Traction Rolling Stock - Indian Railways Institute of Electrical ...

8.5.2.14 Wherever time and facilities are available the passenger locomotives should
immediately be washed.
8.6 MONTHLY INSPECTION (IA)
8.6.1 Tests
The supervisor of E2 section should carry out tests listed below before and after the
inspection .
8.6.1.1 Preliminary tests with 25 kV supply ON –
a) Measure and record battery (BA) voltage.
b) Measure and record battery charger voltage.
kg/ cm².
c) Check time taken to build up compressed air pressure from 1 kg/cm² to 8-9
d) Check blowing out of safety valve.
e) Check vacuum obtained with driver brake control valve MPF or A9.
f) After building up vacuum, check for vacuum leakage for 5 mins.
g) Check vacuum drop required for brakes to apply.
h) Note pressure gauge reading when brakes are applied.
i) Check working of braking electro-valve VEF.
j) Check working of blowers under 'direct' and 'automatic' starting conditions.
k) Note and record air leakages for one minute in main reservoirs and brake
cylinders.
l) Test headlights.
m) Test working of cab heaters and fans.
8.6.1.2 Preliminary tests with 25 kV supply OFF -
a) Measure and record time required for raising and lowering both the pantographs.
b) Measure and record time taken for various time delay relays.
c) Test functioning of auxiliary circuit earth fault relay (QOA) by creating an earth
fault.
d) Test functioning of power circuit earth fault (QOP) by creating an earth fault,
e) Check functioning of all lights.
8.6.1.3 Tests under high tension before and after inspection successively from cab 2 and