4-24 3-29-2018 Control # 610-00
OPERATING CONTROLS - CRANE NBT40-1 SERIES OPERATOR MANUAL
a. Slowly hoist up until there is a slight tension on hoist
rope. It may be necessary to override A2B function
to tension rope.
b. A2B weight needs to be resting on wedge socket so
that there is slack in anti-two-block-chain.
NOTE: There needs to be enough slack in A2B chain so
that A2B switch does not switch between open
and close during travel.
If chain is too tight, road bounce causes A2B switch
to open and close numerous times and this can
damage switch.
9. Turn off ignition and all other switches at ground control.
10. Close and/or secure all windows and doors.
11. Exit cab, lock door, and stow access ladder.
12. Secure any loads or lifting devices on chassis bed or
body.
13. Ensure tires are properly inflated.
14. Disengage Power Take Off (PTO) and start engine from
chassis cab.
15. Release park brake before moving equipment.
.
FIGURE 4-19
Wedge socket with
bracket to support anti-
two-block weight.
There needs to be slack
in anti-two-block chain in
preparation for road
travel. See page 6-11 for
proper rigging of anti-two-
block weight.
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