Pivoting Extension Boom
10
9.2.1 Assembly (first pivot)
3.
Once the boom base is secured to support structure,
align horizontal steel tube (#7) to pivot joint (#3)
boom base pivot support bracket. Remove friction
disks (#10) and steel pin (#13) from boom base pivot
bracket.
4.
Slide horizontal steel tube pivot section into boom
base pivot bracket. NOTE: Do not attempt to remove
pivot bushings (# 12) from pivot joint.
5.
Insert one (1) friction disk (#10) over the pivot
section and one (1) under the pivot section. Insert
steel pressure plate (#9) over the top friction disk,
sandwiched between the friction disk and the boom
base top of pivot bracket.
6 .
Using a spike, align holes of friction disks and pressure
plate to pivot assembly, ready for steel pin insertion.
NOTE: Ensure pressure plate grooves are aligned with
holes on top part of pivot boom base support section.
7.
Remove cotter pin from steel pin (#13). Insert steel
pin from underneath boom base pivot support
bracket until completely through. Secure with cotter
pin.
8.
Temporarily secure the steel pressure plate by slightly
screwing the (2) screws (#29) into steel pressure plate
grooves.
9.
Remove last nut and washer from threaded end of
pull rod. Insert pull rod threaded section into pull
rod horizontal support bracket (#9a) about 12"
(30 cms) into the bracket.
9/229
17/425
17/425
38.10/752
41.10/1027
12.2/305
11/279
9
9A
9
10
12
7
12
10
13
3
29
