APT 500

Original Text: APT 500


The APT 500 L is equipped with hydraulic lifting and lowering chassis rail gear.

The front guide wheel assembly attaches to the frame and front axle and lifts the front wheels off the track, thus utilizing the vehicle's front suspension. This design supports the vehicle as it was intended and helps the truck navigate curves smoothly and damp out the effects of track irregularities. The rear assembly attaches directly to the truck frame behind the rear axle/tandem spring hangers. It deploys with an articulated dual scissor action that allows the rear rail gear to be moved both vertically and horizontally. This mechanism provides the "side shift" action. It gives operators a greater margin for aligning the vehicle to the track which speeds and simplifies the process of getting the vehicle on the rail.

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Revised Text:

The APT 500 L is equipped with hydraulic, lifting and lowering chassis rail gear.

The front guide wheel assembly attaches to the frame and front axle, and lifts the front wheels off the track, thus utilizing the vehicle's front suspension. This assembly supports the vehicle as the design intended and helps the truck navigate curves smoothly and dampens out the effects of track irregularities.

The rear assembly attaches directly to the truck frame, behind the rear axle/tandem spring hangers. It deploys with an articulated dual scissor action, which allows the rear rail gear to be moved both vertically and horizontally. This mechanism provides a "side shift" action. It gives operators a greater margin for aligning the vehicle to the track, which speeds and simplifies the process of getting the vehicle on the rail.

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