Service Manual - Disclaimer

You should not do mechanical or electrical machine repairs or service procedures unless you are qualified and knowledgeable about the processes.

Only authorized personnel with the proper training and certification should do many repair procedures.

WARNING: Some mechanical and electrical service procedures can be extremely dangerous or life-threatening. Know your skill level and abilities.

All information herein is provided as a courtesy for Haas machine owners for reference and illustrative purposes only. Haas Automation cannot be held responsible for repairs you perform. Only those services and repairs that are provided by authorized Haas Factory Outlet distributors are guaranteed.

Only an authorized Haas Factory Outlet distributor should service or repair a Haas machine that is protected by the original factory warranty. Servicing by any other party automatically voids the factory warranty.

 

Introduction

These components of the UMC-750 are the same as other Haas machines:

  • Linear guides
  • Ball screws
  • Servo motors
  • Motor mounts
  • Bearing packs
  • Couplers
  • Side-mount tool changer (SMTC)
  • Spindle
  • Spindle motor
  • TRP
  • Conveyor
  • The rotary axes are HRT310 and HRT450 components.

These components are different than other machines:

  • Covers
  • Some service tools

This document shows the basic UMC assembly and the location of primary components. Except where noted, use standard troubleshooting and repair procedures.

UMC- Shipping Configuration

  1. The enclosure supports are folded in against the base for shipping.
  2. The rear panels are removed and stowed together for container shipping.

UMC- External Features - Front

  1. Chip clean-out tray
  2. C-Axis rotary oil reservoir

UMC - External Features - Rear View

  1. Rear panels
  2. Washdown hose
  3. TSC filter (optional)
  4. TSC coolant pump (optional)
  5. Coolant filter basket (shown installed)
  6. Standard coolant pump
  7. Spindle fan motor exhaust port

UMC- Internal Features - Front View

  1. Standard SMTC40
  2. Spindle head
  3. Table
  4. Lift point (removable bracket shown installed)
  5. Base
  6. Bridge
  7. Axis grease line storage
  8. Consolidated air/lube panel
  9. Lifting eye plate (shackles to be provided by rigger)
  10. Ram
  11. Delta/wye connector
  12. X-Axis way cover

UMC - Internal Features - Axis Motors

  1. X-Axis motor
  2. Y-Axis motor
  3. Z-Axis motor

UMC - Internal Features - WIPS Probes

  1. Gage ball tool
  2. Master gage length tool

UMC - Unique Software

  • Parameter 737 ENABLE TCPC AND DWO
  • Parameter 737:19 must be enabled (set to 1) for Dynamic Work Offset (DWO) and Tool Center Point Control to function.
  • The Machine Rotary Zero Point (MRZP) Offsets are a set of parameters in the Haas CNC control that define the location of the centers of rotation for the rotary table, relative to the linear axes home position. The value stored in these parameters is the distance from the home position of a linear axis to the center of rotation of a rotary axis. The units are in inches, scaled by 10,000. For example, the default value for Parameter 1306 is -150000, representing an offset of -15.0 inches from machine X-zero. The units for these parameter values will always be in inches, regardless of the units selected in Setting 9. The MRZP Offsets are set at the factory. The Wireless Intuitive Probing System (WIPS) can be used to verify Parameters 1306, 1307, and 1308.
     Parameters 1306, 1307, and 1308 define the following:
    • Parameter 1306 – Machine Rotary Zero Point X Offset - Location of the B-Axis rotary center point relative to the X-Axis home position.
    • Parameter 1307 – Machine Rotary Zero Point Y Offset - Location of the C-Axis rotary center point relative to the Y-Axis home position.
    • Parameter 1308 – Machine Rotary Zero Point Z Offset - Location of the B-Axis rotary center point relative to the Z-Axis home position.

UMC - Service Tools - Spindle Removal Tool

The spindle and motor are removed and cradled by the spindle drive removal tool (P/N T-2191).

 Note:

  • To use this tool, you must override the B-Axis travel limits. This lets you turn the trunnion (B Axis) to the necessary position.
  • The illustration does not show enclosure panels. This lets you see the components. The removal of the enclosure panels is not necessary to replace the spindle drive.

UMC- Service Tools - Spindle Leveling Tool

  1. 99-1002 magnetic base and arm tool
  2. T-2192 leveling adapter, UMC
  3. T-2181 CNC dual leveling tool

 Note: Refer to UMC Level and Alignment Video to see how to use this tool.

Introduction

Within recent years Haas Automation has made design updates to the UMC-750. Some but, not all parts are interchangeable between older machines and their redesigned counterparts.

To identify which iteration of these machine models you are dealing with, look for the following key identifying features below.

UMC-750 Reboot Version

Reboot UMC-750 machines (current version) have a smaller operator door which rides behind the machine enclosure.

UMC-750 Non-Reboot Version

Non-Reboot UMC-750 machines have a large operator door which rides in front of the machine enclosure.

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