National Crane NBT40-2 Series User manual

Operator Manual
National Crane NBT40-2 Series
10354
For Reference Only

The original language of this publication is English.
WARNING
California Proposition 65
Breathing diesel engine exhaust exposes you
to chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
• Always start and operate the engine in a
well-ventilated area.
• If in an enclosed area, vent the exhaust to
the outside.
• Do not modify or tamper with the exhaust
system.
• Do not idle the engine except as
necessary.
For more information, go to
www.P65warnings.ca.gov/diesel
Batteries, battery posts, terminals, and
related accessories can expose you to
chemicals, including lead and lead
compounds, which are known to the State of
California to cause cancer and birth defects or
other reproductive harm. Wash hands after
handling. For more information, go to
www.P65warnings.ca.gov
California Spark Arrestor
Operation of this equipment may create
sparks that can start fires around dry
vegetation. A spark arrestor may be required.
The owner/operator should contact local fire
agencies for laws or regulations relating to fire
prevention requirements.
For Reference Only

1565 Buchanan Trail East PO Box 21
Shady Grove, PA 17256-0021 T
717 597 8121 F 717 593 5999
www.manitowoc.com
CHANGE OF OWNERSHIP FORM
Constant improvements, engineering progress or manufacturing information may arise after this crane has
been in the field for several years that will make it necessary for us to contact future owners of this machine.
It is important to you that Manitowoc Crane have up-to-date records of the current owners of the crane
should the need arise for us to contact you. Manitowoc Crane is interested in safe efficient operation of its
cranes for their lifetime. Therefore, if you are the second, third, or subsequent owner of this crane, please fill
out the form below relating the new owner, model of crane and crane serial number information and e-mail
or send to the below address.
PREVIOUS COMPANY NAME:
CURRENT COMPANY NAME:
CONTACT NAME:
ADDRESS:
CITY/STATE: _POSTAL CODE:
TELEPHONE NUMBER:
EMAIL ADDRESS:
DATE PURCHASED CRANE MODEL _CRANE SERIAL NUMBER
Please e-mail to: [e-mail] or visit
https://www.manitowoc.com/support/change-ownership
For Reference Only

CHANGE OF OWNERSHIP REGISTRATION
Product Support strives to maintain up-to-date contact information for crane owners so that we
can readily communicate information about improvements and/or engineering developments for
cranes that have been in the field for several years.
Product Support is pleased to announce that we have developed a QR code to allow the customer
to register their crane remotely or re-register their crane if it was purchased used.
To register your crane scan the QR code below or visit https://www.manitowoc.com/warranty-
registration-form to register your crane.
For Reference Only

OPERATOR MANUAL
This manual has been prepared for and is considered part of the
NBT40-2 Series Cranes
This manual is divided into the following sections:
SECTION 1 INTRODUCTION
SECTION 2 SAFETY PRECAUTIONS
SECTION 3 CONTROLS AND OPERATING PROCEDURES
SECTION 4 SET-UP
SECTION 5 LUBRICATION GREASE PROCEDURE AND CHARTS
SECTION 6 MAINTENANCE CHECKLIST
SECTION 7 RATED CAPACITY LIMITER
NOTICE
The crane serial number is the only method your distributor or the factory
has of providing you with correct parts and service information.
The crane serial number is identified on the builder’s decal in the crane
cab (4, Appendix 1). Always furnish crane serial number when
ordering parts or communicating service problems with your distributor or
the factory.
© 2022 Grove U.S. L.L.C.
An untrained operator subjects himself and others to death or
serious injury. Do not operate this crane unless:
•You have been trained in the safe operation of this crane. National
Crane is not responsible for qualifying personnel
•You read, understand, and follow the safety and operating
recommendations contained in the crane manufacturer’s manuals and
load charts, your employer’s work rules, and applicable government
regulations.
•You are sure that all safety signs, guards, and other safety features are
in place and in proper condition.
•The Operator Manual and Load Chart are in the holder provided on
crane.
DANGER
!
Published 04-27-2022 Control # 704-01
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For Reference Only

