JLG 534D-10 - Manual (Page 50)

Boom
3.22 534D-9, 534D-10 & 544D
3. Remove the snap rings and pin from each end of the
extend/retract cylinder.
4. Remove the extend/retract cylinder and store in a
designated area.
3.10.3 Tilt Cylinder Removal
See Section 8.9.1, “General Cylinder Instructions.”
3.10.4 Second, Third & Fourth Boom Section
Removal
Note: Work on the boom assembly is performed with
the assembly up-side down.
It is best to remove the boom sections in the order in
which they were assembled. If a section needs to be
separated, this presents an excellent opportunity to
check all sections for serviceability. The fourth, third and
second sections should be removed as a package.
1. Loosen and remove the bottom rear wear pads and
rear side wear pads from the second boom section.
Leave all the top wear pads in place to aid sliding
during the section removal. Tag each pad, backing
plate, shim and bolts from each location
2. Release tension from the hoses on the hose take-up
weldment (3).
3. Loosen the tilt circuit hoses, auxiliary circuit hoses
and any electrical hoses (4) if equipped on the hose
take-up weldment. Plug the hose ends and tube
ends to prevent dirt and debris from entering the
hydraulic system.
4. Disconnect the top front chains (5) from the chain
clevis on the first and second boom section.
5. Release the chain tension from the front top chains.
6. Remove the front top chain rollers from the second
and third boom sections.
7. Remove the chain adjustment block (6) from the first
boom section.
8. Remove all wear pads from the front of the first
boom section. Tag each pad, backing plate, shim
and bolts from each location
9. Carefully pull the second, third and fourth boom
sections together from the first boom section and
place on suitable supports for further separation.
MX0330
1
2
MX0340
5
5
6 3
4