K 2500 Truck 4WD L6-292 4.8L (1985)
Cut Tang From Adjustment Gauge
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Cut gauge tang from body of the adjustment gauge to allow the valve assembly to rotate freely (Figure No. 3).
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Lower vehicle and test brakes.
PARTS INFORMATION
Model
P/N
Description
Code
Color
C20906
14061394
Gauge
A
Green
K20906
15548904
Gauge
E
Yellow
Brake Burnishing
On dry clean level roadway, accelerate to 55 mph, observe traffic following, and when it's clear:
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Apply brakes at a deceleration rate of 8 ft/sec/sec until vehicle speed is 25 mph. A decelerometer must be used to achieve the proper deceleration
rate.
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Repeat this procedure at 1 mile intervals 15 times.
Decelerometers are available from various sources, one of which is:
Ammco Tool Company 2100 Commonwealth Avenue
N.
Chicago, IL 60064