EP Equipment CQD16, Service Manual

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197
REV. 07/2016
SERVICE MANUAL - MAST
A
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.
CAUTION
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Secure the cylinder to hose clamp and gently
clamp the cylinder bottom;
Unscrew the cylinder cap (3, Figure 90618)
with cylinder wrench;
Remove the dust ring (2), O-rings (12), seal
(4), O-ring (5) and O-ring (6) from the cylinder
cap;
Pull out the piston rod (7) from the cylinder
tube (1);
Remove the support ring (8), seal (9) and
cover plate (10) from the piston rod;
Clean with hydraulic oil of the same speci
fi ca-
tions;
Replace the problem parts and assembly in
reverse steps.
A2-5.3 Cylinder Installation
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Install the cylinder according to the reverse
order of removal according to A2-5.1;
Add hydraulic oil of the same specifications
into the tank, see Section 2.2.3;
Pull out emergency stop switch and turn on
the key switch;
Repeat forward tilting - backward tilting of the
cylinder to discharge the air within the tubings
and cylinder;
Check the hydraulic oil level and make sure
that the liquid is at standard level.
A2-6 Built-in Side Shifter
A2-6.1 Side Shifter Removal
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Shift the mast forward to the bottom, press
the emergency stop switch and disconnect
the key switch;
Block the truck wheel with wooden wedge;
Unscrew the four bolts (4, Figure 90617),
remove the retaining shelf (1) from the built-in
side shifter (2);
Hydraulic oil may damage truck parts and
contaminate the environment. When removing
joints or tubings, place a clean container under
it for discharge of hydraulic oil.
CAUTION
- Remove the right shifting tubing (4, Figure
90615) and left shifting tubing (5) from the
built-in side shifter;
Before going on with the next step, please
fix the side shifter properly first. Be sure to
avoid the falling of side shifter during removal,
resulting in personal injury.
CAUTION
- Unscrew the bolt (7, Figure 90617), pull out
the pin shaft (8) and remove the built-in side
shifter (2).
A2-6.2 Side Shifter Installation
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Install the side shifter according to the rever-
se order of removal according to A2-6.1;
Add hydraulic oil of the same specifications
into the tank, see Section 2.2.3;
Pull out emergency stop switch and turn on
the key switch;
Repeat left shifting - right shifting operations
to discharge the air within the tubing and side
shift cylinder;
Check the hydraulic oil level and make sure
that the liquid is at standard level.