Published 08-25-09, Control # 077-04 4-13
RT9130E SERVICE MANUAL BOOM
41. If necessary, remove the four capscrews, washers and
nuts securing the guide block to the lower front of the
center mid. Remove the guide block and note the
position it was in.
42. Remove the two capscrews and washers securing each
top wear pad keeper plate to the center mid. Remove
the keeper plates.
43. Remove the nine capscrews and washers securing the
bottom and side wear pad keeper plates to the center
mid. Remove the keeper plates.
44. Remove the four capscrews and washers securing each
front top wear pad to the center mid. Remove the wear
pads and shims, noting quantity, size, and location of
shims.
45. Lift up on the front of the center mid section and remove
the bottom and side wear pads and shims from the
center mid, noting quantity, size, and location of shims.
46. Continue to pull the assembly from the center mid,
removing the top rear wear pads from the outer mid
section as they clear the center mid.
47. Remove the two flat head screws securing the rear side
wear pads to the outer section. Remove the wear pads
and shims, noting quantity and size of shims.
48. Remove the two capscrews and hardened washers
securing the bottom wear pad to the outer mid and
remove the wear pad.
49. If necessary, remove both grease fittings, connectors,
and grease lines from the rear of the outer mid.
50. Remove the retract cable sheave mounts from the rear
of the outer mid section, remove retract sheaves.
51. Remove the mounting plates from the second stage of
the lower cylinder barrel mounting lugs.
52. Place blocking under the upper telescope cylinder
barrel.
53. Remove the four capscrews and hardened washers
securing each trunnion mounting plate from the upper
cylinder barrel mounting plate to the outer mid.
NOTE: Together the boom, fly section, and telescope
cylinders weigh approximately 5087 kg (11,217
pounds).
54. Slide the assembly out of the outer mid part way.
55. Remove the two capscrews and washers securing each
top wear pad keeper plate to the outer mid. Remove the
keeper plates.
56. Remove the eight capscrews and washers securing the
bottom and side wear pad keeper plates to the outer
mid. Remove the keeper plates.
57. Remove the four capscrews and washers securing each
front top wear pad to the outer mid. Remove the wear
pads and shims, noting quantity, size, and location of
shims.
58. Remove the four capscrews and hardened washers
securing the stop block to the bracket on the bottom
front of the outer mid section.
59. Lift up on the front of the outer mid section and remove
the bottom and side wear pads and shims from the outer
mid, noting quantity, size, and location of shims.
60. Continue to pull the assembly from the outer mid,
removing the top rear wear pads from the fly section as
they clear the outer mid.
61. Remove the two flat head screws securing the three rear
wear pads to the fly section. Remove the wear pads and
shims, noting quantity and size of shims.
62. If necessary, remove both grease fittings connectors,
and grease lines from the rear of the fly section.
NOTE: The telescope cylinder assembly weighs
approximately 2041 kg (4500 pounds).
63. Slide the telescope cylinder assembly part way out
(approximately ten feet) of the rear of the fly. Support the
end of the telescope cylinders with adequate blocking.
NOTE: The telescope cylinder assembly weighs
approximately 1043 kg (2300 pounds).
64. Slide the lower two stage cylinder farther out of the fly
until the end of the cylinder is out of the fly.
65. Remove the four capscrews and washers holding the
top plate cover to the cylinder mount. Remove the two
flat head screws securing each wear pad if necessary.
66. Remove the two nuts and swivel nuts that attach the sled
weld to the two adjusting bolts at the end of the lower
cylinder.
67. Slide the sled weld off the two adjusting bolts and
remove the adjusting bolts from the shaft on the lower
cylinder.
68. Rotate the dead ends of the two retract cables so the
ends can clear the cylinder mount, remove the retract
cables from the cylinder mount.
69. Remove the lower cylinder assembly and place on
adequate support.
DANGER
Ensure the telescope cylinders are securely blocked and
some means used to hold them together to prevent any
accidental movement. Severe injury can occur if the
cylinders drop.
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