Published 08-25-09, Control # 077-04 4-49
RT9130E SERVICE MANUAL BOOM
12. Install the limit switch to the head of the 7 m section.
13. Reeve the hoist cable on the hook block.
14. Attach lifting limit switch weight and guide hoist cable
through the weight.
Removing the 26 m/34 m Boom Extension
Requirements
• The crane is on outriggers or the main boom.
• An auxiliary crane must be ready
1. Fully retract and set down main boom.
2. Remove lifting limit switch weight.
3. Reeve out hoist cable from the hook block.
4. Remove hoist cable and fold in deflection sheaves on all
parts of the boom extension.
5. Reel hoist cable up to the main boom head.
6. If necessary, raise the lattice extension to the 0°
position.
7. If equipped with hydraulic luffing boom extension,
disconnect the hydraulic connection between lattice
extension and main boom.
If necessary, also disconnect the hydraulic connection to
the hose drum.
8. Disconnect electrical connections.
9. Remove the locking pins on the left-hand side between 7
m section and 11 m section.
10. Swing the 7 m section onto the 11 m section side until
the connection between the two sections engages.
11. Establish connection between 7 m section and 11 m
section.
12. Remove folded two-stage swingaway lattice extension
from 8 m section.
13. Remove 8 m sections from the main boom:
For 26 m boom extension and 8 m section
For 34 m boom extension both 8 m sections
Description of Rigging Work
Installing/Disassembling 8 m Sections
• In order to rig the 26 m boom extension you must install
the 8 m section with support roller in front of the main
boom head.
• To rig the 34 m boom extension you must also mount the
8 m section without support roller in front of the 8 m
section with support roller.
NOTE: An auxiliary crane must be used to install and
remove the 8 m sections.
The securing pins (1) for the connection are in the holders on
the foot of the 8 m sections and are secured with retaining
pins (Figure 4-12).
Installing 8 m Sections
• Sling the 8 m section with support roller on an auxiliary
crane and lift it in front of the main boom head so that the
bearing points (2) and (3) sling on both sides
(Figure 4-12).
• Insert the securing pins on both sides into the bearing
points.
• Secure all pins with retaining pins.
• For the 34 m boom extension, install the second 8 m
section in the same way as the first 8 m section.
Removing 8 m Sections
• Sling the 8 m section on an auxiliary crane and fit it until
the weight has been taken off the bearing points (2) and
(3) (Figure 4-12).
• Release the pins and knock them out of the bearing
points (2) and (3) on both sides (Figure 4-12).
• Insert the pins into the holders on the foot of the 8 m
sections and secure them with retaining pins.
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