Page 75 - IRSEM_Main Book
P. 75
4. Replacement of
(a) Electric signal lamp provided phantom indication to driver of an incoming train is
prevented by covering lenses.
(b) Bond wire, one at a time.
(c) Plug-in relay in case traffic condition permits.
(d) Indicator lamps.
(e) Push button/switch/key of panel.
(f) Lock bar clips/bar stop, one at a time.
(g) G. D. tubes.
(h) Fuse, one at a time.
(i) Pulley, bottom roller/top roller in wire and rod transmission one at a time and split pins.
(j) Batteries/cells without affecting disconnection of supply to main equipment.
Chapter 3: Duties Of Signal Supervisors And Technical Staff Page 51 of 535
