BOOM RT9130E-2 SERVICE MANUAL
4-20 Published 11-22-2016, Control # 345-12
NOTE: Use shims as necessary to adjust wear pad so that
the wear pad is just touching or is within 0.078 in
(2mm) of the inner mid section side plate at both
the top and side surfaces of the top radius.
87. Install bottom and side wear pad keeper plate on each
side of the base section and secure with ten capscrews
and washers each.
88. Install top wear pad keeper plate on each side of the
base section and secure with two capscrews and
washers each.
89. Continue to completely slide together.
90. Continue to slide together aligning the lower cylinder rod
end with bushing in base trunnion block. Slide
completely together.
91. Install hydraulic fittings if removed from lower telescope
cylinder rod.
92. Secure the telescope lock plate to the lower cylinder rod
end with four capscrews and hardened washers.
93. If removed, install the five rollers, spindle roller, and
cotter pins to the rear of the base section.
94. Position the guide blocks on the front of the inner mid 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 base. Secure
with four capscrews and washers for each.
95. On the top front of the base section, install bolts,
washers, and three cable pads.
96. Repeat step 95 on the inner mid, installing three cable
pads.
97. Repeat step 95 on the center mid, installing two cable
pads.
98. Repeat step 95 on outer mid, installing two cable pads.
NOTE: The boom assembly must be rotated 180° right
side up to install on crane.
A rollover fixture with webbing is recommended to
rotate boom and sections. Chains are not
recommended. If a rollover fixture is not available,
rotate sections using adequate support with
webbing.
The boom weighs approximately 34,000 lb (15420
kg). The above weight is for the boom without the
swingaway boom extension attached.
99. Lower the boom to ground level and secure with cribbing
to prevent tipping.
100.On the top front of the base section, install clip pins,
washers, and the cable guide assembly.
101.On the left side only, install a RCL cable angle bracket
on the base, inner mid, and outer mid using two
capscrews and washers each.
102.Install the boom in accordance with the INSTALLATION
procedures outlined in the following section.
Installation
NOTE: The following procedure applies to a boom totally
removed from the crane.
1. Attach an adequate lifting device to the boom and
suspend the boom over the machine.
2. Lower the boom into position and align the boom pivot
shaft mounting holes for installation of the pivot shaft to
the superstructure assembly.
3. Lubricate the pivot shafts and related pivot bushings in
the boom assembly and the turntable weldment.
4. Block the boom in place.
5. The boom may need to be raised or lowered to aid in the
installation of the pivot shafts. Remove the hoses from
the counterweight removal cylinder, match up the quick
disconnects of the hoses to the disconnects on the pivot
shaft removal cylinder.
6. Activate the cylinder to install the pivot shafts. Ensure
the pivot shafts seat fully in the pivot bushings in the
boom assembly and the turntable weldment; the pivot
shafts are stepped because the bushings are of different
diameters.
7. Remove the hoses from the pivot shaft cylinder. Match
up the quick disconnects of the hoses to the disconnects
on the counterweight removal cylinder.
8. Install the two pivot lock weldments to secure the pivot
shafts to the turntable weldment. Fasten them to the
pivot shafts with capscrews and washers.
DANGER
Crushing Hazard!
Ensure blocking and lifting devices are capable of
supporting the boom assembly.
DANGER
Crushing Hazard!
Block the boom before doing any work under the boom.
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