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Page Title:
Tes Method No. 14 - Service Brake |
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| MIL-C-53057(ME)
APPENDIX
TEST METHOD NO. 14
SERVICE BRAKE
1. TEST COURSE:
The test course shall be a dry, level, improved surface allowing
no penetration, with a grade not exceeding 1 percent.
2. TEST APPARATUS:
a. Linear measurement equipment.
b. Detonator, brake apparatus, with powder loads, or equivalent
apparatus.
c. Speed indicator.
3. TEST PROCEDURE:
a. Connect the detonator to be operated by a switch directly
connected to the brake pedal so that it is actuated during the
first 1/4 inch of pedal travel. The service brake shall be
used for this test.
b. Drive the crane over the test course. When the crane reaches
the maximum crane speed, apply the brakes. Measure the
distance between the point of brake pedal application and the
point of stoppage. Perform the test four times in forward (two
times in each direction) on the course. Observe whether the
front wheels lock or any wheel loses contact with the test
course. Measure the amount of fishtail.
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