BENDIX BW1555 User Manual

AIR PRESSURE BALANCE &

THRESHOLD PRESSURE TESTS

GENERAL INSTRUCTIONS:

1. Number the axle and each brake on the axle of the vehicle being tested using the illustration.

2. All testing should be performed using both increasing (INC) and decreasing (DEC) air pres-

sure and using our instructions.

3. When performing the Air Brake Pressure Balance Tests the pressure from only one chamber

of a tandem can be used when the same relay valve delivers pressure directly to all four

chambers on the tandem.

4. Record test results in the charts provided.

Air
Pressure

Balance

and

Threshold

Pressure

Tests

Date:

________________________

Test

Conducted

By:
____________

Vehicle

No:
___________________

Axle No. 1

2 __

__ __ __ __

__ __

Brake No. 1

3 __

__ __ __ __

__ __

Axle

Brake No. 2

4 __

__ __ __ __

__ __

Tractor

Dolly

Trailer

Vehicle

Manufacturer

Number

Model, Year

Comments

Tractor
#1 Trailer
Conv. Dolly
#2 Trailer
Conv. Dolly
#3 Trailer

VEHICLE DATA