MH(T)-SERIES SIGMA-7 POSITIONER MANUAL (R7)

September 10, 2026 19:45
Updated

1.1 System Overview

1.2 System Layout

1.2.1 System Description

1.2.2 Drive Assembly with MotoMount

1.2.3 Headstock Assembly

1.2.4 Positioner Assembly (Headstock and Tailstock)

1.3 MH-Series Positioner Assembly

1.4 MotoMount™

1.5 Reference Documentation

2.1 Materials Required

2.1.1 Customer-Supplied Items

2.1.2 List of Tools

2.2 Installing the MH(T)-Series Positioner

2.2.1 Site Preparation

2.2.2 Unpacking

2.2.3 Headstock Column Assembly Mounting (If Included)

2.2.4 Headstock Assembly Mounting Hole Pattern

2.3 Tailstock Column Installation

2.3.1 Tailstock Installation

2.3.2 Tailstock Column Assembly Mounting (If Included)

2.3.3 Leveling the Tailstock

2.3.4 Tailstock Assembly Mounting Hole Pattern

3 Tooling Recommendations

3.1 Headstock Only – Tooling Recommendations

3.2 Customer-supplied Tooling Fixture

3.2.1 Recommendations

3.2.2 Mounting Holes – Faceplate

3.3 Headstock/Tailstock with MotoMount

3.3.1 Customer-supplied Tooling Fixtures

3.3.2 Specifications

3.3.3 Tailstock Flange Specifications

4 MHT Positioner System Tooling Installation

4.1 MHT Positioner System Tooling Installation

4.1.1 Tooling Fixture Installation

4.1.2 Final Alignment Check

4.1.3 Removing Tooling Fixture

5.2 Cable Connection

5.2.1 Headstock Cable Connections with Columns

5.2.2 Drive Assembly without Columns

5.2.3 Connection to the Robot Controller

5.2.4 Ground Cables

5.2.5 Home Position

6 Basic Specifications

7 Maintenance and Troubleshooting

7.1 Inspection Interval

7.2 Battery Pack Replacement

7.3 Grease Replenishment/Exchange

7.3.1 Headstock Drive, MH(T)550 and MH(T)1650

7.3.2 Tailstock MotoMount, MH(T)550 and MH(T)1650

7.3.3 Headstock Drive MH(T)180

7.3.4 Headstock Drive MH(T) 3150/6000

7.4 General Cleaning

7.5 Sigma 7 Servomotors

7.7 Welding Ground System

7.7.1 Inspection and Cleaning of Carbon Brushes

7.7.2 Weld Ground Brush Replacement

7.8 AC Servomotor Encoder Back-Up Battery

7.9 Reset Headstock to Home Position

7.10 Troubleshooting

7.10.1 Positioner

8 Recommended Spare Parts

9 Performance Charts

9.1 MH(T)550-Series Positioner Assemblies

9.2 MH(T)1650-Series Positioner Assemblies

9.3 MH(T)3150-Series Positioner Assemblies

9.4 MH(T)180-Series Positioner Assemblies

9.5 MH(T)6000-Series Positioner Assemblies

10 Illustrated Parts List

10.1 Introduction

10.1.1 Areas of the Illustrated Parts List

10.2 Illustrated Part List

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