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NATIONAL CRANE
Published 11-01-2020 Control # 710-00
4-29
NBT60XL OPERATOR MANUAL
SET-UP
4
3.
(Optional) Set the camera display to view the rear view
camera as necessary.
4.
Set display in Operator’s Console to the
RCL Operating
Mode Screen (Figure 4-19) (see
).
5.
While watching the RCL display, rotate superstructure
so boom is over the rear of the crane and
counterweights are over the counterweight stowage
area. Pull the House Lock handle on the console to
engage the house lock. Using the house lock will assist
in aligning the counterweights. For more information,
see
The Counterweight Removal Slew Position Indicator
(yellow arrows) (1, Figure 4-19) appears in the RCL
display, which indicates the rear of the superstructure is
nearly directly above the counterweight stowage area on
the carrier deck.
Ensure vertical alignment of counterweight to the
counterweight mounting lugs on the carrier deck or top
counterweight section to bottom counterweight section
with the optional rear view camera or by leaving the cab
and performing a visual inspection. If necessary, retract
the house lock and rotate the superstructure until
alignment is achieved.
6.
Remove the superstructure pins (4, Figure 4-20) that
secure the counterweight to superstructure.
NOTE:
It may be necessary to jog the cylinders up and
down to remove the superstructure attachment
pins.
7.
It may be necessary to jog the cylinders up and down to
remove the superstructure attachment pins.
8.
Using the counterweight control panel (Figure 4-16),
fully lower counterweight removal cylinders. For more
information, see
Lowering the Counterweight Cylinders
9.
Remove section attachment pins (6, Figure 4-20) that
secure
removable
counterweight
to
the
top
counterweight.
10.
Secure counterweight to the carrier deck or previously
stowed counterweights with pins.
11.
Fully raise cylinders.
12.
Repeat steps 4 to 11 as necessary for the remaining
counterweight sections.
13.
Stow the pins as necessary in the counterweight
sections.
DANGER
Ensure that all mounting pins are properly installed and
locked during and after operating the counterweight
removal system.
Clear all personnel from the counterweight and
superstructure area when mounting or removing the
counterweight(s).
Fo
r
Reference
Only
Содержание NBT60XL
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