THIS PAGE BLANK
For Reference Only

NATIONAL CRANE TOC-1
NBT40-2 SERIES OPERATOR MANUAL TABLE OF CONTENTS
1
SECTION 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Supplemental Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
New Owner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Basic Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
SECTION 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety Precautions
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Safety Alert Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Signal Words. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Accidents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Operator Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Operator Qualifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Operational Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Rated Capacity Limiter (RCL) Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Anti-Two-Blocking Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Working Area Limiter (If Equipped). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Equipment Stability/Structural Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Load Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Work Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Wind Forces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Wind Speeds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Lifting Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Multiple Crane Lifts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Lifting Multiple Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Tilt-Up Panel Lifting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Counterweight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Outrigger Lift Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Pile Driving and Extracting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Electrocution Hazard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Set-Up and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Electrocution Hazard Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Electrical Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Special Operating Conditions and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Grounding the Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Personnel Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Environmental Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Service and Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Hoist Rope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Synthetic Hoist Rope (If Supported) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Wire Rope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Sheaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Transporting the equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Travel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Work Practices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Personal Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Equipment Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
Job Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
Working. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32
For Reference Only

TOC-2
TABLE OF CONTENTS NBT40-2 SERIES OPERATOR MANUAL
Hand Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Jib . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Parking and Securing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
Shut-Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
Cold Weather Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
Temperature Effects on Hook Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
Temperature Effects on Hydraulic Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
Model Specific Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Overload Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Boom Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
Superstructure Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41
Carrier Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
SECTION 3 . . . . . . . . . . . . . . . . . . . . . . . . Controls and Operating Procedures
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Jump Starting Hazard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Charging the Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Crane Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Crane Software Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Crane Ignition and Control States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Truck Cab Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Truck Cab Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Power Take Off (PTO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Park Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Engine Speed Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Neutral Start/Safety Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Crane Cab Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Crane Cab Operator Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Crane Cab Left Armrest. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Outrigger Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Cab Outrigger Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Ground Station Outrigger Control Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Cab Outrigger Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Rigging Wireless Remote Control (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Outrigger Selection Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Emergency Stop Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Crane Level Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Ground Station Outrigger Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Crane Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Swing Brake Pedal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Swing Brake Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Swing Brake Control Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Horn Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
House Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Boom Telescope Pedal (Standard with Aux Hoist) . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Foot Throttle Pedal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
AM/FM/Bluetooth Radio and Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
RCL Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
RCL Override Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Emergency Stop Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
AC/Heater Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Crane Ignition Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
12V Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Diagnostic Connector (USB-B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
For Reference Only

NATIONAL CRANE TOC-3
NBT40-2 SERIES OPERATOR MANUAL TABLE OF CONTENTS
1
Crane Diagnostic Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Diagnostic Connector—Display USB-A Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
USB-A Power Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Level Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Engine Hi/Low Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Crane Function Power Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Remote Power Switch (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Work Light Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Skylight Wiper Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Windshield Wiper/Washer Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Air Conditioning/Heater Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Single Axis Controller (Boom Lift/Hoist Rope) (Optional) . . . . . . . . . . . . . . . . . . . . 3-16
Single Axis Controller (Swing/Boom Tele) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Dual Axis Controller (Boom Lift/Main Hoist) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Dual Axis Controller (Swing/Tele/Aux Hoist) (Optional) . . . . . . . . . . . . . . . . . . . . . 3-17
Seat Back Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Seat/Controls Assembly Slide Adjustment Lever . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Seat Slide Adjustment Lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Operator Seat Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Main Hoist Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Auxiliary Hoist Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Hoist Rotation Indicator (HRI) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Cab Tilt Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Adjustable Swing Speed Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Heater Cold Weather Fuel Mixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Heater Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Hydraulic Pump Suction Inlet Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Windshield Wiper Fluid Reservoir. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Equipment Familiarization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Crane Cab Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Equipment Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Cold Weather Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Crane Warm-up Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23
Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Transmission. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Hoist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Swing Drive and Turntable Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Axles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Hydraulic Oil System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Anti-two Block Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
RCL Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
Hoist System Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
Work Site Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
Before Leaving the Truck Cab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
Stowing and Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Unattended Crane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Before Making the Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Load Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Using the Load Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
Lifting the Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28
Shut Down and Preparation for Road Travel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28
Rigging Remote Control (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
Rigging Remote Control Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33
Crane Remote Control (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35
For Reference Only

