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

d) Check containers of batteries for cracks.
e) Tighten the terminals and apply Vaseline to terminal studs and nuts.
f) Check the arc chutes of CGR for proper fixing and any signs of damage.
g) Measure contact gap, check wear limit, if necessary replace contacts.
h) Check transformer bushings for cracks.
i) Check capacitors and resistors, clean condenser tube, surge absorber with dry
cloth, check connections.
j) Check reverser J and CTF (Traction braking contactor) for free movement, air
leakage.
k) Measure the clearance of roof spark gaps.
Section E3
ET 1 - 210 mm (range 200 - 250mm)
ET 2 - 70 mm (range 70 - 125mm)
a) Carry out a visual check of the traction motors for condition of the commutators,
signs of any abnormality like flash over etc.
b) Check brush holders and brushes.
c) Check connections for tightness.
d) Clean and blow out with compressed air,
e) Check commutator and brushes of auxiliary compressor.
f) Check other auxiliary machines including Arno converter for tightness of
connections and foundation bolts.
Section E4
a) Check speedometer calibration renew charts.
b) Visually check contact pressure and clean contacts of relays.
c) Check time setting and operation of time delay relay.
d) Check and clean insulators and inspect secondary contacts of air-blast circuit
breaker.
e) Drain the air reservoir of circuit breaker.
v) Lubricate the isolating contacts by graphite grease and test the air-blast circuit
breaker for proper operation.
8.7 TWO MONTHLY INSPECTION (IB)
The items listed below are in addition to those covered under IA. Tests before and after
inspection will are as listed under IA: