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What is the correct inspection point for the sliding tandem (slider) assembly on a trailer?
- A.All locking pins must be fully engaged in the rail holes and the stop bar/release handle secured, so the tandem cannot slide while driving
- B.Only one pin needs to engage if the load is light
- C.The pins are checked only when the tandem is repositioned
- D.A slider is allowed to move slightly to absorb bumps
Correct answer
A. All locking pins must be fully engaged in the rail holes and the stop bar/release handle secured, so the tandem cannot slide while driving
Why
An unpinned tandem can slam to the end of its rails under braking, changing axle weights and possibly damaging the trailer. Fully engaged pins on both sides are required before moving.
Manual topic: Combination Vehicles - Trailer Inspection · From the Combination Vehicles practice bank (CV-174).