Document ID: chunk:federal_register_of_legislation:F2024C00337:body:0:p28
Version: federal_register_of_legislation:F2024C00337
Segment Type: other
Provision Reference: 
Character Range: 65246–67771

of the gear, rigged over one side of the ship and hoisted to a level that:
(a) makes the angle between the runners close to but less than 120°; or
(b) a lesser angle mentioned in a drawing mentioned in Schedule 6,
      (5) After testing the crane or derrick:
(a) it must be examined by a competent person for damage or permanent deformity; and
(b) the overload limit switches must be reset.

5 Winches
      (1) If a derrick is fitted with a span gear winch, the winch must be tested while the derrick is supporting the proof load at its lowest working angle by making each sprocket subject to the resultant load.
      (2) After the proof load test, each winch must be tested with a load equal to the SWL suspended from the derrick head, and the derrick placed in various positions so that each winch is subjected to loading while having the maximum working length of rope layers on its drum.
      (3) After the proof load test, the following must be completed in sequence:
(a) a load equal to the SWL for the derrick must be hoisted;
(b) with the derrick slewed outboard to each side of the vessel and with the derrick amidships lowered at the normal lowering speed of the winch for 3 m, the winch must be braked sharply and the load brought to a halt;
(c) the load must be held stationary by the winch brake when the winch drive is switched off.

6 Cargo lifts and mechanical ramps
      (1) If a cargo lift or mechanical ramp is tested, the proof load must be at least the load mentioned in Table 2 for the lift or ramp.

 Table 2
SWL of lift or ramp (tonnes)  Proof load
≤ 20                          SWL × 1.25
> 20 and  ≤ 50                SWL + 5 tonnes
> 50                          SWL × 1.1

      (2) For testing, a cargo lift or mechanical ramp must be hoisted and lowered through its full range of travel with the proof load holding movable weights distributed in accordance with designed operating requirements.
      (3) After testing, a cargo lift or mechanical ramp and its accessory gear must be examined by a competent person for damage or permanent deformities.

7 Blocks, chains, rings, hooks, shackles, swivels, connecting plates, overhauling weights
      (1) The proof load for a single sheave block is 4 times the block's SWL.
      (2) For testing:
(a) the block must be suspended head down by a wire, or chain if a chain block, passing around its sheave; and
(b) a mass of 4 times the SWL must be secured to the head fitting of the fitting and lifted from the ground; and
(c) for a single sheave