TOC-4
TABLE OF CONTENTS NBT40-2 SERIES OPERATOR MANUAL
Crane Remote Control Battery Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Activating the Crane Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Camera System (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Wind Speed Indicator (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
SECTION 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Set-Up
Outrigger Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Proper Leveling of the Crane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Bubble Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Site Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Setting the Outriggers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Using the Hoist Jog Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Setting the Outriggers with the Rigging Remote Control . . . . . . . . . . . . . . . . . . . . . 4-3
Jib Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Deploying And Stowing The Jib . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
General Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Jib Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Deployment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Stowing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Jib Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Jib Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Jib Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Setting the Mast Sheave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Anti-Two Block (ATB) Weight Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Multi-part Line Reeving. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Using Multiple Part Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Possible Multi-Part Line Reeving Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Lifting the Rated Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Installing Rope on A Hoist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Wedge Sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Terminator Wedge Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Wedge Socket Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
Auxiliary Boom Nose (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Installing the Auxiliary Boom Nose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Installing the Anti-Two Block (ATB) on the Auxiliary Boom Nose . . . . . . . . . . . . . 4-22
Removing the Auxiliary Boom Nose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
Temporarily Moving the Auxiliary Boom Nose. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
SECTION 5 . . . . . . . . . . . . . . . . . . .Lubrication Grease Procedure and Charts
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Environmental Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Arctic Conditions Below -9°C (15°F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Chassis Grease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Open Gear Lubricant (LP-OGL). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Antifreeze/Coolant (for Cab Heater) (AFC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Anti-wear Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Hydraulic Oil (HYDO). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Standard Hydraulic Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Arctic Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Hydraulic Oil Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Lubrication Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Side and Bottom Boom Wear Pad Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Outrigger Beam Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Hoist Gearbox and Brake Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
For Reference Only

NATIONAL CRANE TOC-5
NBT40-2 SERIES OPERATOR MANUAL TABLE OF CONTENTS
1
Swing Gearbox Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Hydraulic Oil Reservoir Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Surface Protection for Cylinder Rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Wire Rope Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Carwell® Rust Inhibitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Protecting Cranes From Rusting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Cleaning Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Areas of Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
SECTION 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance Checklist
Crane Inspection And Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Special Boom Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Hoist Rope Inspection And Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Keeping Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Dynamic Shock Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Precautions and Recommendations During Inspection . . . . . . . . . . . . . . . . . . . . . . 6-4
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Wire Rope Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Care of Wire Rope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Replacement Rope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Crane Adjustments and Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Boom Extension Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Jib Jack Service and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Rust Prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Hydraulic System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Oil Cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Tire Load And Inflation Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Hydraulic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Air Conditioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Hoist System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Swing Gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Crane Operating Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Counterweights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Anemometer (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Camera (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
SECTION 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rated Capacity Limiter
RCL System Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
About the RCL Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
About the RCL and ATB Override Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
RCL Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
Step 1: Configuring a Personnel Platform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Step 2: Configuring the Jib Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Step 3: Configuring the Outriggers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Step 4: Configuring Hoist and Reeving. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Step 5: Confirming the Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Accessing Operating Mode Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
Activating the TARE Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
For Reference Only

