10.1 UMC ROTARY BRAKE BLEED - INSTRUCTIONS

Assemble the bleeding tool as shown.

Use 58-1743 (NIPPLE 1/8 NPT X 5 BRASS) for UMC-500 and UMC-750.

Use 58-1751 (NIPPLE 1/8 NPT X 7 BRASS) for UMC-1000.

Use Teflon thread sealing tape if necessary.

Note: Be sure the arrows on 58-2754 (VALVE CHECK NPT-1/8-F X NPT-1/8-F BRASS) are pointing towards 58-3050 (FITG PC1/4F NPT1/8M 90 STL).

• Home the B-Axis
• Press MDI, program "M11", press cycle start.
• Press the Emergency Stop button
• Open the lube panel on the tool-changer side of the machine
• Rotate the air shut off valve 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.

• Remove access plug
• To do so, drill a pilot hole then, screw in a wood screw to use as a handle to pull the plug out

Use a T-handle allen wrench to remove the threaded brake bleed plug.

Note: Be careful to not drop this plug into the casting.

• Screw in and tighten the bleed tool. 
• Ready a catch -can to catch any oil bled from the brake system.
• Attach a clear 1/4" OD hose to the bleed tool and run it to the catch-can.

• Turn air back on. The wings of the the valve should run parallel to the pipe.

• Release Emergency Stop and clear alarms.
• Open MDI, program "M10", press Cycle Start.
• The booster will pulse 3 to 5 times in an attempt to build pressure and in doing so will pump out brake fluid.
• You should recieve alarm 6.4011 Rotary Brake Engagement Failure.
• Clear the alarm and repeat until all air bubbles are bled from the system.

• If you did not recieve this alarm, and no oil left the bleed tool, check to see that the check-valve of the bleed tool is properly oriented.

• When finished, press emergency stop then turn air off again.

• Purge excess air pressure from the machine by pulling and holding the ring on the purge valve until you no longer hear air escaping.

• Remove the bleed tool then, quickly reinstall the threaded plug being careful to not drop the plug in the casting.

• Release Emergency Stop
• Turn air back on
• Jog the B-Axis, then X-axis, then B-Axis again to ensure the B-Axis brake reliably engages and disengages.
• Be sure to refill the B-Axis brake fluid resevoir to the appropriate level

• Install a new B-Axis bleed port access plug (20-5715)

• Jog the C-axis platter such that the access hole is in the 3 O'clock position. 

• 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 air shut off valve 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.

• Remove access plug
• To do so, drill a pilot hole then, screw in a wood screw to use as a handle to pull the plug out

Use a T-handle allen wrench to remove the threaded brake bleed plug.

Note: Be careful to not drop this plug into the casting.

• Screw in and tighten the bleed tool. 
• Ready a catch -can to catch any oil bled from the brake system.
• Attach a clear 1/4" OD hose to the bleed tool and run it to the catch-can.

• Turn air back on. The wings of the the valve should run parallel to the pipe.

• Release Emergency Stop and clear alarms.
• Open MDI, program "M12", press Cycle Start.
• The booster will pulse 3 to 4 times in an attempt to build pressure and in doing so will pump out brake fluid.
• You should recieve alarm 7.4011 Rotary Brake Engagement Failure.
• Clear the alarm and repeat until all air bubbles are bled from the system.

• If you do not recieve this alarm, and no oil leaves the bleed tool, check to see that the check-valve of the bleed tool is properly oriented.

• When finished, press emergency stop then turn air off again.

• Purge excess air pressure from the machine by pulling and holding the ring on the purge valve until you no longer hear air escaping.

• Remove the bleed tool then, quickly reinstall the threaded plug being careful to not drop the plug in the casting.

• Release Emergency Stop
• Turn air back on
• Jog the C-Axis, then X-axis, then C-Axis again to ensure the C-Axis break reliably engages and disengages.
• Be sure to refill the B-Axis brake fluid resevoir to the appropriate level

• Install a new C-Axis bleed port access plug (22-9087)