Bleed Trailer Air Brakes (If Equipped)

RXA0134198-UN-25JUL13

RXA0134199-UN-25JUL13

A - Red Trailer Air Brake Coupler

B - Bleed Valves

NOTE: An assistant is needed to perform this procedure.

Trailer air brakes are equipped with automatic bleed valves. Automatic bleed valves will vent an air/oil/water mixture multiple times during normal operation of tractor.

First person will stand by rear hitch and manually push in red trailer air brake coupler (A). Second person will feel if bleed valves (B) cycle. Bleed valves (B) are located on bottom of trailer brake air tanks. The air tanks are located in front of right rear axle.

1. CAUTION: To avoid injury, be sure all people are clear of tractor.

   Start tractor.
2. Wait 1 minute for air tanks to build up pressure.
3. NOTE: Continuous release of air will not allow trailer air brakes to bleed. Coupler must be cycled in an on/off process.
   Person 1 repeatedly cycles red trailer air brake coupler (A) on and off.
4. Person 2 places hand below bleed valves, (B) and feel for a release of air, water or oil.

Bleed valves cycle randomly. If they do not operate first time, wait 10 minutes and try this process again. If no venting is observed, contact your John Deere™ dealer.