Service Home How To Procedures Gearbox - Oil Pump - Replacement - AD0297
Last updated: 12/04/2018

Gearbox - Oil Pump - Replacement

AD0297

Introduction

This procedure tells you how to replace the oil pump in a gearbox. Although this procedure provides instructions for multiple kits, you only need (1) kit to complete the task.

Document Applies to these Parts

KIT PN: 93-30-11626, OIL PUMP, CALM MACHINE GEARBOX. QTY: 1

KIT PN: 93-30-11656, OIL PUMP, PRE-CALM MACHINE GEARBOX. QTY: 1

[A] 30-11626 QTY: 1 GEARBOX OIL PUMP ASSY, WITH INLET SCREEN

Gearbox - Oil Pump - Replacement

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.

2

Remove the two oil port covers [1]. Use an oiler to add (2) drops of oil to each of the ports.

Put the oil port covers [1] back on the oil pump.

Use a pen or thin rod [2] to turn the fan [3] 2 full revolutions.

 Note: For machines that have a pressure switch connected to the oil pump with spade connectors, use the adapter cable (P/N: 93-1353). The cable is included in the kit 93-30-11626.

3

Remove the spindle head covers.

Remove the oil supply [1] and oil return [2] hoses. Put a plug in each hose.

 Note: If the hose has a threaded connection, use an open-end wrench to support the fitting on the pump. Use a second wrench to remove the hose.

Disconnect the oil pressure cable [3] and the power cable [4] from the spindle connector panel.

4

Remove the pump assembly from the motor housing.

Attach the GEARBOX OIL PUMP ASSY, WITH INLET SCREEN [A] to the motor housing.

5

Attach the oil supply hose [1] and the oil return hose [2].

 Note: If the hoses have threaded connections, do these steps to connect each fitting:

  • Tighten the fitting with your hand.
  • Put a wrench on the fitting on the pump.
  • Put a second wrench on the fitting on the hose. Turn it clockwise 1/8 to 1/4 turn.

Connect the cable [3] for the pressure sensor to the spindle connector-panel that has the label "OIL PRESSURE."

 Note: The illustration shows a CALM machine. For pre-CALM machines, the cable [3] for the pressure sensor has a different type of connector.

Connect the power cable [4] to the location on the spindle connector panel that has the label "OIL PUMP."

Install the spindle head covers.