Manitowoc National Crane NBT30H-2 User Manual

National Crane Published 03-18-2019 Control # 582-04 3-3
NBT30H-2 OPERATOR MANUAL CONTROLS AND OPERATING PROCEDURES
3
Park Brake
The truck parking brake must be firmly set before leaving cab
to begin crane operation. If the ground surface is icy, slick, or
sloped, wheel chocks may be required to help immobilize the
truck.
Engine Speed Governor
Some diesel engines are equipped with a variable speed
governor which overrides the Engine Speed Governor. If
equipped, two knobs in the cab select between crane
operation and normal driving operation.
Neutral Start/Safety Switch
The truck must be equipped with a Neutral/Start Safety
Switch on the truck transmission. Check occasionally to
ensure that the switch is working correctly and repair if it is
not.
CRANE CONTROLS
The crane is equipped with control stations on each side of
the main frame. Symbols on the control knobs indicate the
direction to actuate the controls for the various crane
functions. Each station provides control of boom rotation,
boom elevation, boom extension, hoist, engine foot throttle,
engine emergency stop switch, and horn switch. All control
handles are positioned in the same order at both left and
right control stations. Outrigger controls are pendant
controlled and accessible from both sides.
Swing Speed Adjustment
The Swing Speed Adjustment is located on swing drive
motor inside of turntable turret. Turn knob IN to increase
maximum swing speed. Turn knob OUT to decrease
maximum swing speed.
Emergency Stop Switch
Operate the Emergency Stop Switch to kill the truck engine
under emergency conditions. Switch must be reset to the
“ON” position to operate truck from cab.
Anti-Two-Block Warning
Indicator light illuminates and an audible alarm sounds when
a two-block or extension overload condition is detected.
When the anti-two-block system is activated, the Boom
Telescope, Boom Down and Hoist Up function will cease
operation. To restore normal functioning, the Boom Up
Function, Hoist Down function or Boom Retract function
must be operated until the loadline block allows the anti-two-
block sensing weight at the sheave case to hang freely.
Boom Angle Indicator
Located on either side of the base boom section and used to
determine main boom angle with respect to horizontal. For
reference only.
Boom Length Indicator
Located on either side of the second boom section. The
letters on the intermediate boom lengths correspond to the
letters on the load chart. The length indicators are used to
define boom length and with the load chart and load radius
are used to determine the maximum loads that may be safely
lifted. Actual radius must be measured from the centerline of
rotation.

Manitowoc National Crane NBT30H-2 Specifications

General

Brand	Manitowoc
Model	National Crane NBT30H-2
Category	Construction Equipment
Language	English