for
cleaning or lubrication.
-
Secure the cylinder to hose clamp and gently
clamp the cylinder bottom;
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Unscrew the nut (4, Fig3530-40004SM) and
bolt (3), then remove the ear (2) from the
piston rod (18);
-
Unscrew the cylinder cap (13) with cylinder
wrench;
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Remove the dust ring (6), check ring (7),
retainer ring (8), seal (9), and check ring (10)
from the cylinder cap (13);
-
Remove the bearing (14), O-ring (11) and
retainer ring (12) from the cylinder cap (13);
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Pull out the piston rod (18) from cylinder block
(15);
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Remove the seal (16) and support ring (17)
from the piston rod;
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-
Clean with hydraulic oil of the same specifi-
cations;
Replace the problem parts and assembly in
reverse steps.
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-
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If the piston rode or cylinder tube is damaged,
please replace the entire cylinder.
If the seals are aged or damaged, please
replace the complete set of seals.
When replacing or repairing the cylinder,
please refill the lubricant through the grease
nipples at both ends of the cylinder.
CAUTION
CAUTION
7.6
Refueling Cap
7.6.1 Removal and Installation
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Turn off the truck power and remove the key;
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Loosen the nuts (1) and remove the tubings
(2) from the refueling cap (4);
-
Unscrew the eight bolts (3) and remove the
refueling cap (4) from the chassis;
-
Install according to the reverse order of rem-
oval.
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Loosen the oil drain plug (6), drain the
hydraulic oil within the oil tank;
Add / Replace hydraulic oil
7.6.2 Hydraulic Oil
Hydraulic oil may damage truck parts and con-
taminate the environment. When replace the
hydraulic oil, place a clean container under the
drainage outlet for discharge of hydraulic oil.
CAUTION
-
Remount the oil drain plug (6), Loosen the oil
fill cap (5) and add the hydraulic oil of same
specification through oiling port;
-
Remount the oil fill cap (5).
4
5
3
1
2
Fig3132-70007SM
