Transcript Driver Inspection Information ()

Bendix ADB 22X Air Disc Brakes
™
®
Vehicle Pre-Trip Training & Inspection
“Service Series”
ADB22X Inspection Process
included in BW7356
& in the Service Data Sheet BW7308
Bendix® ADB22X™ Air Disc Brake
Pre Trip Inspection Brake Check
All CDL Requirements for Air Braked Vehicles
Remain Consistent with the Introduction of
Air Disc Brakes
•
•
•
•
•
Parking Brake Check
Test Air Leakage Rate (Static check)
Test Air Brake System for Leaks
Test Low Pressure Warning Alarm and/or Signal
Check That the Spring Brakes Come on
Automatically.
• Check Rate of Air Pressure Buildup
Inspect Service Brakes
Bendix® ADB22X™ Air Disc Brake
Basic Concepts
&
Functional Understanding
Caliper
Lever
Tappets
Pad Retainer
Rotor
Brake Chamber
Roller Bearings
Bridge
Pads
Return Spring
Bendix® ADB22X™ Air Disc Brake
Component Identification
&
Fastener Inspection
Look for any Loose fasteners.
Identify signs such as movement, rust streaks, etc..
Bendix® ADB22X™ Air Disc Brake
Section 5.3.2* – During Step 5 Walk-around
*Ohio Commercial Drivers License Manual
Accessibility may vary by vehicle configuration
• Park on level ground
and chock the wheels
to prevent the vehicle
from moving.
• Release the Parking
Brake
• Check Brake
Adjustment
ADB22X™ Air Disc Brake
Adjustment Inspection
Caliper free movement
0.024” - 0.043”
Bendix® ADB22X™ Air Disc Brake
*Ohio Commercial Drivers License Manual
* “……….brakes equipped with automatic adjusters are found to be out of adjustment, the driver
must take the vehicle to a repair facility as soon as possible to have the problem corrected.
The manual adjustment of an automatic adjuster should only be done to allow safe
transportation of vehicle to the repair facility………”
ADB22X™ Air Disc Brake
Adjustment
• Remove the adjuster
cover
• Identify that a
“shear adapter” is
installed
–
–
–
–
Shear Adapter is designed to protect
the caliper from over-torque
If over-torque occurs, the shear adapter
will fail (shear)
Once replaced, the caliper can then be
properly adjusted
If two shear adapters fail consecutively,
refer to the SD Sheet, BW7308 for
trouble shooting procedure
Adjuster cover
Shear Adapter
ADB22X™ Air Disc Brake
Adjustment
• Using a 10mm boxed
end wrench or 6pt
socket
• Rotate the shear
adapter clockwise
until brakes are tight
• Rotate shear adapter
counter clockwise
TWO (2) clicks
Shear Adapter
ADB22X™ Air Disc Brake
Adjustment
• Leave the
“shear adapter”
installed
• Reinstall the adjuster
cover
• Verify that the
adjuster cover is
properly installed
ADB22X™ Air Disc Brake
Pad Wear Inspection
Visual Inspection
Disc Pad
Wear Indicators
• Cast indicators
located on caliper
and carrier
• Alignment Indicates
Pad Replacement is
Required
ADB22X™ Air Disc Brake
Pad Wear Inspection
Visual Inspection
Disc Pad
Wear Indicators
• Cast indicators
located on caliper
and carrier
• Alignment Indicates
Pad Replacement is
Required
ADB22X™ Air Disc Brake
Pad Wear Inspection
Visual Inspection
Disc Pad
Wear Indicators
• Cast indicators
located on caliper
and carrier
• Alignment Indicates
Pad Replacement is
Required
ADB22X™ Air Disc Brake
Caliper Sealing Integrity
Visual Inspection
Boot & Seal Inspection
ADB22X™ Air Disc Brake
Caliper Sealing Integrity
Visual Inspection
Boot & Seal Inspection
• Adjuster Cover
ADB22X™ Air Disc Brake
Caliper Sealing Integrity
Visual Inspection
Boot & Seal Inspection
• Adjuster Cover
• Guide Pin Caps (2)
ADB22X™ Air Disc Brake
Caliper Sealing Integrity
Visual Inspection
Boot & Seal Inspection
• Adjuster Cover
• Guide Pin Caps (2)
• Guide Pin Boots (2)
ADB22X™ Air Disc Brake
Rotor Visual Inspection
Visual Inspection
Rotor Braking Surface
ADB22X™ Air Disc Brake
Rotor Visual Inspection
Visual Inspection
Rotor Braking Surface
• Minor heat check
will not de-grade
braking performance
ADB22X™ Air Disc Brake
Rotor Visual Inspection
Visual Inspection
Visual Inspection
Rotor Braking Surface
• Minor heat check
will not de-grade
braking performance
• Cracks WILL
significantly impact
braking performance
and brake life
• See ADB22X Service
Data Sheet for detailed
explanations
If Cracks are found, the driver must take the vehicle to a repair
facility as soon as possible to have the problem corrected.
Bendix® ADB22X™ Air Disc Brake
For complete and detailed
instructions, refer to the
Bendix® ADB 22X™ Air
Disc Brake Service
Data sheet BW7308
and View the Service
Series DVD BW7356
Bendix® Brand Foundation Brake Products
From
Bendix Spicer Foundation Brake LLC
Questions and Answers
Bendix® ADB22X™ Air Disc Brake
Thank You