OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 34 Forestry

Section 521 Operator protective structures

SAE Recommended Practice J1084-APR80 (R2002), Operator Protective Structure Performance Criteria for Certain Forestry Equipment, establishes a consistent, repeatable means of evaluating operator protective structures (OPS) on skidders, grapple skidders, and crawlers used to harvest trees.

OPS are structures/enclosures that minimize the possibility of operator injury from hazards such as whipping saplings, branches, jill-poking (spear-like objects), and snapping winch lines. OPS must do this without adversely affecting operator visibility, comfort, and protection from other hazards. The Recommended Practice describes test procedures and the minimum performance criteria that the OPS must meet.

Depending on the type of equipment, it may also be equipped with a rollover protective structure (ROPS). See sections 270 and 271 of the OHS Code for information about ROPS.