Signals to Warn Incoming Train of Danger Ahead (G.R. 3.65/66/67)

i
A red flashing hand signal lamp at night or a red flag during day shall be exhibited to warn the incoming train of an obstruction.
ii
When necessary to protect an obstruction in a block section before the railway servant proceeds to place detonators, he shall place a red flashing hand signal lamp at night or a red flag during day.
iii
All concerned railway servants shall keep a stock of red flashing hand signal lamp and red flag.
iv
The railway administration shall be responsible for the supply, renewal, and safe custody of such signals and also ensure that the staff properly understands the procedure for using the same.
v
Every railway servant concerned with the use of signals shall have a correct knowledge of their use and keep them ready for immediate use.
vi
All supervisors shall ensure that concerned staff working under them has correct knowledge for the working.
vii
When the Loco Pilot notices a signal warning of an obstruction, he shall stop his train immediately and act on the advice of the person exhibiting or on the basis of obstruction noticed.
viii
In case no further details, stop one/two minutes day/night to ascertain the location/cause of warning, proceed cautiously up to next block station keeping sharp lookout.

Defective Signals (App XI-6, G.R/S.R. 3.68, 3.69 and 3.70)

✓
Ensure that Station Master‘s key is in.
✓
Check all the buttons/knobs are in the required positions.
✓
Check the point position to see that the correct route is set and the track circuits on the route are showing white indication on the panel.
✓
Check whether the crank handle is IN.
✓
Ensure siding key IN and LC gate closed indication before clearing the signal.
✓
If signal lamp failure indication is flashing and audible warning is ringing, stop the warning bell by pressing the acknowledgement button.

If there is no fixed signal at a place where a fixed signal is ordinarily shown.

1
If the light of a signal is not burning when it should.
2
If a white light is shown in place of a colour light.
3
If the aspect of a signal is misleading or imperfectly shown.
4
If more than one aspect is displayed.
5
No steady aspect of signal even after 60 seconds.
6
Unable to take ―off‖ signal, even after fulfilling all conditions for taking ―off‖ signal.
7
A signal stuck up in ―OFF‖ position.
- SM shall attempt to put it back to ―ON‖ position by operating the panel.
- Report such defect to ESM/SI and copy to TI, DSTE, DSO, and SCOR.
- Make entry in the S&T failure register.
- If signal detects any points, such points shall be treated as non-interlocked as well as level crossing gate.
- SM shall personally ensure that nominated line is free for an adequate distance beyond the place where train is required to come to a stop and correct setting, clamping, and padlocking of points over the route, unless the train is dealt on calling-on signal.

Issue disconnection notice to SM (T/351) after obtaining acknowledgement of SM, then carry out the works.
After rectification, issue reconnection notice to SM (T/351).