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| MIL-C-53057(ME)
APPENDIX
TEST METHOD NO. 15
BRAKE FADE
1. TEST COURSE:
The test course shall be a dry, improved surface allowing no
penetration, with grades not exceeding 1 percent.
2. TEST APPARATUS:
a. Speed indicator.
b. Decelerometer.
3. TEST PROCEDURE:
Drive the crane at 10 mph and apply the service brakes to
produce a deceleration rate of 8 fps per second, 1 fps per
second, until the crane has slowed to one half the initial
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speed. Immediately accelerate the crane at full throttle in
high gear until the travel speed reaches the initial speed.
Immediately repeat the test for a total of 35 cycles. On
completion of the 35th cycle, accelerate the crane at full
throttle in high gear to the initial speed and immediately
conduct a service brake stopping test using procedure in test
method No. 14. After the brakes have completely cooled,
perform the test consisting of 35 snubs and one measured stop
a second time. Make no adjustments or repairs between the two
test runs.
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