6-2 3-29-2018 Control # 610-00
SET-UP NBT40-1 SERIES OPERATOR MANUAL
pin B, are removed and swing pins (C1) are in place. Jib
could swing uncontrollably if boom is not horizontal.
6. Equipment shall be fully set up according to proper set-
up procedures outlined previously when stowing or
unstowing jib.
7. Operate boom and swing functions very slowly and
carefully when using jib since jibs can increase boom
length by 50%.
8. Area where jib swings around must be clear of
obstructions and power lines when stowing and
unstowing jib.
9. Use safety glasses when pounding pins with hammer.
10. Do not extend/retract boom unless boom is horizontal
when stow pin (A, Figure 6-1) and jib swing pin (B) are
removed during stowing or unstowing procedures.
11. Always put spring clips in pins to ensure that they will
stay in place.
12. When the jib is stowed, the boom can not be fully
retracted if a boom tip attachment option is installed.
Also, on manually extendable jib options:
1. Extension retaining pin (E) must always be installed
when operating.
2. All swing around (stow and unstowing) operations shall
be done with jib retracted and pinned.
3. Extendable section may slide out of 1
st
section jib when
pin (E) is removed. Keep personnel clear of area.
JIB OPERATION
Deployment Procedure
1. Using boom telescope function, fully retract boom.
2. Using lift function, lower boom so that jib deployment
pins (C1, Figure 6-1) and (C2, Figure 6-1) are easily
accessible from the ground.
NOTE: When lowering the boom below horizontal, the
operator may require the aid of an assistant while
operating the controls to retract the boom. With the
telescope control in neutral, the boom may creep
out when below horizontal.
3. Install pins (C1, Figure 6-1) in upper and lower jib ears
and secure with retainer spring clips. These pins are
used as a pivot point to swing jib into the deployed
position.
NOTE: A slight hammer strike may be necessary to install
pins. Always use proper eye protection during this
step.
4. Locate the stowed position of pins (C2, Figure 6-1). If in
jib attachment holes or boom sheave case jib holes,
remove pins from storage location.
5. Remove jib swing Pin (B, Figure 6-1) from top ear of jib.
6. Remove stow Pin (A, Figure 6-1) and stow in hook
bracket (D), secure with spring clip.
7. Attach tag line to sheave case end of jib.
8. Using the lift function, raise the boom to the horizontal
position.
9. Using telescope function, slowly extend boom
approximately one foot. This procedure will pull the jib
out of the jib stow bracket (H,Figure 6-1).
.
10. Using tag line, swing jib into deployed position.
11. Remove cable keeper pins from boom sheave case and
jib. Remove hook block. Pivot jib slightly to allow for
loadline to be removed from boom sheave case.
Remove loadline from boom sheave case and place in
an area to minimize possible damage.
12. Pivot jib into place, visually aligning the upper (C2,
Figure 6-1) pin holes. Install upper (C2) pin and spring
clip.
NOTE: A slight hammer strike may be necessary to install
pins. Always use proper eye protection during this
step.
CAUTION
Boom tip attachment can contact jib in stowed position
when boom is fully retracted. Contact can cause damage
to boom extension system and jib stow system. Boom
must be left extended .2m (.5 ft) to prevent contact. Boom
attachment must be removed for retracted boom lifting
operations.
CAUTION
Use caution during this step. The jib is free to swing away
from the boom upon boom extension.
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