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40-Taper - Inline - TSC - Bearing Union - Upgrade to Bearingless Union - VMC - HMC

Service Home How To Procedures 40-Taper - Inline - TSC - Bearing Union - Upgrade to Bearingless Union - VMC - HMC
Recently Updated Last updated: 07/26/2019

40-Taper - Inline - TSC - Bearing Union - Upgrade to Bearingless Union - VMC - HMC


40-Taper - Inline - TSC - Bearing Union - Upgrade to Bearingless Union - VMC - HMC

- Jump to Section - 1. Introduction 2. Tools Required 3. 40-Taper - Inline - TSC - Bearing Union - Upgrade to Bearingless Union - VMC - HMC (7 steps) 4. TSC - 300 PSI - Coolant Pump Head/Motor - Replacement (3 steps) 5. TSC - Junction Box - Installation (3 steps) 6. TSC - Upgrade to Bearingless Union - Test (2 steps) Back to Top

Introduction

The images shown in this document are of a VMC.

  1. Bearing TSC Union Assembly
  2. Bearingless TSC Union Assembly
  3. Vacuum Generator

Tools Required

  • Spindle Lock Tool (T-1635)

40-Taper - Inline - TSC - Bearing Union - Upgrade to Bearingless Union - VMC - HMC

1

Push [POWER OFF]. Set the main circuit breaker to the OFF position. Lock the main circuit breaker. Use an approved lock with an approved safety tag.

Close the primary air valve. This stops the air supply to the machine.

Disconnect the shop air hose from the machine.

Remove the spindle-head cover panels.

Install the spindle lock tool.

2

To install TSC-1000 psi:

  1. Remove the 35-psi regulator and the regulator fitting [2] from the bearingless TSC union.
  2. Install the 85-psi regulator [1] and the regulator fitting [2] to the bearingless TSC union.
  3. Make sure the arrow [3] on the 85-psi regulator is in the correct direction.

Disconnect the vacuum-drain hose [4]. Remove the high-pressure braided hose [6] from the check-valve assembly [7]. Turn the bearing union hex-drive [5] clockwise to remove it.

Clean the motor-shaft threads. Apply Red-I grease to the o-ring and to the outer surface of the bearingless union shaft [8]. Apply medium-strength thread-locking compound on the threads of the shaft [8]. Install the shaft [8] onto the motor. The shaft [8] has left-handed threads. Torque the shaft [8] to 30 ft-lb (41 Nm).

Remove the spindle orientation lock tool. Manually turn the spindle, while you measure the error of the shaft [8]. Use a dial indicator. The radial [3] and axial [4] TIR must be less than .0005''.  If the TIR exceeds this value, shim the TSC shaft.

3

To shim the TSC shaft:

Measure the radial runout [1].

Mark the high spot with a pen [2].

Loosen the TSC shaft enough to create a gap between the TSC shaft and the motor shaft.

If the radial runout is than .0015'' use .0005'' shim stock.

If the radial runout is greater than .0015'' use .001'' shim stock.

Insert the shim at the marked location [3] and torque the TSC shaft to 30 ft-lb.

Trim away the excess shim stock.

4

After shimming the TSC shaft:

Measure radial runout [1].  It must not exceed .0005''.

Measure axial runout [2].  It must not exceed .0005''.

If shaft runout cannot be corrected with shims contact Haas service.

5

Install these parts on the spindle-drive motor:

  • (4) standoffs [4]
  • bearingless TSC union assembly [3]
  • (4) washers [2]
  • (4) socket-head cap screws [1]

 Note: Make sure the standoffs are equal length. Make sure the bearingless TSC union assembly is flat on the standoffs.

If you have a Baldor motor, use these parts; 20-6851 TSC UNION STANDOFF BGLESS 40T RETROFIT (Length: 2.147 ± .002), 40-1680 SHCS 1/4 x 2 x 2 3/4.

If you have a Yaskawa or a HAAS motor, use these parts; 20-5461 STANDOFF BEARINGLESS ROTARY UNION (Length: 1.445 ± .002), 40-1695 SHCS 1/4-20 x 2 1/4.

Tighten the (4) screws [1] with your fingers. Turn the spindle with your hand. Listen and feel for contact. Make sure the shaft does not touch the bearingless TSC union.

Push [POWER ON]. Operate the spindle at 50 RPM to let the bearingless TSC union align with the spindle.

Push [POWER OFF].

Torque the (4) screws [1] for the bearingless-TSC union assembly. Refer to the Haas Fastener Torque Specifications document. Use the value for steel.

Find the tube [5] for the tool release piston (TRP). This tube connects to the right side of the TRP solenoid assembly. Cut the tube [5] into (2) pieces.

