TracksHard

Replace Hydraulic Drive Motor

Remove and replace a failed hydraulic drive motor on the track assembly.

Estimated: 4-6 hours
1 model-specific guide
Model-Specific Guides

AGT H12

4 steps • 0 components

General Guide

Hydraulic Drive Motor Replacement

A failed hydraulic drive motor will cause loss of travel on one side. Replacement requires draining hydraulic fluid and careful handling of heavy components.

Tools Required:

Socket setWrench setDrain panHydraulic fluidNew O-ringsTorque wrenchLifting equipment

Safety Notes

  • • Relieve all hydraulic pressure before disconnecting lines
  • • Hydraulic fluid is hot after operation - allow cooling
  • • Drive motor is heavy - use proper lifting technique

General Steps:

1

Park machine on firm, level ground and lower all attachments.

2

Relieve hydraulic system pressure by cycling controls with engine off.

3

Remove rubber track from the affected side.

4

Place drain pan under drive motor and disconnect hydraulic lines.

Label lines for correct reinstallation.
5

Remove mounting bolts securing drive motor to track frame.

6

Carefully remove drive motor - use lifting equipment if necessary.

7

Transfer drive sprocket to new motor if not included.

8

Install new drive motor and torque mounting bolts to specification.

9

Reconnect hydraulic lines using new O-rings.

10

Refill hydraulic system and bleed air from lines.

11

Reinstall rubber track and tension properly.

12

Test travel operation in both directions and check for leaks.

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