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| MIL-T-52843C
APPENDIX
TEST METHOD NO. 27
RAIN
1.
TEST APPARATUS:
a. Timing device.
b. Measuring device (U.S. Weather Bureau type preferred).
c. Spray fixture.
2.
TEST PROCEDURE:
a. Subject the forklift to a simulated rainfall of not less than
4 inches per hour. The simulated rainfall shall impinge on the
forklift at an angle of 45 degrees, 5 degrees, with a force
equivalent to a 30-mile-per-hour-wind. The simulated rainfall
shall disperse uniformly over the surfaces of the forklift.
b. Expose the top and left side of the forklift to the rain
described above for a period of 5 minutes with engine off.
With rain still flowing, start engine and allow engine to idle
for 2 minutes.
c. Repeat "b" with the top and front exposed.
d. Repeat "b" with top and right exposed.
e. Repeat "b" with top and rear exposed.
f. Stop the rainfall and allow the forklift to stand for not less
than 30 minutes with the engine off. Drain a small quantity of
fluid from each fluid reservoir (except cooling system) and
examine for presence of water.
g. Check electrical components, gages, cab (if furnished), and
the air cleaner for water entry and damage.
97
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