TOC-6
TABLE OF CONTENTS NBT40-2 SERIES OPERATOR MANUAL
Overriding the RCL System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
Work Area Definition System (WADS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
Accessing the WADS Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
Setting the Slew Angle Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
Setting the Virtual Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
Setting the Boom Angle Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
Setting the Tip Height Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
Setting Radius Limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
Deleting All Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
Accessing the Tools Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
Setting Units of Measure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
Setting up the Hydraulic Filter Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
Setting RCL Screen Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
About Adjusting Controller Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
Accessing the System Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
Entering the System Configuration Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
Setting System Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
Calibrating RCL Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
About the Diagnostics Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
Accessing the Diagnostics Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
About Faults and Real-Time I/O Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20
About the Manitowoc Diagnostic Code Mobile Application . . . . . . . . . . . . . . . . . . 7-21
Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1
For Reference Only

NBT40-2 SERIES OPERATOR MANUAL INTRODUCTION
1
NATIONAL CRANE Published 04-27-2022 Control # 704-01 1-1
SECTION 1
INTRODUCTION
SECTION CONTENTS
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Supplemental Information . . . . . . . . . . . . . . . . . . . 1-1
New Owner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Basic Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . 1-1
GENERAL
This manual has been compiled to assist you in properly
operating and maintaining your Model NBT40-2 Series
National Crane (Figure 1-1). The NBT40-2 Series includes
crane models NBT40-2, NTC40-2, NBT45-2, and NTC45-2.
Before placing the crane in service, all operators and
persons working around the crane must thoroughly read and
understand the contents of this manual pertaining to Safety,
Operation and Maintenance. Before moving a vehicle
equipped with the crane, information relating to transporting
the vehicle must be read and observed.
This manual must be retained with the machine for use by
subsequent operating personnel.
For detailed information concerning the operation and
maintenance of the RCL system installed on the crane, see
Section 7- Rated Capacity Limiter in this manual.
Manufacturers of rated capacity limiters may refer to them in
their manuals as a load moment indicator (LMI) or a
hydraulic capacity alert system (HCAS). National Crane
refers to these systems as a rated capacity limiter (RCL)
throughout its Operator and Service Manuals.
Information in this manual does not replace federal, state or
local regulations, safety codes or insurance requirements.
The NBT40-2 Series cranes have been designed for
maximum performance with minimum maintenance. With
proper care, years of trouble-free service can be expected.
National Crane and our Distributor Network want to ensure
your satisfaction with our products and customer support.
Your local distributor is the best equipped and most
knowledgeable to assist you for parts, service, and warranty
issues. They have the facilities, parts, factory trained
personnel, and the information to assist you in a timely
manner. We request that you first contact them for
assistance. If you feel you need factory assistance, please
ask the distributor’s service management to coordinate the
contact on your behalf.
Supplemental Information
Supplemental Information regarding Safety & Operation,
Specifications, Service & Maintenance, Installation, and
parts for options such as remote controls, augers, varying
control configurations, personnel platforms, grapples, etc.
are included in separate manuals.
Whenever a question arises regarding your National Crane
product or this publication, please consult your National
Crane Distributor for the latest information. Your National
Crane Distributor is equipped with the proper tools,
necessary parts, and trained personnel to properly maintain
and service your crane.
A Safety Compact Disc or a USB flash drive which includes
sections on Operation, Service and a Safety Video for
National Crane operators and owners is supplied when the
equipment is purchased new. Additional copies are available
from your local distributor.
New Owner
If you are the new owner of a National Crane, please register
it with National Product Support so we have the ability to
contact you if the need arises. Go to: https://
www.manitowoccranes.com/en/services/crane-care/
service-and-tech-support/Change-of-Ownership-Form
Basic Nomenclature
The nomenclature used to describe parts of a National Crane
are described in Figure 1-1. This nomenclature is used
throughout this manual.
For Reference Only

