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Hydraulic Hoses Tubes and Fittings - TM-5-4210-233-14P-1_283
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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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Teflon Hose - Medium Pressure (with Vacuum Service) - TM-5-4210-233-14P-1_285
TM 5-4210-23314&P-1 4-9.  GENERAL MAINTENANCE PROCEDURES - Continued e.  Hose Assembly Replacement. There are two different styles of hose assemblies. Described below are procedures for hose replacement. NOTE If original hose route cannot be followed at time of replacement, find alternative route and measure for new hose length. (1) General Purpose - High Temperature; Hydraulic, Air and Fuel Application. (a) Carefully examine both hose end fittings.  Discard  hose  end  fittings  if  any  signs  of  damage  are evident. Proceed to steps (d thru j), following, to assemble new hose assembly using new hose end fittings. (b) If hose end fittings are to be reused, remove from old hose.  Clamp socket in a vise. Remove nipple from hose and socket by unscrewing in a counterclockwise direction. (c) Once nipple is removed, invert hose and reclamp socket in vise. Unscrew hose from socket by turning hose in a clockwise direction. If hose is excessively long, socket removal is possible by clamping hose in vise and unscrewing socket from hose in clockwise direction. (d) Using a cut-off saw or a fine tooth hacksaw cut new hose square to length. 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. (e) Using compressed air, blow out shavings from hose bore. (f) Clamp  socket  in  vise.  Thread  new  hose  into  socket  in  a  counterclockwise  direction  until  it bottoms out. Then back out hose 1/4 turn. (g) Using hydraulic oil (item 28, Appendix E), liberally lubricate nipple threads and inside of hose. (h) Insert  nipple  into  hose  and  socket  and  tighten  in  a  clockwise  direction.  Leave  1/32  in.  (.8  mm) between nipple hex and socket. (i)    To  prevent  any  contamination  from  new  hose  assembly,  blow  out  hose  assembly  using  compressed  air. Rinse  inside  of  hose  with  hot  water.  Do  not  allow  water  temperature  to  exceed  180  deg.  F  (82  deg.  C). Using compressed air, blow out all water from hose assembly. (j)  If hose assembly is not going to be installed immediately after installing fittings, cap both ends to keep hose clean. 4-155

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