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mysterious dump bed

Discussion in 'Trucks and Trailers' started by Scotty, Oct 28, 2000.

  1. Scotty

    Scotty LawnSite Member
    Posts: 67

    I have a 1997 cab chassis Chevy 4x4. The dumping flatbed is made by Knapheide, it is 8' x 9'. The pump is electric, power up an down.

    When I lower the bed, it goes down smoothly and lays flat on the platform frame. The problem is, it lifts back up about 1" by itself after a few minutes. It does not matter if the truck is parked or driving the result is the same.

    Has anyone experinced this before and how can I resolve this problem.

    Thanks Scott

    BUSHMASTER LawnSite Senior Member
    Posts: 519

    Is their a posiablity of air in the system?. does it occure when their is a load? or too much fluid?

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