TM 1-1520-240-104-3-12 Figure 4-3-10. Hoist Control Valve and HoistControl Shutoff Valve4-3-4. Winching Accessories.Accessories are provided for winching and hoisting op-erations. Employment of these accessories is deter-mined by winch usage. A compartment bag is attachedto the bulkhead wall above the winch for stowage ofwinching accessories.a.Cable Pulleys. A sufficient number of pulleys areprovided to permit routing the winch cable for winchingand hoisting operations. The pulleys are equipped withsnap-lock fasteners for attachment to tiedown fittings orshackles as required.b.Cable Hook. A 2-ton-capacity removable hook isprovided for use in winching and hoisting operations.Extending from the hook is a length of 1/4 inch cable,equipped with a metal ball which locks into a quick-dis-connect device that is used for attaching the hook to thecable. The full-swiveling hook contains a spring snaplock to prevent opening of the hook and accidental lossof cargo.c.Quick-Disconnect Device. The quick-discon-nect device permits rapid connecting and disconnectingof winch cable hooks. The device consists of a shortlength of steel with socket cavities at each end. Thesockets are enclosed by spring-loaded rings that restagainst flared rims in either edge of the device. The lock-rings are depressed to admit the ball ends of the cablesinto the sockets and snap into place when released, se-curing the ball ends of the cables in a positive connection.A guard is supplied with the quick-disconnect device.When installed, it prevents the hoist operator from inad-vertently operating the quick-disconnect device whenassisting a rescued person into the helicopter.d.Cable cutter. In hoisting operations, there is al-ways a possibility that the cable hook might snag, result-ing in critical strain on the hoisting system and restrictionof helicopter mobility. The cable cutter provides a meansof quickly severing the snagged hook by cutting thecable. The cable cutter consists of a housing, two follow-er rollers that permit free travel of cable through the hous-ing, a cutting shell, a ballistic cartridge, and a threadedreceptacle for electrical connector. The cutter housing issplit to allow reeving the cable and is bolted to a pulleybracket through two holes in the housing. The cable cut-ter is armed by coupling an arming device to the recep-tacle in the cutter housing and plugging the device intothe receptacle above the utility hatch marked CABLECUTTER. The cable cutter cartridge is to be checked fortotal time prior to any hoisting or rescue operations. Thecartridge should not be used after 8 years from date ofmanufacture and should also be replaced after 1 year ofinstalled service life. Cartridges are considered over agewhen either limit is exceeded. WARNINGIf personnel are in the cargo compartmentwhen a load is jettisoned, make sure thatthey remain aft of the rescue hatch andface away from the cable cutter. The hoistcable can whip forward when it is cut andparticles can be ejected from the cablecutter.
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
