Structure of the Winch Internal mechanisms of the Winch are protected by the housing. Metal parts are zinc-plated or stainless steel to resist corrosion. The load end of the line is terminated with a self-locking swivel snaphook which requires two separate and distinct manipulations to unlock and open the gate. When released, the gate will automatically close and lock. The winch has a level wind mechanism which helps the guide line to lay and wrap tightly around the drum. 2.3 Function of the Winch The winch is operated with the standard manual crank handle shown in figure 1. To extract line or lower a load, rotate the handle in a counterclockwise direction. To retract line or lift a load, rotate the handle in a clockwise direction. To suspend a load, release the handle. A brake in the drive mechanism inhibits the drum from free wheeling. The brake operates even when the manual force is removed. The winch is designed for use with the MSA Workman Tripod. See
The winch serves as the primary liftinglowering device for systems which use the tripod to position equipment for confined space entry above the area to be
accessed. The winch mounts to the side of the tripod leg. This position permits operation of the winch by a surface attendant positioned away from the confined space access point, maximizes the usable space in the interior of the tripod and
increases stability by lowering the tripod’s center of gravity.
When installed on the Workman Tripod, a pulley and a carabiner are required for the winch line on the outside of the
tripod head. This permits full use of the interior headroom of the tripod.
2.4 Accessories and Companion Products
2.5 Markings and Labels
All labels must be present, legible and securely attached.
Label locations
For the spanish people->
Cabestrante manual
Cabestrante electrico
Cabestrante 4x4
