Sinoboom GTJZ0612E, Maintenance Manual

Page: 60 / 94

© Jul.2020 5-2 GTJZ0612E&0812E&1012E&1212E Maintenance Manual
MAINTENANCE PROCEDURES
Removing the Extension Platform
1. Remove the platform. Refer to Removing the Plat-
form, page 5-1 .
2. Loosen the bolts of all rails. Remove rails and put
them aside.
3. Loosen the bolts and pin on the roller bracket of the
extended platform.
4. Loosen the bolts and pin on the roller bracket of the
fixed platform and remove the roller bracket.
5. Lift the extended platform from the front end and
the rear end. Remove the extended platform.
Figure 5-2
SCISSOR ARM
COMPONENTS
Removing the Scissor Arm
NOTICE
Perform this procedure when the scissor arm is fully
retracted.
1. Remove the platform and extension platform. Refer
to
Removing the Platform, page 5-1 and Remov-
ing the Extension Platform, page 5-2 .
2. Disconnect the hydraulic system and electric sys-
tem connecting the scissor arm with the chassis.
NOTICE
While removing the rubber hose and connector,
be sure to remove and mark the O-rings at the
end of the rubber hose or hose.
3. Connect the scissor arm with a traveling crane.
4. Remove the bolts of the fixed clevis pin.
Figure 5-3
5. Pull out the clevis pin.
CRUSH HAZARD
Do not allow hands, other body
parts and clothing to come in con-
tact with moving machinery parts.
6. Move the travelling crane parallel to move the slide
block out of the slide chute.
7. Remove the scissor arm assembly.
Removing the Lifting Oil Cylinder
HIGH-PRESSURE HAZARD
Slowly remove the hydraulic
components to reduce hydraulic oil
pressure. High hydraulic oil pressure
could penetrate the skin. Seek
medical attention immediately.
1. Connect the scissor arm to the travelling crane. Lift
the scissor arm until the safety arm can be set up.
2. Support the scissor arm with the safety arm.
3. Disconnect and plug the hoses and fittings on the
hydraulic cylinder.