2
31200804
SkyTrak Boom Pivot Repair Instructions
For Kit 1001141603
7. Using a portable grinder or air carbon-arc equipment,
remove both boom pivot plates (1) from the pivot
tower weldment (2).
8. Inspect the affected area of the pivot tower weldment
for cracks. If any discrepancies are evident, notify
JLG Safety 1-877-554-7233 (877-JLG-SAFE) for
further evaluation.
9. Grind the repair area (3) flush and prepare surfaces
for welding.
10. Locate the Boom Pivot Plate Weldment (4) P/N
1001141633 to the pivot tower weldment (2). See
“Boom Pivot Plate Welding Locations” on page 3.
Tack into place.
11. Completely weld the boom pivot plates to the pivot
tower weldment using the recommended weld
material with types and sizes. See “Boom Pivot Plate
Welding Locations” on page 3.
12. Inspect welds using the magnetic particle or
dye-penetrant inspection methods to assure there
are no cracks or deformities. If any cracks or
deformities exist, grind to remove affected area(s)
and repeat the weld and inspection procedures.
13. Remove the three retaining bars (5) connecting the
two pivot plates.
14. Clean, prime and paint the affected areas.
Note: Refer to Service Manual 31200353, Section 3.4.8
for detailed boom assembly installation.
15. Properly connect the battery.
16. Verify the proper operation of all boom functions
through a minimum of five cycles.
17. Inspect the repair areas for discrepancies. Contact
JLG Safety 1-877-554-7233 (877-JLG-SAFE) for
further evaluation if any discrepancies are found.
18. Close and secure the engine covers.
19. Remove the Do Not Operate Tags from both the
ignition key switch and the steering wheel
.
20. Return machine to service.
NOTICE
Do not damage the parent metal during this procedure.
MH7000
2
1
MH7020
3
MH7010
5
2
5
5
4
