EasyManua.ls Logo

Manitowoc National Crane NC1400H - User Manual

Manitowoc National Crane NC1400H
208 pages
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Loading...
Supplement to Service Manual
Boom Cable Tensioning
© 2017 Manitowoc
Published 03-23-2017, Control# 641-01
Reference Only

Table of Contents

Questions and Answers

  • J
    Joseph WilliamsAug 4, 2025
    Why won't my Manitowoc National Crane NC1400H lift the load?
    • R
      Richard PetersonAug 4, 2025
      If your Manitowoc Construction Equipment jack won't lift the load, it could be due to a couple of reasons. First, check if there's enough oil in the system. If not, add oil to the reservoir tank through the oil filler hole. Another possible cause is that the release valve isn't fully closed. Make sure to turn the handle clockwise tightly to close it.
  • B
    Brendan ParkerAug 8, 2025
    How to improve lifting on Manitowoc National Crane NC1400H Construction Equipment?
    • O
      oburnsAug 9, 2025
      Poor lifting in your Manitowoc Construction Equipment can stem from a couple of issues. One possibility is dirty oil, which requires a hydraulic oil change. Another cause might be air trapped in the hydraulic system, so you should purge the air from the system.
  • K
    Kevin GoodAug 13, 2025
    What to do if Manitowoc National Crane NC1400H Construction Equipment will lift load only part way?
    • E
      Erika CampbellAug 13, 2025
      If your Manitowoc Construction Equipment jack will lift the load only part way, it's likely due to a low oil level. Add oil to the reservoir tank through the oil filler hole to resolve this.
  • E
    erica37Aug 19, 2025
    What to do if Manitowoc National Crane NC1400H Construction Equipment jack will not lower?
    • S
      Stephanie McknightAug 19, 2025
      If your Manitowoc Construction Equipment jack will not lower, the release valve is likely stuck due to dirt or foreign matter. To fix this, transfer the load, then replace the dirty oil and flush the oil reservoir with kerosene.
  • L
    Lisa MannAug 23, 2025
    Why is there poor pumping action in my Manitowoc National Crane NC1400H Construction Equipment?
    • K
      Kevin GonzalezAug 25, 2025
      If your Manitowoc Construction Equipment exhibits poor pumping action, it's likely that the oil seal for the pump unit is worn out or defective. The suggested solution is to replace the jack.
  • M
    Mr. Jose AdkinsAug 28, 2025
    What to do if Manitowoc National Crane NC1400H will lift load but will not hold?
    • E
      elizabeth38Aug 28, 2025
      If your Manitowoc Construction Equipment will lift a load but won't hold it, it could be due to a leaking valve (suction, delivery, or release valve) or worn-out/defective packings. The suggested solution is to replace the jack.

Summary

Boom Cable Tensioning Procedures

Tensioning Setup Procedure

Detailed steps for preparing and performing boom cable tensioning.

Five Section Boom Cable Tensioning

Procedure for tensioning cables in a five-section boom.

Four Section Boom Cable Tensioning

Procedure for tensioning cables in a four-section boom.

Three Section Boom Cable Tensioning

Procedure for tensioning cables in a three-section boom.

Cable Retention

Information on hardware and procedures for retaining boom cables.

Torque Values for Second Nut

Torque specifications for cable retention nuts.

Crane Warm-up Procedures

Engine Warm-up Procedures

Engine warm-up procedures for various temperature ranges.

Hoist Warm-up Procedures

Warm-up procedures for the hoist function.

Swing Drive and Turntable Bearing Warm-up Procedures

Warm-up procedures for swing drive and turntable bearing.

Hydraulic Oil System Warm-up Procedures

Warm-up procedures for the hydraulic oil system.

SECTION 1 SAFETY INFORMATION

Safety Messages

Information on safety messages and their components.

Signal Words

Definitions of signal words used for hazard severity.

General Safety Principles

Basic principles for safe operation and maintenance.

Accidents

Procedures to follow after an accident or damage to equipment.

Operator Qualifications

Definition of a qualified person for crane operations.

Operational Aids

Information on accessories that aid crane operation and safety.

Rated Capacity Limiter (RCL) Systems

Explanation of the RCL system's function and importance.

Anti-Two-Blocking Device

Information on the anti-two-block system and its function.

Crane Stability;Structural Strength

Importance of ensuring crane stability and structural integrity.

