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About the trailer
• Service brakes and parking brakes must be inspected by the
driver. Do not operate a trailer with defective brakes. Inspect the
following before and after operation.
- Check if the chamber plastic end cap is placed properly to
prevent dirt and contaminants.
- Check if any of the components of the brake system are
defective, missing, damaged or corroded.
- If a defect is suspected, place the vehicle out of service until a
qualified service technician repairs it.
Slack adjuster
The automatic slack adjusters installed on the trailer maintain a
constant brake shoe to drum clearance that ensures constant
brake shoe force.
Brake chambers
All trailer brake chambers perform both service and parking brake
functions. The service brake stops the trailer after receiving a
signal from the tractor. The parking brake is applied when you
apply the parking brake. The parking brake is also applied
automatically when the air supply is unintentionally lost. To move
the trailer before air pressure can be restored, such as during
routine maintenance or in emergency situations, the mechanical
spring brakes can be manually backed off and released using the
cage bolt.
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