Grove Published 11-22-2016, Control # 345-12 4-13
RT9130E-2 SERVICE MANUAL BOOM
7. On the top front of the base section, remove clip pins
washers and the cable guide assembly.
8. Remove the capscrews, washers and the tele lock plate
from the lower telescope cylinder.
NOTE: The combined weight of the boom inner mid, center
mid, outer mid, and fly sections, including the
telescope cylinders, is approximately 11,882 kg
(26,200 pounds).
9. Slide the assembly out of the base part way.
10. Remove the two capscrews and washers securing each
top wear pad keeper plate to the base section. Remove
the keeper plates.
11. Remove the ten capscrews and washers securing the
bottom and side wear pad keeper plates to the base
section. Remove the keeper plates.
12. Remove the two capscrews and washers securing each
front top wear pad to the base section. Remove the wear
pads and shims, noting quantity, size, and location of
shims.
13. Lift up on the front of the base and remove the bottom
and side wear pads and shims from the base section,
noting quantity, size, and location of shims.
14. Continue to pull the assembly from the base section
removing the top rear wear pads from the inner mid
section as they clear the base section.
15. Remove the two flat headed screws securing the rear
side wear pads to the inner mid section. Remove the
wear pads and shims, noting quantity and size of shims.
16. Remove the two capscrews, washers, spacer, and lower
wear pad from the inner mid, noting the quantity and size
of shims.
17. Remove the cotter pins, shaft, and roller from the rear of
the inner mid.
18. Remove the four capscrews and hardened washers
securing each trunnion mounting plate and block from
the lower cylinder barrel.
19. Reach in through the rear of the inner mid to the bottom
rear pad mounted on the center mid section. Remove
the two capscrews and washers for that pad. Remove
pad and shims, noting the number of shims.
20. Remove the bolts, washers, pusher block, and shims
from the front left side grease access hole, noting the
quantity of the shims.
NOTE: Together the boom center mid, outer mid and fly
sections, and telescope cylinders weigh
approximately 20,700 lb (9388 kg).
21. Slide the assembly out of the inner mid part way.
22. If necessary, remove the four capscrews, washers and
hex nuts securing the stop block to the lower front of the
inner mid. Remove the guide block and note the position
it was in.
23. Remove the two capscrews and washers securing each
top wear pad keeper plate to the inner mid. Remove the
keeper plates.
24. Remove the nine capscrews and washers securing the
bottom and side wear pad keeper plates to the inner
mid. Remove the keeper plates.
25. Remove the four capscrews and washers securing each
front top wear pad to the inner mid. Remove the wear
pads and shims, noting quantity, size, and location of
shims.
26. Lift up on the front of the inner mid and remove the
bottom and side wear pads and shims from the inner
mid, noting quantity, size, and location of shims.
27. Continue to pull the assembly from the inner mid,
removing the top rear wear pads from the center mid as
they clear the inner mid.
28. Remove the two flat head screws securing the rear side
wear pads to the center mid section. Remove the wear
pads and shims, noting quantity and size of shims.
29. Remove the two capscrews and washers securing each
of the bottom wear pads to the center mid and remove
the wear pads noting quantity and size of shims.
30. If necessary, remove both grease fittings, connectors,
and grease lines from the rear of the inner mid.
31. Remove the mounting plates from the lugs on the lower
cylinder barrel.
32. Tag and disconnect the hydraulic hoses and tubes from
the telescope cylinders, the two cam valves and the
hydraulic manifold. Cap and plug all openings.
33. Remove the bolts and nuts securing each cam valve to
its mounting plate and remove the valves.
34.
Remove the four capscrews and washers securing the
hydraulic manifold to the mounting plate and remove the
hydraulic manifold and th
e shims, noting the quantity of
the shims.
35. On the right side of the center mid, remove the valve
pusher rod from the tube.
36. On the left side of the center mid, remove spring and the
valve pusher weld from the tube. Disassemble as
necessary.
37. Place blocking under the lower second stage cylinder
barrel.
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