Air Pump: Service and Repair

DIFFERENTIAL TRU LOK PUMP

REMOVAL





1. Disconnect pumps and axle harness connectors (Fig. 63).
2. Remove pressure hoses from the front and rear pumps.





3. Remove pump mounting bracket bolts (Fig. 64).
4. Remove pumps and bracket assembly from the vehicle.
5. Remove pump connectors from the mounting bracket.





6. Remove pump mounting screws (Fig. 65) from the bracket and remove pump/pumps.

INSTALLATION
1. Align pump with screw holes in pump bracket.





2. Install and tighten pump mounting screws (Fig. 66).





3. Install pump bracket assembly on the crossmember/skid plate and install pump bracket mounting bolts (Fig. 67).
4. Tighten pump bracket bolts to 14 Nm (125 inch lbs.).





5. Connector pump and axle harness connectors (Fig. 68).
6. Install pressure hoses on the pumps.
7. Verify pump operation.