SET-UP OPERATOR MANUAL NBT50
4-4 Published 03-23-2018 Control # 243-14
JIB OPERATION
Deployment Procedure
1. Using boom telescope function, fully retract boom.
2. Using lift function, lower boom so that attachment pins (6
and 7, Figure 4-3) are easily accessible from the ground.
NOTE: When lowering the boom below horizontal, two
persons may be required. With the telescope
control in neutral, the boom may slide out when
below horizontal.
3. Remove cable keeper pins from boom sheave case and
jib. Remove hook block. Remove loadline from boom
sheave case and place in an area to minimize possible
damage.
4. Install right side attachment pins (6, Figure 4-3) in upper
and lower jib lugs, secure with retainer spring clips.
These pins are used as a pivot point to swing jib into the
deployed position.
5. Locate the stowed position of attachment pins (7,
Figure 4-3). If in jib attachment holes or boom sheave
case jib holes, remove pins from storage location.
6. Remove jib swing pin (5, Figure 4-3) from top lug of jib.
7. Remove stow pin (1, Figure 4-3) and stow in hook
bracket (3), secure with spring clip.
8. Attach tag line to sheave case end of jib.
9. Using the lift function, raise the boom to the horizontal
position.
10. Using telescope function, slowly extend boom
approximately 30 cm 12 in. This procedure will pull the
jib out of the hook bracket (3, Figure 4-3).
11. Using tag line, swing jib into deployed position.
12. Install upper left attachment pin (7, Figure 4-3) and
spring clip. A slight hammer strike may be necessary to
install pins. Always use proper eye protection during this
step.
CAUTION
Use caution during this step. The jib is free to swing away
from the boom during boom extension.
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