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Slack Adjusters & Pushrod Stroke

In what limited situation may a manual adjustment of an automatic slack adjuster be appropriate?

  • A.At every fuel stop as routine practice
  • B.During installation, foundation brake work, or as a temporary emergency measure to move the vehicle for repair, following the maker's procedure
  • C.Whenever the driver wants a firmer pedal for a mountain grade
  • D.To avoid reporting a brake that is out of adjustment
Correct answer

B. During installation, foundation brake work, or as a temporary emergency measure to move the vehicle for repair, following the maker's procedure

Why

Maker procedures allow manual movement for setup and repair work, and a temporary adjustment may get a vehicle to a shop in an emergency. It is not a substitute for finding why the automatic function failed to hold adjustment.

Manual topic: Air Brakes - Slack Adjusters · From the Air Brakes practice bank (AB-163).

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