VIS-Check is an undercarriage diagnostic system that automates the inspection of brake, steering and suspension components. In 15 minutes, VIS-Check can verify peak vehicle performance or pinpoint safety and operating efficiency issues. VIS-Check identifies ride issues, reduces driver fatigue, measures brake performance, confirms vehicle safety, measures rolling resistance, improves fuel economy, trouble shoots undercarriage and extends tire life.

The VIS-Check Process

Step 1

Position the vehicle's front tires on the VIS-Check rollers. VIS-Check determines brake performance and measures:

• axle weight per wheel
• service brake air / hydraulic pressure
• wheel rolling resistance
• service brake release timing
• service brake application timing
• brake balance left to right

Step 2

Position the vehicle’s front tires on the simulator plates. A hydraulic jack lifts weight off the wheels. The road simulator motions then reveal undercarriage flaws, including:

• front axle steering linkage components
• engine and chassis mounts
• front axle suspension components
• wheel bearing movement

Step 3

Position the vehicle's rear tires on the VIS-Check rollers. VIS-Check determines brake performance and measures:

• axle weight per wheel
• service brake air / hydraulic pressure
• wheel rolling resistance
• service brake release timing
• service brake application timing
• brake balance left to right

Step 4

Position the vehicle’s rear tires on the simulator plates. A hydraulic jack lifts weight off the wheels. The road simulator motions then reveal undercarriage flaws, including:

• rear axle and suspension components
• driveline component integrity
• wheel bearing movement
• fifth wheel components
• chassis and body mounts

Step 5

Repeat the brake test and road simulation procedures for trailer or additional axles.

Step 6

Complete and print out the VIS-Check Safety and Efficiency report for all axles and wheel positions.

Since 1994 VIS has specialized in the implementation of workplace automation in heavy vehicle service shops.

By automating vehicle inspection and servicing, VIS customers achieve higher customer satisfaction and profitability from their existing resources.