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18
Crane 4000LE
07-2022
RL6002-001
Crane 4000LE Installation Manual
In-ground Motion Assist 360 drive and speed control
Remote control enclosure
Chapter 5
Fig. 5.8.1 Bookfold mechanism
1
4
2
1
2
3
4
5.8 Bookfold
mechanism
5.8.1 Bookfold mechanism operation.
1. During normal operation, hanger spring tension holds
wings in radial position by means of steel balls in
hangers engaging in detent blocks in center shaft top
and bottom discs.
2.
Excess pressure on wing compresses spring
(to breakout force), ball is rotated from detent block
in disc.
4. Minimal pressure is then required to continue
bookfolding. Wings bookfold either way, providing a
clear passage on both sides.
Fig. 5.7.1 Shaft hanger assembly
5.7 Hanger assembly, steel shaft RS6045-0X0
Part / Assembly
Description
1
RC6369-0X0
Hanger body
2
RC6156-01G
Hex bolt, 0/375"- 16 x 4"
3
Lock washer, 3/8"
4
Hex nut, 0.375"-16
5
Spring
6
Ball, 7/8" diameter
Table 5.7.1 RS6045 shaft hanger assemblies and parts
1
2
4
5
6
3
Fig. 5.9.1 Quarter post/end wall
RE6019-010
TIPS AND RECOMMENDATIONS
Reference Crane shop drawings for
quarter post/end wall and center
post design for job.
5.9 Enclosure
posts
Fig. 5.9.2 Center post
RE6007-0X0