TM 9-2320-366-34-3
a. Static Overload Test.
NOTE
Static overload test is performed with a test
load of 110% of crane rated load on Range
Diagram for this boom extension and radius.
The overload protection system should
prevent lifting of this test weight.
(1) Extend boom (1) to 14 feet, 0 inches.
(2) Raise boom (1) approximately 60 for a load radius of
7 feet, 0 inches.
(3) Lower crane hook (2) with hoist (3).
(4) Connect 5500 lb test weight (4) to hook (2).
NOTE
If test weight is lifted refer to troubleshooting
to determine failure of overload protection
system.
(5) Attempt to raise test weight (4) with hoist (3).
(6) Place crane power switch (5) to OFF.
NOTE
Hold manual override depressed until test
weight is raised.
(7) Depress manual override (6).
(8) Raise test weight (4) approximately six inches with hoist
(3).
(9) Release manual override (6).
NOTE
Test weight will remain suspended.
(10) Depress manual override (6).
(11) Lower test weight (4) to ground with hoist (3).
(12) Release manual override (6).
(13) Disconnect 5500 lb test weight (4) from hook (2).
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