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Trailer Safety Instructions: Suspension Systems Mobile App

The Trailer Safety Instructions: Suspension Systems mobile app is designed to assist in maintaining your trailers suspension system in top working condition. Some of the items covered in this app include: Leaf Suspension, Air Suspension, Inspection, Pressure Protection Valve and Filter Maintenance, Recommended Inspections, Trouble Shooting, Pressure Protection Valve and Filter Maintenance.

  • Lendlease
  • The Cooperative
  • PG&E
  • Red Bull
  • Mirvac

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Take a peek inside the Trailer Safety Instructions: Suspension Systems Mobile App

Included Features

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Included Fields

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    Warning: Broken spring leaves, loose or missing U-bolts or other defective conditions are dangero...

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    Caution: Do not operate with broken spring leaves.

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    Check wear pads in hangers.

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    If they are thin, install new wear pads or the spring will damage the hanger itself.

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    After initial break-in (the first 1000 miles) and at least every 4 months after, all nuts and bol...

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    Rocker Bolt: 790 ft.

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    Radius Rod Bolt: 720 ft.

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    U-bolts (7/8-14): 470 ft.

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    U-Bolts (3/4-16): 420 ft.

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    Radius Rod Clamp Bolt: 85 ft.

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    Spring Retainer Bolt: 50 ft.

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    Warning: Follow torque requirements.

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    Check and replace worn bushings in the equalizer and in radius rod eye ends.

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    Caution: Do not overload axle.

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    An accurate Load reading vs.

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    Height Control Valve

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    Maintains constant ride height by pressurizing or exhausting air in the air springs to support th...

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    Must maintain air pressure higher than 75 PSIG (5 BARS) for air protection valve to operate.

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    In case of air spring failure on one side:

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    Completely deflate suspension and operate on the air spring’s internal rubber bumpers which will ...

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    To deflate or cut off air pressure:

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    Disconnect the Height Control Valve Linkage from link assemblies.

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    Rotate to the vertical down position.

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    Immediately move trailer CAUTIOUSLY to shop for repairs.

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    Be sure tires are not rubbing the underside of trailer or any other object.

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    Air control systems with a “Hand Control Valve” have a minimum and maximum adjusting nut which mu...

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    Care and Maintenance

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    Visually inspect valves regularly for proper clearance around them or damage to valve control arm...

  • ...and More!

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