TM  55-1520-240-T 14-1.4   CARGO/RESCUE   WINCH   SYSTEM   OPERATIONAL   CHECK (Continued) TASK RESULT NOTE Keep tension on wire rope (cable) when reeling cable. Cable will reel evenly and will not snarl. 1. Check  that  HOIST  CONT  and  HOIST CABLE CUTTER circuit breakers (1 and 2) are closed. 2. Check that winch shift lever (3) is set to 3. 4. 5. 6. 7. 8. 9. 10. RESCUE. Hold pressure line (5) to shutoff valve (6). Set HOIST MASTER switch (7) to PILOT. Hold pressure line (8) to brake on winch (4). Push in and turn pushbutton (9) on shutoff valve (6). Release pushbutton. Remove Iockwire from knob (10) on winch control valve (11). Turn knob (10) in one direction. Reel out enough wire rope (cable) (12) to rig. Release knob. Have helper keap slight dragon ca- ble. Helper must wear gloves. Rig winch (4) for rescue mode (TM 56- 1620-240-10). Turn and release pushbutton (9). Turn knob (10) in any direction. Release knob. Turn HOIST control (13) to OUT. Release control to OFF when cable (12) stops reeling out . NOTE With cable reeled out, an inspection for broken strands or definite bends can be performed. If either circuit breaker (1 or 2) is open, close it. If HOIST CONT circuit breaker (1) opens again, go to task  14-1.5.  If  HOIST  CABLE  CUTTER  circuit breaker (2) opens again, go to task 14-1.6. If lever (3) not at RESCUE, set it to RESCUE. If lever can not be set to RESCUE, replace winch (4), Pressure surge should be felt on pressure line (5). If not, go to task 7-2.4. Pressure surge should be felt on pressure line (8). If not, replace shutoff valve (6). Push button (9) shall remain locked when released. If it comes out, replace shutoff valve (6). Cable (12) shall reel off winch (4), if it does not, turn knob (10) in opposite direction. If cable still does not reel off winch, replace winch, Pushbutton (9) shall come out. If it does not, re- place shutoff valve (6). Winch (4) shall not operate. If it does, replace shutoff valve (6). Winch (4) shall reel out cable (12) within  90 seconds and stop when 2-1/2 wraps of first layer of cable remain on winch drum. If winch does not reel  out  cable,  go  to  task  14-1.7.  If  cable  takes longer than 90 seconds to reel out, replace winch. If winch does not stop when 2-1/2 wraps remain on  drum,  adjust  winch  out-limit  switch,  TM  55- 1520-240-23.  If  switch  can  not  be  adjusted,  re- place winch. 14-1.4 TASK RESULT Do not allow cable end to reel in and jam in a pulley. Damage to winch, pulley, or airframe can oc- cur. 11. Turn HOIST control (13) to IN. Release control to OFF when cable (12) stops reeling in. Have helper keep slight drag on cable. Helper must wear gloves. Winch  (4)  shall  reel  in  cable  (12)  wlthin  90 seconds and stop automatically when 26 to 26-1/2  feet  of  cable  remain  extended.  Cable length is measured from sta 120 passageway bulkhead to cable ball end. If winch does not reel in cable, go to task 14-1.8. If cable takes longer than 90 seconds to reel in, or cable binds or spools unevenly, replace winch. If winch stops too soon ortoo   late,   (26   -   26-1/2   feet   of   cable   not ?d), adjust rescue in-limit switch, TM 55- 1520-240-23.  If  switch  can  not  be  adjusted,  re- place winch, GO TO NEXT PAGE 14-7