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How to Run Air Line on Motorhome to Activate Roadmaster BrakeMaster System

Question:

How to get air supply to rear of Holaday Rambler Neptune to operate air brakes on toad. The brake mechanism is Roadmaster brakemaster 9000. Were to pickup the air supply for this braking device? Thanks in advance

1

Helpful Expert Reply:

The instructions for installing the air line on your Holiday Rambler Neptune from the Roadmaster BrakeMaster, like part # RM-9160, is fairly extensive but if you check out page 10 of the linked instructions for the BrakeMaster you can see that the following is stated:

There are three possible connection points for the motorhome air line —
1 - If the motorhome has air brakes, the line can be attached to an open port at the air brake relay valve.
2 - If the motorhome has air over hydraulic brakes, the line can be attached to an open port at the main brake air booster housing.
3 - If there is no open port, a tee must be used. In this step, you will attach the motorhome air line at one of these three points, then route it to the rear of the motorhome.

Please note that a complete flat towing setup includes a base plate kit, tow bar, safety cables, vehicle tow bar wiring, a supplemental braking system, and possibly a high-low adapter. If you do not have all of these components just let me know and I can make some additional recommendations for you.

helpful expert reply by:
1
Jon G

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