Extending and Retracting the Trombone Sidelifter

SBdanger

The trombone sidelifter must be coupled to a tractor unit during extending or retracting.

NEVER attempt to extend or retract the chassis when the sidelifter is laden.

Instructions for extending/retracting the trombone chassis:

Before trying to extend the trombone chassis, ensure the modules are in the retracted 20 foot position. Apply park brake on the tractor unit and release the trailer brakes.

Push in the trombone lock release button located in the clear box at the landing legs (see A)
Move the extend/retract lever (B ) in the direction required (down for extend and up for retract) and hold it in place.

Once the mechanism starts to move, release the trombone lock release button (A), but keep holding the lever as you walk beside the unit. Once released the lock will self reset so the locks will automatically lock when they get to the next lock position.

trombone1