Harrington Hoists and Cranes Static/Dynamic Hoist Load Tester - Manual (Page 12)

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Step 6: Operate the hoist in accordance with proper load lifting procedures. Monitor the
pressure gauge until the desired pressure is reached.
Step 7: Leave the hoist suspended for 30 to 60 seconds and observe the gauge to be sure
the pressure doesn't fluctuate. This will ensure that the hoist load brake is
functioning properly.
Step 8: Lower and remove the hoist from the tester. The test is now complete.
Maximum cylinder stroke is 8". Do not try to exceed this value. Hoist and
test stand overload will occur.
Do not overload the hoist tester. Overloading will shorten the life of the unit
or cause a possible accident and will void the warranty.
If gauge pressure reading exceeds 1800 psi, STOP OPERATION...
the hoist tester has reached its limit.
Do not switch links from 5 ton capacity to 10 ton capacity.
Do not overload the hoist beyond 125% of its rated capacity.
Anytime the cylinder lines are disconnected, the hoist tester MUST
BE RECALIBRATED.
Calibration of the hoist load tester is recommended on an annual
basis.