Table of Contents
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Installation Manual
HDC-33, HDC-44
3300 lb. & 4400 lb. Capacity Cantilever Liftgates
Last Change
Date
01/2022
Waltco Lift Corp.
Corporate Office United States
1777 Miller Parkway Streetsboro
OH 44241
P: 330.633.9191
F: 330.633.1418
01/2022 Rev 01
parts@waltco.com
Pages
. New HDC Liftgate released January 2022
All
www.HIAB.com
Description
800.411.5685
Phone:
800.411.5684
Fax:
GR02912
80117301
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Table of Contents
Related Manuals for WALTCO HDC-44
Summarization of Contents
Chapter 1: Safety Information
Introduction
Provides an overview of liftgate installation, operation, and maintenance, emphasizing safety and qualifications.
Liftgates with Tilt Function
Discusses specific safety considerations for liftgates equipped with a tilt function.
Signal Words
Explains the meaning of signal words like WARNING, CAUTION, and NOTICE used in safety messages.
Chapter 2: Liftgate Terminology
Explanation of Specification Tag
Details the components and information found on the liftgate's specification tag.
Location of Specification Tag
Indicates where the liftgate's specification tag can typically be found on the unit.
Chapter 3: Basic Mounting Requirements
Mounting Dimensions
Provides essential dimensions and measurements for correct liftgate mounting.
Calculating Minimum A Dimension
Explains how to calculate the minimum 'A' dimension for proper liftgate installation.
Frame Width
Specifies the maximum frame width compatible with the liftgate mounting.
Mounting Brackets
Details requirements and modifications for mounting brackets to ensure proper fit.
Determining Installation Dimensions
Guides users through determining the necessary installation dimensions using vehicle measurements.
Chapter 4: Liftgate Installation
Preparation of Body
Outlines necessary steps to prepare the vehicle body for liftgate installation.
Rear Sill Notching and Reinforcement
Instructions on notching and reinforcing the rear sill for proper liftgate mounting.
Construct Mounting Jig
Instructions for fabricating a mounting jig required for liftgate installation.
Reinforce Rear Sill Area
Provides steps to extend and reinforce the rear sill area of the chassis frame.
Mounting Jig Installation
Steps for locating, tack-welding, and aligning the mounting jig to the vehicle body.
Mount Liftgate to Mounting Jig
Procedures for disconnecting cylinders and removing shipping pins before mounting.
Lift Arm Assembly Check and Frame Positioning
Checking lift arm pivot, positioning mount frame, and securing lift arms.
Adjust Mount Frame and Position Mount Plates
Jacking mount frame to 'A' dimension and positioning/drilling mount plates.
Secure Mount Plates and Re-attach Cylinders
Bolting mount plates, re-attaching cylinders, and removing the mounting jig.
Accessing Control Card and Power Unit
Procedures to access the hydraulic unit and control card for installation or service.
Hydraulic System Oil Check and Battery Operation
Checking hydraulic oil levels and operating the liftgate without batteries.
Cable Lead-Through and Controller Connections
Installing cable lead-throughs and connecting control units to the control card.
Power Cable and Electrical Connections
Wiring power cables, optional in-cab switches, and installing compression terminals.
Battery Terminal and Circuit Breaker Installation
Installing terminals to the battery and connecting circuit breakers for the power system.
Structural Component Installation
Installing rear sill extension, platform positioning, and lift arms.
Tilt Cylinder and Gap Adjustments
Installing tilt cylinders, adjusting platform gap, and finalizing mount brackets.
Angle Sensor and Welding/Painting Precautions
Installing angle sensor and covering safety for welding, grinding, and painting.
Up Stops and Tilt Cylinder Adjustments
Installing up stops and adjusting tilt cylinder angles for proper operation.
Rubber Stops, Bumpers, and Door Applications
Installing rubber stops, 3-piece bumpers, and considerations for swing door applications.
Bridge Fabrication and Operational Checks
Fabricating, installing the bridge, and performing initial operation checks.
Platform Operation Modes
Instructions for raising, lowering, tilting, and folding the platform.
Chapter 5: Placement of Decals
Control and Warning Decal Placement
Placing safety, operation, capacity, and drive-over warning decals near controls.
Platform and Safety Tape Application
Applying decals to the platform underside and sides, and installing safety tape.
Label Placement for Shut-Off and Circuit Breaker
Positioning decals next to the liftgate shut-off switch and circuit breaker.
Chapter 6: Lubrication
Lubrication Instructions
Details on lubricating 12 grease fittings using a grease gun per the schedule.
Chapter 7: Final Inspection List
Final Inspection Checklist
A comprehensive checklist of items to verify before installation is complete.
Battery Kit Installations
Battery and Cable Routing Planning
Planning battery and pump locations and routing hydraulic and battery cables.
Battery Box and Pump Box Mounting
Locating and welding battery and pump boxes to the vehicle body crossmembers.
Battery Cable and Terminal Installation
Installing battery cables, terminal lugs, sockets, and circuit breakers for the kit.
Full-Door Seal Kit Installation
Installation of Full-Door Seal Kit
Instructions for installing side rubber seals, air foils, and double rails on vehicle corner posts.
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