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| MIL-T-52843C
APPENDIX
TEST METHOD NO. 18
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 forklift with rated load at the minimum specified
speed and apply the service brakes to produce a deceleration
rate of 8 fps per second, 1 fps per second, until the forklift
has slowed to one-half the
initial speed. Immediately
accelerate the forklift 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 forklift at full throttle in high gear to the
initial speed and immediately conduct a service brake stopping
test using procedure in test method No. 17. 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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