Quantcast Teflon Hose - Medium Pressure (with Vacuum Service) - TM-5-4210-233-14P-1_285

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Hose Assembly Replacement.
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TM-5-4210-233-14P-1 Twin Agent 4x4 Firefighting Truck Model No. CM-KFT-B Manual
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Locating Air Leaks in Water/Foam Piping - TM-5-4210-233-14P-1_286
TM 5-4210-233-14&P-1 4-9.  GENERAL MAINTENANCE PROCEDURES - Continued (2) Teflon Hose - Medium Pressure (with Vacuum Service) (a) Carefully  examine  both  hose  end  fittings.  Discard  hose  end  fittings  if  any  sign  of  damage  is evident. Proceed to steps (c thru 1) following, to reassemble new hose assembly using new hose end fittings. (b) If  hose  end  fittings  are  to  be  reused,  remove  from  old  hose.  Clamp  socket  in  vise.    Unscrew nipple (in a counterclockwise direction) and remove. Slide the socket away from the hose end by tapping on flat surface. Using pliers, pull the sleeve from hose. NOTE It is recommended that new sleeves be used when old fitting is reused. (c) Wrap tefIon hose with masking tape (item 52, Appendix E) at cut-off area. Using a cut-off saw or a fine-tooth hacksaw, cut hose square to length. Remove all tape. Trim any extending wires flush with hose end, then remove hose material burrs. WARNING Death or serious injury could occur if compressed air is directed against  the  skin.  Do  not  use  compressed  air  for  cleaning  or drying  unless  the  pressure  is/has  been  reduced  to  30  psi  (2.11 kg/cm2) or less. When working with compressed air always use chip    guards,    eye    protection    and    other    personal    protective equipment. (d) Using compressed air, blow out shavings from hose bore. (e) Slip two sockets onto new hose. Ensure the sockets are back to back. (f) Push a sleeve over the end of the tube and under the wire braid by hand. Position sleeve in hose by  pushing  the  hose  against  a  flat  surface.  Ensure  the  tube  stock  butts  against  the  inside shoulder of the sleeve. (g) Set the sleeve barbs into the Teflon tube by installing the end of the sleeve and tube  over  the nipple and then work the hose bore over the nipple. (h) Lubricate the nipple and socket threads with hydraulic oil (item 28, Appendix E). (i) Clamp the nipple hex in a vise. Push the hose over the nipple using a twisting action until seated against nipple clamper. Push socket forward and thread onto nipple hand tight. (j) Invert hose assembly and clamp socket in vise. Tighten nipple in a clockwise direction until 1/32 in. (.8 mm) clearance between nipple and socket is achieved. Further tightening is acceptable if socket and nipple hexes are to be aligned. 4-156

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