Possible Cause: (Cable actuated pump) Cable is binding.

• Within 12 warranty period call 800.777.2671 ask for the Warranty Department, after 12-month Warranty period ask for the Parts Department. (Body serial number needed)
• If you replace cable please examine connection kits between cable and pump. Replace connection kit if excessive rust is apparent.

Possible Cause: (Air actuated) Body up lever a.k.a. feather valve is defective.

• Release airlines at the pump for the feather valve.
• Operate feather valve and check airline pressure with airlines unattached.
• If one of the airlines is not producing enough pressure to operate shifter spool on the pump, the feather valve may be defective.
• Replace feather valve.
• Within 12-month warranty period call 800.777.2671 ask for the Warranty Department, after 12 months ask for the Parts Department. (Body serial number needed)

Possible Cause: (Cable operated) Cast aluminum ear at the bottom of the body up lever, where cable attaches, has broken off. (This would normally be a symptom of a bound cable, and the lever has been forced.)

• Within 12-month warranty period call 800.777.2671 ask for the Warranty Department, after 12 months ask for the Parts Department. (Body serial number needed)

Possible Cause: Air tailgate cylinder bound and bypassing air through cylinder seal and exhausting in the cab.

• Check all pivot points on air tailgate cylinder and make sure they are lubricated and moving freely.(Air tailgate cylinder mounting bolt is to be LOOSE to allow cylinder to pivot.)
• Remove the pin from the yoke that attaches the air tailgate cylinder to the tailgate linkage.
• Operate the air tailgate switch with the air tailgate cylinder unattached.
• If it is still exhausting in the cab, replace the air tailgate switch.
• If it stops exhausting in the cab, see (Tailgates: Air tailgate cylinder).
• To replace air tailgate switch, within 12-month warranty period call 800.777.2671, ask for the Warranty Department, after 12 months ask for the Parts Department. (Body serial number needed)

Possible Cause: Shifter head is malfunctioning.

• Replace shifter head cover.
• Within 12-month warranty period call 800.777.2671 ask for the Warranty Department, after 12 months ask for the Parts Department. (Body serial number needed)

Body up light malfunctioning

Possible Cause: Flexible switch extension needs adjusted to come into contact with body on the way down.

• Adjust switch to the appropriate angle to catch dump body long members as body is lowered.

Possible Cause: Body up switch may have been damaged by falling material or another unnatural cause.

• Replace body up switch.

Possible Cause: Faulty switch

• Remove screws to body up switch cover, unhook both wires and cross them. The wires should arc.
• If the switch wires arc when crossed the problem is internal to the body up switch.
• Replace the switch.
• Within 12-month warranty period call 800.777.2671 ask for the Warranty Department, after 12 months ask for the Parts Department. (Body serial number needed)