MAHLE RTI DFX-1 User Manual

DFX-1 Differential Fluid Exchanger

Operation Instructions

WARNING

The DFX-1 is designed to exchange differential fluid.

Using the DFX-1 for brake fluid or other liquids may

damage the pump seals and will void the warranty

EXCHANGE

1. Verify that there is enough fluid in the New Fluid Tank and sufficient space in the Used Fluid
Tank for the exchange procedure.

2. Remove the service plug in the differential cover and insert the Service Hose labeled Used into
the open service hole.

3. Remove the used fluid from the differential by opening the valve on the Used Hose and
pressing the switch labeled Used on the DFX-1 control panel. Close valve and remove the
hose when finished.

4. To refill the differential insert the hose labeled New into the differential service hole.

5. Open the valve on the New Hose and press the switch labeled New on the DFX-1 control
panel. Close valve, remove hose and replace service plug when finished.

Note: Refer to the vehicle capacity chart for quantity of fluid required. Typically, the

differential is full when fluid drains out of the service hole when vehicle is level.

Caution: Do not allow Used Tank to overfill

REPLACEMENT PARTS

Pump 345-80006-00
New Fluid Tank 315-80004-00
Used Fluid Tank 315-80005-00
Hose Cap 028-80250-18
Switch 024-80066-00

RTI Technologies, Inc. - 10 Innovation Drive - York - Pennsylvania 17402 - USA

Phone [phone] www.rtitech.com

Always wear safety glasses while using the DFX-1 035-81136-00