Part 9: Mobile cranes

9.1 General

Mobile cranes (both new and second-hand) require design verification by an inspection body in accordance with the PECPR Regulations and parts 2 and 5 of this code, prior to certification for use within New Zealand.

Parts 3, 4, 6, 7 and 8 of this code also apply.

A supplier, manufacturer or controller of such a mobile crane shall provide this documentation, as in part 5.2, to the inspection body carrying out the design verification.

1. For full details of the safe load indicators, radius indicators and so on, that are required on various crane types, refer to Appendix A.

9.2 Additional requirements

In addition to the requirements in part 9.1 and part 3: Operational requirements for controllers, the following are also required:

1. The stability of a crane under static conditions shall be such that the rated capacity is not greater than the appropriate percentage of the tipping load that has to be applied to tip the crane over. This is 75% of the tipping load for all cranes except those built to the Japanese standards which quote 78%. For free on wheels it is to be not more than 66%.
2. The rope safety factor shall be a minimum of 4.5 for running ropes, 3.5 for standing ropes, 3 for erection ropes and the manufacturer’s recommended rope types and construction for each use.
3. All rigging and boom options the crane is fitted for shall be shown in the cab.
4. An “anti-two-block” warning device shall be fitted to cranes in accordance with Appendix A.: Safe load indicators.
5. Annual visual and operational inspections by an equipment inspector are required to assess the general condition for continued safe operation and certification. This should cover (but is not necessarily limited to):
   1. crane documentation including certified rating sheets marked with the crane unique identifier and serial number
   2. maintenance and repair records including any new rope hook and hook block certificates
   3. operation of crane to be demonstrated
   4. general condition of crane structure including fastenings, chassis, outriggers, including where applicable, any interlocking system, and boom and fly jibs
   5. coatings condition (paint, etc.), markings and labels
   6. general wear and tear
   7. conditions of welded joints
   8. level indicator (if fitted)
   9. tracks/tyres
   10. slew ring/king post
   11. boom arrestors and backstops
   12. bridle
   13. counterweight/ballast
   14. sheaves and bearings
   15. hoist, luffing and slew brakes including brake linings
   16. safety guarding
   17. drums and locking pawls
   18. gearing
   19. hydraulic system including rams and attachments
   20. anti-two-block and other limit switches
   21. test of safe load indicator with test load to confirm all functions are within manufacturer’s recommendations
   22. condition of hoist, luffing and pendant ropes
   23. rope anchors and dead ends
   24. hooks, hook blocks and swivel bearings
   25. lifting spreaders when used in place of a hook
   26. cab condition and controls (including safety latches).

Further detailed in-depth inspections may be required depending on the results of visual inspection.

Additional items may be identified by the crane owner for inspection.

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