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UMC C-Axis Platter Replacement - AD0501

Service Home How To Procedures UMC C-Axis Platter Replacement - AD0501

UMC C-Axis Platter Replacement - AD0501

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10.4 UMC ROTARY PLATTER - REPLACEMENT

Recently Updated Last updated: 01/06/2022

UMC C-Axis Platter Replacement


AD0501

Introduction

This procedure will show you how to replace the platter on a UMC machine.

This procedure applies to the following service kits:

  • 93-1000464 UMC-500 Blank Platter Field Install
  • 93-1000465 UMC-750 Blank Platter Field Install
  • 93-1000466 UMC-1000 Blank Platter Field Install

 

Platter Removal

1

  • Home the B and C-Axis.
  • Press MDI, program "M13", press cycle start.
  • Press the Emergency Stop button.
  • Open the lube panel on the tool-changer side of the machine.
  • Rotate the ball valve shown to cut off air the the machine.
    • The wings of the valve should be perpendicular to the pipe.
  • Purge excess air pressure from the machine by pulling and holding the ring on the purge valve until you no longer hear air escaping.
  •  Note: The initial pull of the ring will make a popping sound. This is normal
  • Note: If you followed a link from the UMC C-AXIS BRAKE REPLACEMENT procedure to reach this page, complete this step then, skip to the Platter Installation section below.

2

  • Remove the brake line from the the C-Axis booster

3

  • Install a Male 7/16"-20 O-Ring Boss fitting (dash number -04) into the booster where the brake line was removed.

4

  • Remove the plastic bolt cover plugs to access the platter mounting bolts.
  • To do so drill a pilot hole then, insert a wood screw or similar to use as a handle to remove the plug. These will need to be replaced at the end of this procedure.
  • Next, remove the platter mounting bolts.
UMC Rotary Unit – Weight Reference Guide

5

  • The platter can now be safely lifted from the rotary assembly.
  • To do so first install 2 T-nuts and 2 eyebolts in the configuration shown.
  • Next, use a lifting strap and crane/fork-lift to slowly lift the platter straight up and off of the rotary assembly.
  • Be mindful of any shims where the platter mates to the gearbox. Be mindful to keep these shims in the same position you found them. This will save you time during the alignment process.

6

  • If removing a No-Slot or Pallet-Pool platter, you will need to use tool 15-6462.
  • Next, use a lifting strap and crane/fork-lift to slowly lift the platter straight up and off of the rotary assembly.
  • Be mindful of any shims where the platter mates to the gearbox. Be mindful to keep these shims in the same position you found them. This will save you time during the alignment process.

Platter Installation

1

  • If installing a UMC 500 platter, be sure the gearbox mounting hole pattern is oriented as shown.
  • The holes highlited in blue show the bolt pattern position required to mount the platter.  
  • The single hole highlited in red needs to be pointing to the 9 O'clock position.
  • If the gear box is not in the orientation shown, you will need to jog the C-Axis to the correct position. To jog the C-Axis you will need to return air to the machine, release Emergency Stop, and clear alarms.
  • Warning: Before jogging the C-Axis verify the C-Axis booster is still plugged (see step 3 of the Removal Process above)

 

2

  • If installing a UMC 750 or UMC 1000 platter, be sure the gearbox mounting hole pattern is oriented as shown.
  • The holes highlited in blue show the bolt pattern position required to mount the platter.  
  • The single hole highlited in red needs to be pointing to the 12 O'clock position. To jog the C-Axis you will need to return air to the machine, release Emergency Stop, and clear alarms.
  • If the gear box is not in the orientation shown, you will need to jog the C-Axis to the correct position.
  • Warning: Before jogging the C-Axis you will need to verify the C-Axis booster is still plugged (see step 3 of the Removal Process above)

 

3

  • If installing a Pallet Pool platter, be sure the gearbox mounting hole pattern is oriented as shown.
  • The holes highlited in blue show the bolt pattern position required to mount the platter.  
  • The single hole highlited in red needs to be pointing to the 9 O'clock position. To jog the C-Axis you will need to return air to the machine, release Emergency Stop, and clear alarms.
  • If the gear box is not in the orientation shown, you will need to jog the C-Axis to the correct position.
  • Warning: Before jogging the C-Axis you will need to verify the C-Axis booster is still plugged (see step 3 of the Removal Process above)

4

  • Next lower the platter onto the rotary assembly using one of the lifting configurations shown in Steps 5 & 6 of the Platter Removal section (above).
  • Be mindful of any shims where the platter mates to the gearbox. Be mindful to keep these shims in the same position you found them. This will save you time during the alignment process.
  • If installing a UMC 500 platter, place the platter onto the rotary assembly in the orientation shown on the left [1]
  • If installing a UMC 750/1000 platter, place the platter onto the rotary assembly in the orientation shown in the middle [2]
  • If installing a UMC Pallet Pool platter, place the platter onto the rotary assembly in the orientation shown on the right [3]

5

  • Lightly install the platter mounting bolts. Do not torque in place. The platter position will need to be adjusted in the following steps.

6

  • If you did not need to jog the C-Axis in steps 1-3, ignore this step. Go to next step.
  • Press MDI, program "M13", press cycle start.
  • Press the Emergency Stop button.
  • Open the lube panel on the tool-changer side of the machine.
  • Rotate the ball valve shown to cut off air to the machine.
    • The wings of the valve should be perpendicular to the pipe.
  • Purge excess air pressure from the machine by pulling and holding the ring on the purge valve until you no longer hear air escaping.
  •  Note: The initial pull of the ring will make a popping sound. This is normal

7

  • Remove the male ORB fitting from the booster.

8

  • Reinstall the brake line to the the C-Axis booster.

9

  • Open the lube panel on the tool-changer side of the machine.
  • Rotate the ball valve shown to return air to the the machine.
  • You will now need complete the C-Axis Bleeding portion of the UMC ROTARY BRAKE BLEEDING PROCEDURE before continuing to the next section.

Platter Alignment

1

  • Warning:  Do not perform any steps in this section without reading all steps in all previous sections.
  • Jog the platter while indicating off of the center bore ID. Runout must be 0.001" or less.  Adjust as needed. 
  • TORQUE THE PLATTER MOUNTING BOLTS TO SPEC then, verify runout.

2

  • With bolts torqued to spec, zero the indicator on the face of the platter, 1" from the edge using a 1-2-3 block. 
  • Brake Unclamped:
    • Jog the platter measuring every 90° with the brake unclamped in each position.
    •  Inspect and document the runout. 
    • Face runout NTE 0.0005" with the brake unclamped on all UMC platter sizes.
  • Brake Clamped in 4 positions:
    • Jog the platter measuring every 90° with the brake clamped in each position. 
    • Inspect and document the runout. 
    • Face runout NTE 0.0005" on UMC 500
    • Face runout NTE .001" on UMC 750/1000
  • If not within specification, you will need to remove the platter, shim where needed, and repeat the platter alignment process.
  • If within specification, the platter installation is complete.

3

SET C - AXIS TOOL CHANGE OFFSET AND MAKE PLATTER PARALLEL TO X

  • Check the Table Parallel to X-Axis by running an indicator on  the T-Slot. Adjust C axis to set Table parallel to X. (NTE 0.0005/10"; NTE 0.0010" overall).
  • In Service mode :  Go to the Parameters > Factory Settings page.
  • Type in .078 press [F1]
  • Enter the axis letter and press [F2] to set the tool change offset.

NOTE:  Setting a new tool change offset may require updating compensation table values for the C-Axis. This will require laser calibration.

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