Jacks
All jacks including lever and ratchet jacks, screw jacks, and hydraulic jacks must have a stop indicator, and the stop limit must not be exceeded.
The manufacturer's load limit must be permanently marked in a prominent place on the jack, and the load limit must not be exceeded.
A jack should never be used to support a lifted load. Once the load has been lifted, it must immediately be blocked up.
Put a block under the base of the jack when the foundation is not firm, and place a block between the jack cap and load if the cap might slip.
Knowledge Check Choose the best answer for the question.
6-3. Where does the manufacturers load limit need to be placed on a jack?
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