Prior to initial use all new and altered cranes shall be tested to insure compliance with this section including the following functions:
Hoisting and lowering.
Limit switches, locking and safety devices.
The trip setting of hoist limit switches shall be determined by tests with an empty hook traveling in increasing speeds up to the maximum speed. The actuating mechanism of the limit switch shall be located so that it will trip the switch, under all conditions, in sufficient time to prevent contact of the hook or hook block with any part of the trolley.