Troubleshooting of coaches having LHB shell:
  • Provision of spare BP and FP air hoses at each end of Hybrid and LHB coaches.
  • These coaches are provided with two BP and two FP air hoses at both ends of the coach.
  • All the air hoses are coupled to the Air hoses of adjacent coaches and all the cut off angle cocks are kept in open condition.
  • In case of BP or  FP air hoses failure between two coaches, close the cut off angle cock of the affected air hose and a close the cut off angle cock opposite to the affected air hose coupled to It.
  • Conduct air pressure continuity test and proceed.
Working of Duronto Exp. in case of en-route BP/ FP metallic pipe failure :
FP failure:
  • Bring the flexible coupling pipe having FP palm end of one coach length, kept in Guard’s compartment I Pantry car or at any other location as mentioned on the BPC.
  • Lay the flexible coupling pipe from one end of the coach to the other end from outside I Inside of the affected coach. Secure/clamp the coupling pipe to prove not it from falling off / hanging.
  • Close the FP cut off angle cocks of the coach in the front end of the affected coach. Uncouple any one of FP air hoses.
  • Couple the palm end of the flexible pipe to the palm end of the uncoupled FP air hose of the coach at the front of the affected coach.
  • Close the FP rut off angle cocks of the coach in the rear end of the affected coach. Uncouple any one of FP air hoses.
  • Couple the palm end of the flexible pipe to the palm end of the uncoupled FP air hose of the coach at the rear the affected coach.
  • First, open the FP cut off angle cock of the coach at the rear and then open the FP rut off angle cock of the coach at the front of the affected coach.Isolate the brake system of the affected coach.
  • Ensure that brakes are released. Conduct air pressure continuity test Work the train at the restricted speed of 60 km/ hr in case of Hybrid coach (i.e. coach having LHB shell and ICF bogle) and at prescribed speed In case of LHB coach with RAT bogie
  • BP failure:

Bring the flexible coupling pipe having BP palm end of one coach length, kept in Guard’s compartment / Pantry car or at any other location as mentioned on the BPC. Lay the flexible coupling pipe from one end of the coach to the other end from outside / inside of the affected coach. Serure / clamp the coupling pipe to prevent it from falling off / hanging.

Close the BP cut off angle rocks of the coach in the front end of the affected coach. Uncouple any one of BP air hoses. Couple the palm end of the flexible pipe to the palm end of the uncoupled BPan air hose of the coach at the front of the affected coach.

Close the BP cut off angle rocks of the coach in the rear end of the affected coach.Uncouple any one of BP air hoses. Couple the palm end of the flexible pipe to the palm end of the uncoupled BP air hose of the coach at the rear of the affected coach.First, open the BP cut off a ng le cock of the coach at the rear and then open the FP cut off angle cock of the coach at the front of ‘the affected coach.

  • Manually release and isolate the brake system of the affected coach.
  • Conduct air pressure continuity test and work the train at prescribed speed.
Troubleshooting in case of BP-FP cut off age failure on the last coach (LHB coach FIAT Bogie):
  • Close rear Cut off angle rock of adjacent coach of the affected pipe loosens the checked nut fitted on ‘T’ joint and affected angle cock pipe.
  • Disconnect the affected pipe from ‘T’ pint by loosening holding clips.
  • Tighten the Dummy plug to that end.
Troubleshooting in case of BP-FP cut off angle cock failure on the last coach (Hybrid coach):
  • Close rear Cut off angle cod< of adjacent coach of the affected pipe.Loosen and remove both bolts.
  • Make gap between the block and affected a ng le cock pipe. 4 . Insert Dummy plate between the block and affected pipe flange.
  • Insert and tighten both bolts.