INTRODUCTION NBT40-2 SERIES OPERATOR MANUAL
1-2 Published 04-27-2022 Control # 704-01
10357
Item Component
1 Cab Crane Controls (Inside Cab)
2Cab
3 RCL, Display Screen (Inside Cab)
4 Rated Capacity Limiter (RCL) Reel
5Boom
6BoomNose
7BoomRest
8 Lift Cylinder
9a Main Hoist (rear)
9b Auxiliary Hoist (front)
10 Outrigger Beam
11 Outrigger Box
12 Telescoping Jib
13 Hook Block
14 Superstructure Bearing
15 Hoist Rope
16 Ground Outrigger Control
17 Hydraulic Pump
18 Cab Outrigger Control (Inside Cab)
19 Cab Seat
20 Access Ladder
21 Hydraulic Tank
22 Outrigger Stabilizer
23 Counterweight
24 Cab Controllers
25 Single Front Outrigger (SFO) (Optional)
Item Component
24
2
12
1
22
FIGURE 1-1
3
17
7
6
5
8
16
4
9a
10355
10
14
19
20
21
10356
10358
23
20
20
18
9b
11
13
11
25
15
For Reference Only

NBT40-2 SERIES OPERATOR MANUAL INTRODUCTION
1
NATIONAL CRANE Published 04-27-2022 Control # 704-01 1-3
NOTICE TO OWNER/USER
IMMEDIATELY report all accidents, malfunctions, and equipment damages to your
local National Crane distributor. Following any accident or damage to equipment,
the local National Crane distributor must be immediately advised of the incident and
consulted on necessary inspections and repairs. Should the distributor not be
immediately available, contact should be made directly with National Product
Support. The crane must not be returned to service until it is thoroughly inspected
for any evidence of damage. All damaged parts must be repaired or replaced as
authorized by your local National Crane distributor or National Product Support.
For Reference Only

INTRODUCTION NBT40-2 SERIES OPERATOR MANUAL
1-4 Published 04-27-2022 Control # 704-01
THIS PAGE BLANK
For Reference Only

NATIONAL CRANE Published 04-27-2022 Control # 704-01 2-1
NBT40-2 SERIES OPERATOR MANUAL SAFETY PRECAUTIONS
2
SECTION 2
SAFETY PRECAUTIONS
SECTION CONTENTS
Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Safety Alert Symbol . . . . . . . . . . . . . . . . . . . . . . . 2-2
Signal Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Accidents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Operator Information . . . . . . . . . . . . . . . . . . . . . . . 2-2
Operator Qualifications . . . . . . . . . . . . . . . . . . . . . 2-3
Operational Aids. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Rated Capacity Limiter (RCL) Systems . . . . . . . . 2-4
Anti-Two-Blocking Device . . . . . . . . . . . . . . . . . . . 2-5
Working Area Limiter (If Equipped). . . . . . . . . . . . 2-5
Equipment Stability/Structural Strength . . . . . . . 2-5
Load Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Work Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Wind Forces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Wind Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Lifting Operations . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Multiple Lifts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Tilt-Up Panel Lifting . . . . . . . . . . . . . . . . . . . . . . 2-16
Pile Driving and Extracting . . . . . . . . . . . . . . . . . 2-17
Electrocution Hazard . . . . . . . . . . . . . . . . . . . . . . 2-17
Set-Up and Operation . . . . . . . . . . . . . . . . . . . . . 2-18
Electrocution Hazard Devices. . . . . . . . . . . . . . . 2-19
Electrical Contact . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Special Operating Conditions and Equipment . . 2-20
Grounding the Equipment. . . . . . . . . . . . . . . . . . 2-20
Personnel Handling . . . . . . . . . . . . . . . . . . . . . . . 2-20
Environmental Protection . . . . . . . . . . . . . . . . . . 2-22
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Service and Repairs . . . . . . . . . . . . . . . . . . . . . . 2-22
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Hoist Rope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Synthetic Hoist Rope (If Supported) . . . . . . . . . . 2-24
Wire Rope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Sheaves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Transporting the equipment. . . . . . . . . . . . . . . . . 2-26
Travel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Work Practices. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Personal Considerations . . . . . . . . . . . . . . . . . . . 2-27
Equipment Access . . . . . . . . . . . . . . . . . . . . . . . . 2-27
Job Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Working . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Hand Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Jib . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
Parking and Securing . . . . . . . . . . . . . . . . . . . . . . 2-33
Shut-Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Cold Weather Operation . . . . . . . . . . . . . . . . . . . . 2-33
Temperature Effects on Hook Blocks . . . . . . . . . 2-33
Temperature Effects on Hydraulic Cylinders . . . 2-33
Model Specific Information. . . . . . . . . . . . . . . . . . 2-35
Overload Inspection . . . . . . . . . . . . . . . . . . . . . . . 2-35
Boom Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
Superstructure Inspection . . . . . . . . . . . . . . . . . . 2-38
Carrier Inspection . . . . . . . . . . . . . . . . . . . . . . . . 2-40
SAFETY MESSAGES
General
The importance of safe operation and maintenance cannot
be overemphasized. Carelessness or neglect on the part of
operators, job supervisors and planners, rigging personnel,
and job site workers can result in their death or serious injury
and costly damage to the equipment and property.
To alert personnel to hazardous operating practices and
maintenance procedures, safety messages are used
throughout the manual. Each safety message contains a
safety alert symbol and a signal word to identify the hazard’s
degree of seriousness.
For Reference Only

