This specification covers pneumatic powered chain and wire rope hoists.

Hoists are of the following classes and types as specified (see 6.2):

    Class 1 - Steel, conventional weight.
    Class 2 - Steel or aluminum alloy, light weight.

    Type A - Hook suspension.
    Type B - Plain trolley suspension.
    Type C - Geared trolley suspension, hand operated.
    Type D - Geared trolley suspension, pneumatic-motor operated.

Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, SEA 03R42, Naval Sea Systems Command, 2531 Jefferson Davis Hwy, Arlington, VA 22242-5160 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.