TM 9-2320-366-34-3
16-31. M1084/M1086 CRANE LOAD TEST (CONT)
b. Static Overload Proof Test.
NOTE
Static overload proof test is performed with a
test load of 125% 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) Connect 6250 lb test weight (1) to hook (2).
NOTE
If test weight is lifted refer to troubleshooting
to determine failure of overload protection
system.
(2) Attempt to raise test weight (1) with hoist (3).
NOTE
Hold manual override depressed until test
weight is raised.
(3) Depress manual override (4).
(4) Raise test weight (1) approximately 18 inches with hoist
(3).
(5) Release manual override (4).
NOTE
Test weight will remain suspended.
(6) Depress manual override (4).
(7) Lower test weight (1) to ground with hoist (3).
(8) Disconnect 6250 lb test weight (1) from hook (2).
(9) Place crane power switch (5) to off.
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