2-2 Published 04-27-2022 Control # 704-01
SAFETY PRECAUTIONS NBT40-2 SERIES OPERATOR MANUAL
Safety Alert Symbol
Signal Words
NOTE: Emphasizes operation or maintenance
procedures.
GENERAL
It is impossible to compile a list of safety precautions
covering all situations. However, there are basic principles
that must be followed during your daily routine. Safety is
your primary responsibility, since any piece of equipment
is only as safe as the person at the controls.
Read and follow the information located in Model Specific
Information near the end of this section.
This information has been provided to assist in promoting a
safe working atmosphere for yourself and those around you.
It is not meant to cover every conceivable circumstance
which could arise. It is intended to present basic safety
precautions that should be followed in daily operation. The
decals shown in this section are examples. Consult the Parts
Manual for specific decals installed on the equipment.
Because you are the only part of the equipment that can
think and reason, your responsibility is not lessened by the
addition of operational aids or warning devices. Indeed, you
must guard against acquiring a false sense of security when
using them. They are there to assist, not direct the operation.
Operational aids or warning devices can be mechanical,
electrical, electronic, or a combination thereof. They are
subject to failure or misuse and should not be relied upon in
place of good operating practices.
You are the only one who can be relied upon to assure the
safety of yourself and those around you. Be a professional
and follow the rules of safety.
Remember, failure to follow just one safety precaution could
cause an accident that results in death or serious injury to
personnel or damage to equipment. You are responsible for
the safety of yourself and those around you.
ACCIDENTS
Following any accident or damage to equipment, the
National Crane distributor must be immediately advised of
the incident and consulted on necessary inspections and
repairs. Should the distributor not be immediately available,
contact should be made directly with Manitowoc Product
Safety at the address below. The equipment must not be
returned to service until it is thoroughly inspected for any
evidence of damage. All damaged parts must be repaired or
replaced as authorized by your National Crane distributor
and/or National Product Support.
If this equipment becomes involved in a property damage
and/or personal injury accident, immediately contact your
National Crane distributor. If the distributor is unknown and/
or cannot be reached, contact Product Safety at:
Grove U.S. L.L.C
1565 East Buchanan Trail
Shady Grove, PA 17256-0021
Phone: [phone] (888-PSR.DEPT)
Fax: [phone]
E-mail: [email protected]
OPERATOR INFORMATION
You must read and understand this Operator Manual and
the Load Chart before operating your new equipment. You
must also view and understand the supplied safety video.
This manual and Load Chart must be readily available to the
operator at all times and must remain in the cab (if equipped)
or operator’s station while the equipment is in use.
The Operator Manual supplied with and considered part of
your equipment must be read and completely understood by
This safety alert symbol means ATTENTION!
Become alert - your safety is involved! Obey all safety
messages that follow this symbol to avoid possible death
or injury.
DANGER
Identifies hazards that will result in death or serious injury
if the message is ignored.
WARNING
Identifies hazards that may result in death or serious
injury if the message is ignored.
CAUTION
Identifies hazards that could result in minor or moderate
injury if the message is ignored.
CAUTION
Without the safety alert symbol, identifies hazards that
could result in property damage if the message is ignored.
For Reference Only

