11-3
5540F/YB5515 SERVICE MANUAL STRUCTURALS
Retracting the Fourth Boom Section
1. Extend the outriggers.
2. Lower the boom to its horizontal position.
3. Completely retract the boom (Figure 11-4).
4. Remove the snapper pin from retaining pin “A
(Figure 11-4). Remove pin “A” from holes “D” and “E” at
the rear of the fourth boom section and the bracket on
the third boom section.
5. Hook the handle of pin “A” into hole “B”.
6. Fully extend the telescope cylinder by actuating the
telescope lever in the cab (Figure 11-3).
7. Install pin “A” into holes “C” and “F”.
8. Completely retract the fourth boom section
(Figure 11-6).
9. Remove pin “A” from hole “C”.
10. Install pin “A” into holes “D” and “E”. Install the snapper
pin to retain pin “A”.
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