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Brake chambers and applies force to the push rod transferring the force to the SCam or air disc brake. Do not use this card test to diagnose compressor oil passing issues.
Use only the Bendix Air System Inspection Cup BASIC test and the methods described in this guide for.
Air brake troubleshooting. AIR BRAKE SYSTEM TROUBLESHOOTING 1 Before replacing any valve with a new or remanufactured valve be sure to blow the air lines out either using the vehicles own air supply or shop air. Dirt is the greatest cause of premature air valve failure. 21 rows AIR BRAKE SYSTEM TROUBLESHOOTING 1 Before replacing any valve with a new or remanufactured.
Assessing Air Brake System Air Leakage BW2327 - CD WHEELS CHOCKED FULL PRESSURE TRACTOR PARKING BRAKES RELEASED YELLOW BUTTON IN TRAILER CHARGED RED BUTTON IN þ OK þ Not OK 1. Allow the air pressure to stabilize for at least 1 minute. Observe the dash gauge pressures for 2 minutes and note any pressure drop.
Air Brake Charging System Troubleshooting How to use this guide. 10 Oil Test Card Results Not a valid test. Discontinue using this test.
Do not use this card test to diagnose compressor oil passing issues. They are subjective and error prone. Use only the Bendix Air System Inspection Cup BASIC test and the methods described in this guide for.
Answer Remove service line from spring brake to see if air is leaking from service port if so replace the spring brake check inlet valve in relay valve for leak check reservoir side of valve for contamination repair or replace. Problem Leaks at exhaust port with service brakes applied. Repair replace or adjust the governor as necessary after ensuring the compressor unloader mechanism is operating correctly.
If the low pressure warning occurs below 60 psi. Check the dash gauge with test gauge known to be accurate. Repair or replace the faulty low pressure indicator switch.
Visually inspect air brake lines especially if you notice a slow buildup of air pressure. These lines connect the air brake system together and can crack chafe or become loose due to vibrations all of which can cause air leaks. The line from the compressor to the dryer or hot line can become plugged with carbon deposits.
Brake chambers and applies force to the push rod transferring the force to the SCam or air disc brake. See page 19 for more about foundation brakes Frictional forces slow the wheels and the vehicle comes to a stop. When the brakes are released the air in the brake chambers is able to be quickly rel eased and enable the vehicle to drive away.
Low brake fluid. Air in brake fluid. Fluid leak in system.
The first thing to check with any brake issue is the fluid level and condition in the master cylinder reservoir. When you are troubleshooting first make a visual inspection and check all the obvious things-open air drain cocks off-track compressor belt broken air lines and so forth. Next perform an air buildup test and an air leakage test.
- typical air brake system. Troubleshooting Guide HOW TO USE THIS CHART The purpose of the chart is to help you solve a specific problem in the pneumatic portion of a trailer air brake system with the assumption the foundation brake components and tractor pneumatics are in good repair. Identify which system is malfunctioning.
Refer to how to check your system. The Air Brake NanoLeak Finder quickly tests and precisely diagnoses high pressure Air Brake Air Suspension and Air Powered Accessory System Leaks with 100. ADDITIONAL AIR-BRAKE SYSTEM INFORMATION Bendix Audiovisual Programs Bendix offers several audiovisual programs on many Bendix air-brake devices and systems.
These moderately priced programs are available in 35 mm slide VHS and European PAL. Formats and describe the operation and troubleshooting of air-brake components and systems. Troubleshooting Transit Bus Air Systems.
This recommended practice provides guidelines for troubleshooting transit bus air systems including basic design criteria preventive maintenance and common problems. Accessory system air system emergency brake parking brake service brake system supply system valves. Air Supply Secondary Service Primary Service Parking Anti-Compounding Emergency Prior to 3198 Emergency After 3198 TractorTrailer Systems Tractor Parking Trailer Air Supply Trailer Control For additional information call ArvinMeritors Customer Service Center at 800-535-5560.
Air Brake System Color Key COLOR KEY SUPPLY SECONDARY PRIMARY.