NATIONAL CRANE Published 04-27-2022 Control # 704-01 2-3
NBT40-2 SERIES OPERATOR MANUAL SAFETY PRECAUTIONS
2
each person responsible for assembly, disassembly,
operation and maintenance of the equipment.
No personnel shall be allowed to climb onto the equipment or
enter the equipment cab or operator’s station unless
performance of their duties require them to do so, and then
only with knowledge of the operator or other qualified
person.
Allow No One other than the operator to be on the
equipment while the equipment is operating or moving,
unless they are seated in a two-man cab.
Keep clear of moving outriggers to avoid crushing hazards.
Contact with moving components could result in death or
serious injury.
Do not remove the Load Chart, this Operator Manual, or
any decal from this equipment.
Inspect the equipment every day (before the start of each
shift). Make sure that routine maintenance and lubrication
are being dutifully performed. Don’t operate damaged or
poorly maintained equipment. You risk lives when operating
faulty machinery - including your own.
If adjustments or repairs are necessary, the operator shall
notify the next operator and personnel responsible for the
maintenance and repair of the equipment.
OPERATOR QUALIFICATIONS
A qualified person is defined as one who by reason of
knowledge, training and experience is thoroughly familiar
with equipment operations and the hazards involved. Such a
person shall meet the operator qualifications specified in
Occupational Safety and Health Administration (OSHA)
Regulations (United States Federal Law), in ASME B30.5
American National Standard, or in any other applicable
federal, state or local laws.
Make sure that all personnel working around the equipment
are thoroughly familiar with safe operating practices. You
must be thoroughly familiar with the location and content of
all decals on the equipment. Decals provide important
instructions and warnings and must be read prior to any
operational or maintenance function.
Refer to the Parts Manual for this equipment for the locations
of all safety decals.
You must be familiar with the regulations and standards
governing this equipment and its operation. Work practice
requirements may vary slightly between government
regulations, industry standards, and employer policies so a
thorough knowledge of all such relevant work rules is
necessary.
An untrained operator subjects himself and others to death
or serious injury.
You must not operate this equipment unless:
•You have been trained in the safe operation of
this equipment.
•You read, understand, and follow the safety and
operating recommendations contained in the
manufacturer’s manuals, your employer’s work rules,
and applicable government regulations.
•You are sure the equipment has been inspected and
maintained in accordance with the manufacturer’s
manuals and is operating properly.
•You are sure that all safety decals, guards, and other
safety features are in place and in proper condition.
Do not attempt to operate the equipment unless you are
trained and thoroughly familiar with all operational functions.
Controls and design may vary from equipment to equipment;
therefore, it is important that you have specific training on the
particular equipment you will be operating.
8819
Example decal. For
reference only.
8788
Example decal. For
reference only.
For Reference Only

