Revised schedule of maintenance of Air Brake System for LHB Coaches.

C & W - एल एच बी कोच दुरन्तो एक्सप्रेस में ब्रेक पाइप मेटलिक पाइप फटने / क्षतिग्रस्त होने पर कोच बायपास करने के बाद गाड़ी चलाने की विधि

एल एच बी (LHB) कोच दुरंतो एक्स्प्रेश में ब्रेक पाइप, मेटलिक पाइप फटने / क्षतिग्रस्त होने पर कोच बायपास करने के बाद गाड़ी चलाने की विधिः-

1. गाड़ी के गार्ड कम्पार्टमेंट/पैंट्री कार या बी.पी.सी. में दर्शाये हुए कोच से बी.पी. पाम एन्ड वाले फ्लेक्सिबल पाइप लाएं।

2. प्रभावित कोच के अंदर या बाहर से फ्लेक्सिबल पाइप को कोच एक किनारे से दुसरे किनारे तक फैलाकर बांध दें ताकि पाइप गिर न जाए।

3- प्रभावित कोच और इसके अगले कोच के बीच के सभी बी.पी. एंगल कॉक बंद करें तथा ठीक इसी तरह प्रभावित कोच और इसके पिछले कोच के बीच के सभी बी.पी. एंगल कॉक बंद करें।

C & W - Air Brake Testing Procedure for LHB Coaches

 Air Brake Testing Procedure for LHB Coaches: 

On arrival of the rake on pit line, completely drain the AR tank (125 litres & 75 litres) of all the coaches by opening the drain cock, to remove the water in air. 

Initially, couple the BP hose of the test rig with the BP hose of the rake & then charge the BP pressure to 5.0 kg/cm2 . Keep the FP angle cock of both end power cars in close position. Check the FP gauge fitted in the power car, if the gauge does not show any pressure, the NRV of all the coaches are ok. If, FP gauge shows any pressure, the NRV of some coach in the rake is defective. In this condition, check the rake for NRV defective by taking the coaches in parts. NRV found defective in particular coach should be replaced. 

C & W - Salient Features LHB – Coaches

Salient Features of LHB – Coaches

Important features of LHB coaches which make them superior to existing ICF design coaches are summarized below. 

i. Coach Body - LHB coach is light weight construction made from low corrosive stainless steel. The weight of the coach is about 10 percent less as compared to the conventional coach resulting into lower haulage cost. Each vehicle is equipped with complete pantry to store hot meals and cold beverages except LWLRRM, LWFAC, SCN, GS etc. The modular construction and the integration of lights into interior ceiling and luggage racks are characteristics features of modern interior design. Windows are specious and modern equipment have been provided which make the coach far superior esthetically. 

C & W - Safety Related Provisions & Advantage Of LHB Coaches

 Safety Related Provisions

1. Four emergency exit windows for faster passenger evacuation during emergencies.

2. Wider vestibule designs for smooth inter coach movement with luggage.

3. Convenient to operate emergency alarm pull operation and Fire - retardant furnishing controls the spreading of fire and prevents higher damages.

C & W - Wheel and Axles of LHB Coach

 Wheel and Axles 

• Two brake disks (4), diameter 640 mm and width 110 mm. 
• Two wheel disc of tread dia 915 (New), 845 (worn) 

• Dynamic balancing 320rpm 

C & W - DESIGN FEATURES & COACHES OF LHB COACH SHELL

 

DESIGN FEATURES & COACHES OF LHB COACH SHELL

 DESIGN FEATURES OF LHB COACH SHELL 

3.3 COACH SHELL OF LHB COACHES

The entire shell is made from stainless steel and low corrosion steel. All the structural elements with section thickness above 5mm and more are made from Corten steel. Trough floor and roof panels are made from Austenitic stainless steel. Other structural members and side members and sidewall panels are made from ferritic stainless steel. The shell design eliminates turnunder and other pockets causing corrosion in conventional coaches. 

C & W - Repair Procedure for Roof Leakage in LHB AC coaches

Repair Procedure for Roof Leakage in LHB AC coaches. 

ANNEXURE - 1

Procedure for FRP trough Roof Leakage in LHB AC coaches-testing & repair 

1) Drain outlet of FRP trough to be cleaned from (outside) end wall side to clear any blockage due to dry leaves, dirt, garbage and sediments. 

2) Visual inspection of RMPU bellows of return air & conditioned air, RMPU bellow gaskets, tightness of bolts, if any defects observed it has to be attended. If the duct bellows are found to be damaged, replace the damaged duct bellows. 

C & W - FIAT Bogie in LHB Coach

 3.4 FIAT BOGIE. 

The LHB coaches are provided with the FIAT bogies to run at a speed of 160 KMPH. 

Limitations of ICF all Coil Bogie 

• The longitudinal and lateral movements of the wheels cannot be controlled independently as generally required for Highspeed bogies. 
• Since there is vertical space constraint between the top and bottom bolster, it is not possible to provide softer secondary suspension springs which are required for the high speed trains to control the dynamic movements of the bogie bolster and coach body.