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MMD > Archives > December 1996 > 1996.12.31 > 10Prev  Next

Re: Terrible Problem With Player
By Bob and Sonja Lemon

My guess is that your player stack has lead tubing and a transposing tracker bar, such as, Simplex or Amphion. Between the tracker bar and the lead tubes is a short section of rubber tubing which normally allows the tracker bar to move back and forth. We have found a few cases where the younger generation has forced the transposing lever sufficiently to move the tracker bar. This shatters all that OLD rubber tubing that hasn't moved for years. The result would be that all the hammers move towards the strings when playing.

Solution: Remove the upper and lower covers just in back of the tracker bar. This will expose the shattered rubber tubing. Remove all remaining rubber tubing and replace with new tubing. When re-tubing, be sure to shift the tracker bar to the right when replacing left side tubing and then shift to the left when replacing right side tubing.

Another possible reason for the problem would be a separate bleed chest with an air-supply-to-pump vacuum. If the supply to the pump is restricted or lost, this would allow all the pouches to activate, causing the same problem. The only place we've ever seen this problem is on a bleed bar behind the tracker bar on an Apollo player grand.

Bob Lemon

(Message sent Tue 31 Dec 1996, 21:48:16 GMT, from time zone GMT-0800.)

Key Words in Subject:  Player, Problem, Terrible

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