JLG 534D-10 - Manual (Page 51)

3.23 534D-9, 534D-10 & 544D
Boom
3.10.5 Third & Fourth Boom Section Removal
Note: Work on the boom assembly is performed with
the assembly up-side down.
1. Loosen and remove the bottom rear and side wear
pads from the third boom section. Tag each pad,
backing plate, shim and bolts from each location
2. Remove standard and optional hose sheaves (1)
from the rear of the second boom section.
3. Remove the chain and chain clevis (2) from the rear
of the second boom section.
4. Remove the hydraulic sub-assembly bracket (3) and
hardware from the rear of the third boom section.
5. Pull the Hydraulic sub-assembly (4) partially out
through the rear of the boom to access the hoses.
6. Loosen and remove the hoses (5) from the rear of
the hydraulic sub-assembly.
7. Release the tension on the clevis before proceeding.
8. Loosen and remove the chain adjustment block from
the bottom of the boom.
9. Loosen and remove all the wear pads from the front
of the second boom section. Tag each pad, backing
plate, shim and bolts from each location.
10. Carefully pull the third and fourth boom sections (6)
from the second boom section.
11. Remove the chain (7) from the second boom section
to the third boom section after the boom sections are
free from each other.
12. Place the third and fourth boom section on suitable
supports.
3.10.6 Fourth Boom Section Removal
Note: Work on the boom assembly is performed with
the assembly up-side down.
1. Remove the bottom rear and side wear pads from
the fourth boom section. Tag each pad, backing
plate, shim and bolts from each location
2. Loosen and remove the 3/4 in (19 mm) chain (8)
through the rear of the fourth boom section.
3. Loosen and remove the retract chain roller (9) at the
rear of the third boom section.
MX0360
2
1
3
MX0370
5
4
MX0350
6
7
MX0380
8
9