Connect the first section [6] of the tube to the left port of the fitting assembly [7]. Connect the second section [8] of the tube to the right port of the fitting assembly [7].

6

Connect the 15" x 1/4" tube [1] to the (2) fittings on the bearingless TSC union.

Connect the first section of the 4' x 1/4" tube [2] to the fitting on the bearingless TSC union. Connect the second section of the tube [2] to the top fitting on the fitting assembly [4].

Connect the 25' x 1/4" tube [3] to the right port of the fitting assembly [4].

Put the tube [3] through the cable channel cover.

Connect the vacuum-drain hose [6] to the fitting on the bearingless union. Use a hose clamp (P/N 59-1347).

Connect the first section of the high-pressure braided hose [5] to the bearingless TSC union. Connect the second section of the hose [5] to the check-valve assembly [7].

7

For VMC [A]: Put the drain hose [1] at the rear of the spindle.

For HMC [B]: Put the drain hose [1] through the hole [2] at the rear of the spindle.

TSC - 300 PSI - Coolant Pump Head/Motor - Replacement

1

To replace a coolant pump motor that has the Amphenol connector.:

Disconnect the Amphenol power cable [1] for the coolant pump.

Remove the installed coolant-pump motor [2] from the coolant tank.

Remove the Amphenol power cable [1] from the motor [2].

Remove the 4-prong power cable [3] from the right side of the junction box.

 Note: Record the positions of the colored wires [4].

Disconnect the colored wires [4].

Install the Amphenol power cable [5] to the junction box.

2

To replace a coolant-pump head that is attached to a stand [3]:

Remove these parts:

  • (4) socket head cap screws [2] and the motor [1] for the coolant pump

 Note: If you must replace only the motor, install the new motor at this time. This procedure is completed.

  • (4) button head cap screws [8] and the filter housing [9]
  • coupler [3] and (4) socket head cap screws [4]
  • (2) compression fittings [5] and pump head assembly [6]
  • (2) steel tube assemblies [7]

Install the new coolant pump with the coupler [10] in the opposite sequence that it was removed.

3

To replace a coolant-pump head or motor that does not have a stand:

Remove these parts:

  • (4) socket head cap screws [2] and the motor [1] for the coolant pump

 Note: If you must replace only the motor, install the new motor at this time. This procedure is completed.

  • coupler [3] and (4) socket head cap screws [4]
  • (2) compression fittings [5] and pump head assembly [6]
  • (2) steel tube assemblies [7]

Install the new coolant pump with the coupler [8] in the opposite sequence that it was removed.

TSC - Junction Box - Installation

1

Install a jumper [2] to the (2) bottom pins of P50 [1] on the I/O PCB. Do this if no jumper (P/N 75-15062) is at P50 on the I/O PCB.

 Note: The jumper bypasses the heat sensor for the pump motor.

Install the junction box [7] with the cable clamp [6] on the TSC coolant pump.

 Note: Do this for machines with the TSC Auto-Clean Coolant Pump or with the TSC 1000 psi coolant pump cart.

Connect the cable [3] for the junction box to the machine.

Connect the cable [4] for the junction box to the cable for the coolant pump [5].

Connect the 25' x 1/4" tube [8] from the bearingless TSC union to the fitting [9] for the air separator.

2

For machines that do not have the CALM system:

Find the fitting [2] on the assembly for the air-filter regulator in the back of the machine. Connect the hose [1] to the fitting [2].

Connect the other end of the hose [1] to the top fitting [3] on the junction box.

3

For machines that have the CALM system:

Remove one of the available manifold port plugs [1]. Install the 90-degree elbow fitting [2] in the port.

Install the female quick-disconnect fitting [3].

Connect one end of the 1/4" hose [4] from the kit to the fitting [3].

Put the hose [4] through the bottom of the lubrication panel.

Connect the other end of the hose [4] to the fitting [5] on the junction box.

TSC - Upgrade to Bearingless Union - Test

1

Set the main circuit breaker to the ON position.

Push [POWER ON].

Push [RESET].

Push [AUX CLNT] to activate the TSC.

Examine the TSC hoses for leaks.

2

Correct operation is as follows:

  1. Coolant [1] flows correctly from the spindle.
  2. A few drops flow from the vacuum drain hose [3].

Push [RESET].

Put a TSC toolholder [2] in the spindle.

Push [AUX CLNT] to start the TSC.

Correct operation is as follows:

  1. Coolant flows correctly from the TSC tool holder.
  2. A few drops flow from the vacuum drain hose [3].

Examine the TSC hoses for leaks.

Push [RESET].

FIND DISTRIBUTOR
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