Manitowoc National Crane NBT40 Series User Manual

National Crane Published 4-23-2018 Control # 239-11 3-17
3
NBT40 SERIES OPERATOR MANUAL OPERATING CONTROLS & PROCEDURES
Stowing and Parking
When parking, the crane should be left in the smallest, most
stable, valid operational configuration that the job site
practically allows, do the following:
1. Park the crane on a stable surface.
2. Remove the load from the hook.
3. Stow the swingaway boom extension, if erected.
4. Fully retract the boom and position it in the normal travel
position, then perform the following and proceed to
Step 6:
a. Engage the swing brake and/or swing lock pin.
b. Retract all jack cylinders and outrigger beams.
5. If it is not practical to fully retract the boom and place it in
the travel position, then perform the following and
proceed to Step 6:
a. Make the crane as stable as possible, including,
boom angle, superstructure orientation, jib angle,
etc. In high winds, the boom and jibs should be
lowered or secured.
b. Engage the swing brake and/or swing lock pin.
6. Apply the parking brake.
7. Put all operating controls in the neutral position.
8. Position the Crane Function switch to OFF.
9. Shut down the engine following the proper procedures
specified in this manual and the applicable engine
manual.
10. Remove the keys.
11. Disconnect batteries, if machine will be inactive for over
24 hours.
12. Close and lock all windows, covers, and doors.
Unattended Crane
The configuration in which the crane should be left while
unattended shall be determined by a qualified, designated
individual familiar with the job site, configuration, conditions,
and limitations.
Before Making the Lift
• Set the outriggers as described in the Crane Set-up
section in this manual.
• Prior to any fully retracted outrigger (0% extended)
operation, extend jack cylinders with outriggers fully
retracted and level crane. Engage swing brake and raise
boom out of boom rest until the minimum boom angle for
indicated boom length with no load is exceeded. DO
NOT release swing brake with boom below minimum
indicated boom angle.
DANGER
Truck must be in neutral when starting engine from crane
cab to avoid sudden potential movement of truck.
WARNING
Tipping Hazard!
Never park the crane near holes, or on rocky or extremely
soft surfaces. This may cause the crane to overturn.
Failure to comply with these instructions may cause death
or serious injury.
!
CAUTION
To avoid possible engine fault codes and undesirable
operation, ensure the keyswitch has been off 2 minutes
before disconnecting batteries.
WARNING
Tipping Hazard!
Changing weather conditions including but not limited to:
wind, ice accumulation, precipitation, flooding, lightning,
etc. should be considered when determining the location
and configuration of a crane when it is to be left
unattended.
Failure to comply with these instructions may cause death
or serious injury.

Manitowoc National Crane NBT40 Series Specifications

General

Brand	Manitowoc
Model	National Crane NBT40 Series
Category	Construction Equipment
Language	English