BOOM RT9130E-2 SERVICE MANUAL
4-18 Published 11-22-2016, Control # 345-12
clearance between the pads and the pad box weldment
on the outer mid section. Install shims as necessary so
there is no more than 0.03 in (1 mm) clearance between
the wear pads and the fly section.
36. Install outer mid front top wear pads and shims as noted
during disassembly. Secure with four capscrews and
hardened washers each.
NOTE: Use shims as necessary to adjust wear pad so that
the wear pad is just touching or is within 0.078 in (2
mm) of the fly section side plate at both the top and
side surfaces of the top radius.
37. Install bottom and side wear pad keeper plate on each
side of the outer mid and secure with eight capscrews
and washers each.
38. Install top wear pad keeper plate on each side of the
outer mid and secure with two capscrews and washers
each.
39. Continue to completely slide together.
40. Lift up on end of the upper cylinder to align barrel
mounting plate holes with holes in outer mid. Secure
each with four capscrews and hardened washers.
41. Remove any blocking under the upper cylinder.
42. Detach the retract cables from the upper telescope
cylinder, place the cables around each retract sheave,
place the sheave onto the shaft weld and use four bolts
and washers to secure each shaft weld assembly into
the rear of the outer mid, making sure that the retract
cables are not crossed and twisted.
43. Position the guide blocks on the boom nose to the
correct clearance of 0.00 in to 0.06 in (0 mm to 2 mm)
with respect to the guide bars on the outer mid. Secure
with four capscrews and washers for each.
44. Place the mounting plates and blocks on the second
stage lower cylinder barrel mounting lugs.
45. At the rear of the outer mid install the fittings and hoses
to both retract sheaves, grease sheaves.
46. At the rear of the center mid section, install the upper
wear pad grease line, connector and grease fitting on
each side.
NOTE: The grease lines are designed to be used only on
one side or the other (i.e. RH or LH).
47. Install the two side lower side wear pads and shims on
the rear of the center mid with two capscrews and
washers. The bottom rear pad and shims will be installed
after the center mid assembly is inserted into the inner
mid.
48. Position the front end of the center mid at the rear of the
outer mid/fly/telescope cylinder assembly.
49. Slide the outer mid/fly/telescope cylinder assembly into
the center mid section installing top rear wear pads in
pockets of outer mid section (cutout should align with
grease line). Stop and install rear side wear pads and
shims on outer mid section with two flat head screws
each.
NOTE: Use shims as they are necessary to adjust wear
pads within 0.078 in (2 mm) of the center mid
section side plate. Use equal number of shims on
each side.
50. Install bottom and side front wear pads in center mid. Lift
up in the front of the outer mid section assembly, check
clearance between the pads and the pad box weldment
on the center mid section. Install shims as necessary so
there is no more than 0.03 in (1 mm) clearance between
the wear pads and the outer mid section.
51. Install center mid front top wear pads and shims as
noted during disassembly. Secure with four capscrews
and washers each.
NOTE: Use shims as necessary to adjust wear pad so that
the wear pad is just touching or is within 0.078 in (2
mm) of the outer mid section side plate at both the
top and side surfaces of the top radius.
52. Install bottom and side wear pad keeper plate on each
side of the inner mid and secure with nine capscrews
and washers each.
53. Install top wear pad keeper plate on each side of the
center mid and secure with two capscrews and washers
each.
54. Continue to slide together aligning the upper cylinder rod
end with bushing in center mid trunnion. Slide
completely together.
NOTE: Use shims as necessary to adjust guide block so
that the guide block is within 0.118 to 0.197 in (3 to
5 mm) of the top of the outer mid section.
55. Secure the telescope lock plate to the upper cylinder rod
end with four capscrews and hardened washers.
56. Install bolt, nut, and hardened washer in right side valve
tapped pusher rod. Install the rod assembly through hole
on right
side of center mid.
57. Install left side valve pusher weld assembly in tube on
left side of center mid, attach return spring.
58. Lift up on end of the lower cylinder to align barrel
mounting plate holes with holes in inner mid. Secure
each with four capscrews and hardened washers.
59. Remove any blocking under cylinder.
60. Access through the rear of the inner mid to install the
bottom wear pad and shims onto the rear of the center
mid with two capscrews.
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