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Manuals
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Mec Manuals
Lifting Systems
3772ES HD
Service and parts manual
Mec 3772ES HD Service And Parts Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Introduction
General Safety Tips
Electrical System
Hydraulic System
Total System
Primary Machine Components
Primary Machine Components: Compartments
Primary Machine Components Locator
Specifications: ANSI Models
Specifications: CE Models
Lubrication
Section 1
Hydraulics
Hydraulic Fluid
Hydraulic System Components
Wheel Drive
Parking Brake and Towing Circuit
Emergency Systems and Procedures
Steering Circuit
Platform Lift Circuit
Optional Outriggers
Cylinder Repair
Hydraulic Manifold
Section 2
Electrical System
Electrical System - General
Diagnostic LED
Battery Charge Indicator
Master Disconnect Switch
Deutsch Connectors
Batteries
Battery Replacement
Battery Charger
Controls
Lower Controls
Upper Controls
Alarms and Switches
Limit Switch
Continuity Checks
Motor Controller
Section 3
Mechanical Components
Torque Specifications
Base / Undercarriage
Hoses and Cables
Raising the Machine
Tires/Wheels
Changing Tires/Wheels
Drive Motors
Front Drive Motors
Rear Drive Motor with Brakes
Steer Cylinder
Platform Removal
Lift Cylinder Removal and Installation
Scissor Beam Assembly
Outrigger Function
Section 4
Troubleshooting
General Troubleshooting Tips
Electrical System Troubleshooting
EZ-Cal Scan Tool
EZ-Cal Adjustment
EZ-Cal Setup
EZ-Cal Diagnostics
EZ-Cal Outrigger Test Mode
Retrieve Mode and Help Messages from the Ez-Cal
EZ-Cal HELP Messages
Trouble Table
Hydraulic Pressure Adjustment Procedures
Troubleshooting Battery Charger
Section 5
Schematics
Hydraulic Schematic
Main Hydraulic Manifold
Main Relief Hydraulic Manifold
Optional Outriggers Hydraulic Manifold
Electric Schematics: Upper Controls, Early Models
Electric System
Electric Schematics: Upper Controls, Current Models
Electric Schematics: Base
P600 Motor Control Module
GP400 Matrix Module
Matrix Module Controller
Parts Section
Upper Controls, ANSI Models
Upper Controls, CE Models
Upper Control Box Cover Assembly
Upper Control Joystick
Lower Controls
Lower Controls
Platform Assembly
Rollout Lock Pin Assembly
Roller Assembly
Entry Chain, ANSI Models
Swing Gate, CE Standard / ANSI Option
Control Cable / Horn Installation
Power to Platform - Airline to Platform
Lanyard Attachment: CE Standard - ANSI Option
Section C Scissors
Scissor Assembly, 3072RT: up to Serial #11211099
Scissor Assembly, 3772RT: up to Serial #11211099
Scissor Assembly, 3072RT: Serial #11211100 - up
Scissor Assembly, 3072RT: Serial #11211100 - up (Continued
Scissor Assembly, 3772RT: Serial #11211100 - up
Scissor Assembly, 3772RT: Serial #11211100 - up (Continued
Limit Switch Installation
Scissor Guards - 3072ES, CE Models
Scissor Guards - 3772ES, CE Models
S D Ection
Rear Axle Assembly
Front Axle Assembly
Wheel Motor, Rear
Wheel Motor, Front
Main Manifold Assembly
Main Manifold Assembly (Continued
Main Relief Manifold Assembly
Manifold - Outrigger (HD Models
Hydraulic Hoses - Axles
Hydraulic Hoses - Steering, Brake Release and Axle Return
Hydraulic Hoses - Pump and Return
Hydraulic Hoses - Outrigger (HD Models
Lift Cylinder, 3072
Lift Cylinder, Lower, 3772
Lift Cylinder, Upper, 3772
Steering Cylinder
Outrigger Cylinder
Section F Base
Base Assembly
Ballast (Counterweight) Installation
Modules Installation
Control Module
Control Module (Continued
Power Module
Wire Harness
Outrigger Installation (3772ES HD
Section G Decals
Decals, ANSI Models
Decals, ANSI Models (Continued
Decals, CE Models
Decals, CE Models (Continued
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SERVICE AND PARTS MANUAL
3072ES / 3772ES /
3772ES HD
15 15
ART_2546
Serial Number Range
Part # 91778 R1
11211001 - Present
October 2008
Table of
Contents
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Chapters
Table of Contents
3
Section 1
17
Section 2
39
Section 3
55
Section 4
67
Parts Section
123
S D Ection
175
Table of Contents
Troubleshooting
TROUBLESHOOTING
67
General Troubleshooting Tips
68
Electrical System Troubleshooting
70
Troubleshooting Battery Charger
104
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