2-4 Published 04-27-2022 Control # 704-01
SAFETY PRECAUTIONS NBT40-2 SERIES OPERATOR MANUAL
Training is ESSENTIAL for proper equipment operation.
Never jeopardize your own well-being or that of others by
attempting to operate equipment on which you have not
been trained.
You must be mentally and physically fit to operate the
equipment. Never attempt to operate equipment while under
the influence of medication, narcotics, or alcohol. Any type of
drug could impair physical, visual and mental reactions, and
capabilities.
As operator of this equipment, you are granted the authority
to stop and refuse to lift loads until safety is assured.
OPERATIONAL AIDS
Operational aids are accessories that provide information to
facilitate operation of equipment or that take control of
particular functions without action of the operator when a
limiting condition is sensed, as stated in the latest revision of
the ASME B30.5, and ASME B30.8 standards. Examples of
such devices include, but are not limited to, the following:
anti-two-block device, rated capacity indicator, rated capacity
limiter, boom angle or radius indicator, boom length indicator,
equipment level indicator, hoist drum rotation indicator, load
indicator, and wind speed indicator.
National Crane remains committed to providing reliable
products that enable users and operators to safely lift and
position loads. National Crane has been an industry leader in
the incorporation of operational aids into the design of its
equipment. Federal law requires that equipment be properly
maintained and kept in good working condition. The manuals
that National Crane provides that are specific for each
equipment and the manufacturer’s manuals for the
operational aids shall be followed. If an operational aid
should fail to work properly, the equipment user or owner
must assure that repair or recalibration is accomplished as
soon as is reasonably possible. If immediate repair or
recalibration of an operational aid is not possible and there
are exceptional circumstances which justify continued short-
term use of the equipment when operational aids are
inoperative or malfunctioning, the following requirements
shall apply for continued use or shutdown of the equipment:
•Steps shall be taken to schedule repairs and
recalibration immediately. The operational aids shall be
put back into service as soon as replacement parts, if
required, are available and the repairs and recalibration
can be carried out. Every reasonable effort must be
made to expedite repairs and recalibration.
•When a Load Indicator, Rated Capacity Indicator, or
Rated Capacity Limiter is inoperative or malfunctioning,
the designated person responsible for supervising the
lifting operations shall establish procedures for
determining load weights and shall ascertain that the
weight of the load does not exceed the equipment
ratings at the radius where the load is to be handled.
•When a Boom Angle or Radius Indicator is inoperative
or malfunctioning, the radius or boom angle shall be
determined by measurement.
•When an Anti-Two-Blocking Device, Two-Blocking
Damage Prevention Device or Two-Block Warning
Device is inoperative or malfunctioning, the designated
person responsible for supervising the lifting operations
shall establish procedures, such as assigning an
additional signal person to furnish equivalent protection.
This does not apply when lifting personnel in load-line
supported personnel platforms. Personnel shall not be
lifted when anti-two-block devices are not functioning
properly.
•When a Boom Length Indicator is inoperative or
malfunctioning, the designated person responsible for
supervising the lifting operations shall establish the
boom lengths at which the lift will be made by actual
measurements or marking on the boom.
•When a Level Indicator is inoperative or malfunctioning,
other means shall be used to level the equipment.
Rated Capacity Limiter (RCL) Systems
Your equipment is equipped with an RCL system which is
intended to aid the operator. An RCL is a device that
automatically monitors radius, load weight, and load rating
and prevents movements of the equipment, which would
result in an overload condition.
Test daily for proper operation. Never interfere with the
proper functioning of operational aids or warning devices.
Under no condition should it be relied upon to replace the
use of Load Charts and operating instructions. Sole reliance
upon these electronic aids in place of good operating
practices can cause an accident.
Know the weight of all loads and always check the capacity
of the equipment as shown on the Load Chart before making
any lifts.
NEVER exceed the rated capacity shown on the Load Chart.
Always check the Load Chart to make sure that the load to
be lifted at the desired radius is within the rated capacity of
the equipment.
For detailed information concerning the operation and
maintenance of the RCL system installed on the equipment,
see the appropriate section later in this manual, or the RCL
manufacturer’s manual supplied with the equipment.
Manufacturers of rated capacity limiters may refer to them in
their manuals as a load moment indicator (LMI), a hydraulic
capacity alert system (HCAS), a safe load indicator (SLI) or
an EKS5; National Crane refers to these systems as a rated
capacity limiter (RCL) throughout its Operator and Service
manuals.
For Reference Only