Standard Coolant – Universal - Pump - 3/4 HP - Replacement

Applies to machines built from: 
April, 1998
AD0217 Rev G

Coolant - 3/4 HP, Single-Phase Pump - Universal Replacement - Introduction

The 3/4 hp Single-Phase Universal Replacement Pump:
  • You can adapt this universal replacement pump to fit all machines that use a 3/4 hp single-phase pump.
  • The replacement pump fits and will operate the same as the old pump, although it may look different from the old pump.
  • You install parts from the old pump onto the new pump.
  • If the power cable on the new pump is different from the old pump, move the cable from the old pump to the new pump.
Safety Notes
Caution: When you do maintenance or repair on CNC machines and their components, you must always follow basic safety precautions. This decreases the risk of injury and mechanical damage.

Do these steps before you do work in the machine or in the control cabinet:
  • Set the main circuit breaker to the OFF position.
  • Use an approved lock with an approved safety tag. Always follow lock-out procedures in accordance to local government rules.
  • After turning off the machine, wait at least 5 minutes before working in the control cabinet, to allow power to dissipate. Wait for the voltage indicator LED on the vector drive to go off completely.
  • Always turn off the main air supply when you work on any part of the pneumatic system.
  • Make sure to rest the spindle head on a block of wood when work is done on a vertical axis. This will prevent any unintended movement that could result in the axis falling.
  • Never alter any safety circuits on the machine.
You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes. Serious damage to the machine components can result in costly repairs. The service technicians at your Haas Factory Outlet (HFO) have the training and experience, and are certified to do these tasks safely and correctly. The repair and service work performed by your HFO is protected with a limited warranty.
danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not fully understand. If you have any doubts about doing a procedure contact your Haas Factory Outlet (HFO) and schedule a service visit.

Machine Compatibility

You can install the 3/4 hp, single-phase Universal Replacement Pump on any machine that currently has a 3/4 hp, single-phase coolant pump.

Parts Included

KIT PN: 93-30-0126A, PUMP, COOLANT 3/4HP. QTY: 1
[A]
30-11848
QTY: 1
3/4HP 1PH PUMP/MOTOR
[B]
76-2212
QTY: 2
CRIMP TYPE WIRE NUT 22-12NYLON INSUL CLO

Tools Required

Wire Cutters
Crescent Wrench
Phillips Screwdriver
3/16" Allen Wrench
Drill Bit - "Q" (0.322")
1/8" NPT Tap and Handle
Drill
Thread Sealing Tape

Coolant - 3/4 HP, Single-Phase Pump - Universal Replacement

Step 1

If a standard auxiliary coolant filter (AF-STD) system [1] is not connected to the old pump, do Step 2.

If a standard auxiliary coolant filter (AF-STD) system [1] is connected to your old pump, drill and tap a 1/8" NPT hole at the location on the pump shown.

Step 2

Disconnect and remove the old pump [1] from the coolant tank.

Remove the hose fittings [3] from the old pump. Note their orientation and order.

Remove the old pump from the stand [2], if applicable.

Install the PUMP/MOTOR [A] into the old stand, if applicable. Use the old hardware.

Apply sealant to the threads of the old fittings [3]. Install the fittings [3] on the PUMP/MOTOR [A] in the correct location [4].

Connect the AF-STD fittings to the new pump, if applicable.

Step 3

Do this step if you must replace the PUMP/MOTOR [A] and the plug on new cable [1] is not compatible with the machine:

Note the wiring before removing the cable. Remove the cable [1] from the old pump motor. Remove the cover and cable from the new PUMP/MOTOR [A]. Install the cable [1] from the old motor to the new PUMP/MOTOR [A].

Correctly connect the old cable to the new PUMP/MOTOR [A]. Use the (2) CRIMP WIRE NUTS [B]. Use wire strippers and crimp pliers to correctly connect the cable.

Install the new pump assembly into the coolant tank. Connect the supply hoses and power connector.

If you have an AF-STD system, install the 1/4" hose and the 1/8" to 1/4" fitting from the AF-STD kit into the hole you drilled in STEP 1.

Push COOLANT. Make sure the coolant system operates correctly. Examine all connections for leaks.

Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. Contact your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.

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