Load Charts

Explanation of load charts and their use in determining capacities.

Lifting Operations

Procedures and precautions for safe lifting operations.

Electrocution Hazard

Hazards and regulations regarding operating near power lines.

Personnel Handling

Regulations and procedures for lifting personnel.

Maintenance

General requirements for crane maintenance and inspection.

Wire Rope

Information on wire rope selection, inspection, and care.

SECTION 2 OPERATING CONTROLS

Truck Cab Controls

Controls located within the truck cab.

Power Take-Off (PTO)

Procedures for engaging and disengaging the PTO.

Crane Controls

Description of the main crane control functions.

Control Functions

Explanation of various crane control lever functions.

Rated Capacity Limiter (RCL)

General information about the Rated Capacity Limiter (RCL).

Operating Procedures

General procedures for operating the crane.

Equipment Checks

Essential checks to perform before operating the crane.

RCL Inspection Procedure

Procedure for inspecting the RCL system connections.

Crane Set Up

Procedures for setting up the crane outriggers and stabilizers.

Load Charts

Explanation of load charts and their use in determining capacities.

SECTION 3 MAINTENANCE

Inspection and Maintenance

Overview of inspection and maintenance requirements for optimal operation.

Daily Inspections

Items to visually inspect daily before using the unit.

Weekly Inspections

Items to visually inspect weekly.

Monthly Inspections

Inspections to be performed monthly by maintenance personnel.

Periodic Inspections

Detailed inspection conducted at least every three months.

Wire Rope Replacement

Criteria and reasons for replacing wire rope.

Care of Wire Rope

Guidelines for handling wire rope to prevent damage and ensure longevity.

Adjustments and Repairs

Precautions and procedures for adjustments and repairs.

SECTION 4 LUBRICATION

General Lubrication

Importance of lubrication for crane life and procedures.

Hydraulic Oil

Information on selecting proper hydraulic oil.

Hydraulic Oil Inspection

Procedures for inspecting hydraulic oil condition and filters.

Lubrication Points

Table listing lubrication points, recommended lubricants, and frequency.

Boom Lubrication

Information and procedures for greasing boom sections.

Wire Rope Lubrication

Procedures and techniques for lubricating wire rope.

Carwell© Rust Inhibitor

How the Carwell T32-CP-90 product helps prevent corrosion.

SECTION 5 SERVICE

Service and Repair

General procedures for service and repair of crane components.

Hydraulic Systems

Service procedures for hydraulic systems and components.

Fasteners and Torque Values

Critical torque values for proper assembly of components.

Trouble Diagnosis

Chart listing common malfunctions, causes, and corrective actions.

Anti-Two-Block Wire With External Reel

Maintenance and operation of the anti-two-block wire system.

Single Stage Cylinder Disassembly And Repair

Step-by-step instructions for disassembling and repairing single stage cylinders.

Four Section Boom Service

Service procedures specific to the four-section boom.

Five Section Boom Service

Service procedures specific to the five-section boom.

JIB Installation and Adjustment

Procedures for installing and adjusting the jib assembly.

Servicing the Main Control Valve

Procedures for servicing the main control valve assembly.

Adjusting the Relief Valve Pressure Settings

How to adjust relief valve pressure settings for proper operation.

Outrigger Cable Tensioning

Procedure for tensioning outrigger cables.

SECTION 7 INSTALLATION

Minimum Truck Requirements

Minimum truck specifications required for crane mounting.

Truck Frame Strength

Requirements for truck frame rigidity and strength for crane mounting.

Section Modulus Tables

Tables for determining section modulus of truck frames and reinforcements.

Truck Preparation

Pre-installation steps for preparing the truck.

Crane Installation

Steps for determining installation position and mounting the crane.

Pin Bearing Inspection and Installation Procedure

Critical component inspection and installation procedures.

Stability Check

Procedure for performing a live load stability test on the crane.

Counterweighting

Information on counterweight requirements and placement.

Anti-two-block Load Moment Indicator Installation and Function Verification

Steps for installing and verifying the function of the LMI system.

Initial Crane Run In Procedure

Procedure for initial crane operation and testing after installation.

Manitowoc National Crane NC1400H Specifications

General IconGeneral
BrandManitowoc
ModelNational Crane NC1400H
CategoryConstruction Equipment
LanguageEnglish

Related product manuals