B400T/SS100T Brake and Sideslip Testers
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B400T Brake Tester
Measures Brake Balance on Multi-Axle Vehicles in 60 Seconds or Less!
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The Hunter B400T utilizes PC-based technology to measure braking forces for every brake on multi-axle vehicles such as tandem-axle tractors, tractors and semi-trailers, and two-axle vehicles, including passenger cars, buses and light trucks.
Transit Bus Video
Drive On and
Inspection Lane Video
Drive the vehicle onto plates and apply the brakes. Precision load cells automatically measure braking forces and dynamic weight. As each axle is tested, results are displayed on the color monitor. Results are automatically stored and can be printed out at the end of the test… all in 60 seconds or less!
Learn how the B400t Can Make you money.

Measures Weight Shift During Braking

The B400T takes into account the rear-to-front weight shift that occurs during braking, resulting in a more accurate evaluation of brake system condition and emergency stopping ability than roller-type testers.
Detailed Brake Analysis…
Brake Balance Results
Segments inside each wheel graphic indicate braking force as a percent of weight: the more segments, the higher brake strength. For an “ideal” vehicle, all segments would be the same length.

It’s easy to see which brakes are doing their job. Segments are color-coded green for pass, red for fail.

Arrows on each axle indicate side-to-side balance, with the green area indicating pull. Arrows below the wheels show adhesion utilization, (a measure of braking effectiveness) and are also color-coded for pass or fail.
Service Brake Results
This display provides raw brake force data. Linear graphs plot braking force and dynamic weight. The top graph shows the steer axle, and the bottom graph displays drive axle or tandem.

Color-coded bar graphs report the results. Green means the vehicle passes, red indicates a problem.
Static weighing is performed automatically as soon as the vehicle comes to rest. The display shows static weight for each wheel, total for each axle and total for vehicle, along with GAWR and GVWR. If an axle is overweight, the accompanying arrow will turn red.

All axle weight limits are user programmable to accommodate different vehicle platforms.

Static Weight Results
Conclusions
“Plain English” description of vehicle results are color-coded and may be printed.

Green “Passed” message is used for test results that are OK. Red or yellow coded messages are more detailed and indicate a potential problem or trouble spot.
…for a Wide Range of Vehicles
B400T Identifies Conditions Affecting Brake System Performance
Axle-to-Axle Imbalance
During braking, the stronger axle will lock up first, resulting in loss of steering control or jack-knifing.

Left-to-Right Imbalance
Can cause “pulling” to the stronger side during braking, resulting in a skid. Also detects single weak brakes.

Test Parking or Emergency Brakes
The B400T can test mechanical brakes on a straight truck and spring brakes on an air brake system.

Dynamic Weight and Deceleration
Load cells measure dynamic weight of the axles during braking, and the system calculates vehicle deceleration.

Static Weight
Works as a scale, with accuracy of +/- 2 percent.

Adhesion Utilization
Tells the technician if each brake is doing its fair share of the braking.

Can Test Fully Loaded Vehicles
SinSingle-, tandem- or triple-axle weight can be tested with a full load.
R611PM19-SI shown
(console must be purchased separately)
Utilizes State-of-the-Art Technology
  • 1-Console houses a powerful PC-based computer, providing instant test results.
  • 2-Results are displayed on the console’s 19” or 17” color monitor.
  • 3-Premium color printer is standard equipment, mounts in console.
  • 4-Sensor microprocessors digitally transfer information to and from the computer. Sensors have no moving parts, ensuring reliability.
  • 5-Measurement system is recessed into the shop floor to prevent distortion under the weight of heavy vehicles.
  • 6-Heavy-duty steel grating provides traction for proper testing, even when tires are slippery from inclement weather.
    • Optional Signal Light helps the operator stop correctly every time. Green light means tester is ready; light then goes from yellow to red indicating it is time to stop. (Part # 20-967-1)
    Results Can Be Printed Automatically
    Printouts serve as a guide for the technicians performing service and provide a permanent record of vehicle status. Results from each vehicle can be stored on disk for computer-based record systems to build an overall picture of fleet brake conditions.
    SS100T Sideslip Tester
    60-Second Alignment Check

    The Hunter SS100T measures sideslip, or tire scuff, on heavy-duty vehicles. Sideslip indicates incorrect toe settings on steer axles and excessive tandem scrub angles on tandem or multi-axle vehicles. Sideslip can also be caused by other mechanical problems.

    The system tests tandem-axle tractors; tractors and semi-trailers; tractor, semi-, full-trailer combinations; multi-axle vehicles; buses; and two-axle vehicles including passenger cars. Vehicles with up to 5 axles can be measured in a single test sequence.

    Green indicates passable results. Yellow (marginal) and red (fail) results indicate the alignment should be checked.

    The SS100T can easily be integrated into the B400T Heavy-Duty Brake Tester.
    Typical Configuration
    WinSI Console Specifications
    Standard Equipment with Console:
    Hardware:
    • Intel® Celeron® processor
    • DVD-ROM drive
    • Premium color printer
    Software:
    • WinSI Software operating in Windows® -based enviornment
    Accessories:
    • Cabinet with brochure pockets
    • Wireless Remote
    • Keyboard and Mouse
    Optional Accessories:
    • 20-1649-1 64 MB RAM Upgrade Kit
    Console Models:
    • R611PM19-SI Premium cabinet with 19” LCD display
    • R611M19-SI Mobile cabinet with 19” UVGA display
    • S611M-17-SI Mobile economy cabinet with 17” UVGA display
    B400T Series Plate Specifications
    Measurement Capacity:
    (If vehicle weight exceeds measurement capacity, test will be aborted)
    • Single-axle weight 40,000 lbs. (18,160 kg)
    • Tandem- or triple-axle weight 60,000 lbs. (27,240 kg)
    • Brake force per plate 15,000 lbs. (6,810 kg)
    Maximum Drive Over Capacity: (no braking on plates)
    (Exceeding capacity may permanently damage measurement system.)
    • Single-axle weight 55,000 lbs. (24,970 kg)
    • Tandem- or triple-axle weight 75,000 lbs. (34,050 kg)
    • Accuracy:
      Force, ± 1%, full scale
      Weight, ± 2%, full scale
    * For long wheelbase vehicles, up to 36” space may be inserted here. (No extra parts required.)
    SS100T Specifications

    Hunter's testing technology is currently in use at privately operated maintenance facilities and at State and U.S. Government facilities, including State of Connecticut Inspection Stations, Delaware State Inspection Lanes, New Jersey Inspection Lanes, Washington, D.C. Inspection Lanes, and U.S. Army facilities.
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