1. Scope and Purpose--This SAE Standard pertains to off-road, self-propelled work machines as defined in categories one through five of SAE J1116. It is intended to provide engineers and designers with information in order that access openings provided in equipment and machinery for purposes of inspection, adjustment, and maintenance are made large enough for the intended function by the person in the field or shop.

1.1 Field of Application

1.1.1 This document specifies the minimum service access openings on off-road machinery for:

a. The hand b. The head c. The body d. Arm reach e. Two-handed reach

NOTE--Refer to SAE J185 for whole body access.

1.1.2 The larger openings for access with arctic clothing are for off-road equipment intended for use in cold environment.

1.1.3 Based on available anthropometric data, the recommended openings are the smallest that will accommodate 95% of the worldwide operator population. In most cases, openings larger than the recommended minimum will be useful and allow greater efficiency.