Vehicle Inspection System Check

The Vehicle Inspection System (VIS) Check is an undercarriage diagnostic tool designed to inspect brake, steering and suspension components.

VIS Check can quickly detect the following:

Brakes

Incorrect brake adjustment
Compressor performance issues
Air distribution problems
Faulty slack adjusters
Glazed or contaminated linings
Damaged S cam components
Drum out of round conditions
Broken parking brake springs
Unbalanced braking force
Weak braking force

Steering & Suspension

Worn tie rod ends and king pins
Spring pins, shackles and hangers
Worn bushings
Shock absorbers
Loose U bolts
Air bag integrity

Frame & Chassis

Weight distribution
Axle load balance
Worn engine mounts
Damaged cab mounts

Other

Detects high rolling resistance
Finds loose wheel bearings
Drive train problems
Worn yokes/center bearings
Loose exhaust mounts

In addition to detecting undercarriage concerns, the VIS Check is a performance based brake test combined with a dynamic road simulator. The brake tester measures braking force produced by each wheel on a vehicle. The VIS Check then produces a report on brake performance providing a pass or fail rating utilizing DOT specifications.

The road simulator allows technicians to view steering and suspension components under harsh operating conditions. Other undetectable mechanical issues are easily spotted on the VIS Check.

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