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MIL-C-53057(ME)
APPENDIX
TEST METHOD NO. 13
HYDRAULIC LOCK-UP AND MANUAL OVERRIDE
1. TEST APPARATUS:
a. Linear measurement equipment.
b. Stopwatch.
2. TEST PROCEDURE:
a. Raise the boom to a 60 degree boom angle and maximum boom
extension with the rated load for that radius on the hook
block.
b. Shut off engine.
c. Attempt to do the following: Lower and retract the boom,
lower the load (using the hoist system), retract the boom and
outriggers, and swing the superstructure.
d. Energize manual override to lower the boom and load, retract
the boom and outriggers and swing the superstructure. Record
devices used, if any, method to accomplish override, and
distance and time to lower the load using the hoist system.
e. Repeat steps a, b, c, and d except measure the distance and
time required to retract the boom.
f. Repeat steps a, b, c, and d except measure the distance and
time required to lower the boom.
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