Manitowoc National Crane NBT50 Series, Руководство оператора

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SET-UP OPERATOR MANUAL NBT50
4-20
Published 03-23-2018 Control # 243-14
above the counterweight stowage area on the carrier
deck.
Ensure vertical alignment of counterweight to
counterweight mounting lugs on the carrier deck or top
counterweight section to bottom counterweight section
by leaving the cab and performing a visual inspection. If
necessary, return to cab and rotate superstructure until
alignment is achieved.
5. Using Counterweight Switch Panel (Figure 4-13) located
on either side of the turntable, slightly raise the
Counterweight Removal Cylinders by doing the
following:
NOTE: The Counterweight Switch Panels will only function
if the Crane Function Power Switch is turned off, an
armrest is in the up position, or there is no one
sitting in the crane cab operator’s seat. A green
LED (6, Figure 4-13) on the left side of the
Counterweight Switch Panel will illuminate to
indicate the panel is operational.
If a Counterweight Removal Cylinder Raise or
Lower Button (4, 5, Figure 4-13) is pressed without
first pressing and holding a Power Button (1,
Figure 4-13), a red LED above that button will
flash.
a. Press and hold a Power Button.
b. Press and hold the left and right Counterweight
Removal Cylinder Raise Buttons.
c. Release the left and right Counterweight Removal
Cylinder Raise Buttons when the cylinders are fully
raised.
6. Remove pins (4, Figure 4-12) that secure Removable
Counterweight to superstructure.
NOTE: It may be necessary to jog the cylinders up and
down to remove pins.
7. Using Counterweight Switch Panel, fully lower
Counterweight Removal Cylinders by doing the
following:
a. Press and hold a Power Button.
b. Press and hold the left and right Counterweight
Removal Cylinder Lower Buttons.
c. Release the left and right Counterweight Removal
Cylinder Lower Buttons when counterweight is in
the fully lowered position.
If counterweight does not vertically align with
mounting lugs or bottom counterweight section,
raise cylinders, return to cab, and then swing
superstructure until alignment is achieved.
8. Secure counterweight to carrier deck with pins (7,
Figure 4-12).
If crane superstructure is loaded with only top
counterweight section and bottom section is stowed on
carrier deck, secure top section to bottom section with
pins (6, Figure 4-12).
9. Remove pins (5, Figure 4-12) that secure Removable
Counterweight to cylinders.
10. Fully raise cylinders, then stow pins in top counterweight
section.