Page 293 - IRSEM_Main Book

12.7.8 Enamel Signal Arms

(a) Enamel signal arms shall be scrubbed with soap to clean them. If
corroded in places, these shall be touched up with enamel paints.

(b) Signal arms which are not enamelled, shall be painted with enamel paints.

12.7.9 Numbering of Points and Signals

(a) The cabin lever number of points and facing point Lockbars shall be
painted in 50 mm letters on the web and close to the toe of the switch rail.

(b) The number of the cabin lever operating the signal shall be painted in 50
mm letters at the back of the signal arm blade.

12.7.10 Numbers shall be written in codes as under: (table)

i) Points - 20 W ’20 W’ stands for lever No. 20 West Cabin

ii) Points & Facing Point ‘P32” stands for points lever No. 32 and ‘L33E’
lock (P32 L33E) stands for lock bar lever No. 33, East Cabin

iii) Signals - 51A ‘51A’ stands for lever No. 51 ‘A’ Cabin,

- 52B ‘52B’ stands for lever No. 52 ‘B’ Cabin

- 53 GFA ’53 GFA’ stands for lever No. 53 Ground Frame ‘A’.

(a) Numbers of interlocking frame levers shall also be painted on the front
and back side of the main girder supporting the frame opposite each lever
in 50 mm white letters.

12.7.11 Dates of Painting: The year and the month of painting work shall be clearly
and neatly shown on all interlocking frames, signal posts, block instruments,
Station master's slide control frames and instruments. Suitable entries shall
also be made in the Register maintained for this purpose.

Section 8: Maintenance of Mechanical Signalling

12.8.1 Cabin equipment: All cabins shall be equipped with

(a) A Cabin Diagram showing the location and normal position of all points.
Facing point locks, Signals and Level Crossings, with their respective
cabin lever numbers;

(b) A lever pull chart suitably exhibited;

(c) Lever collars;

(d) A suitable staging with ladder for attending to interlocking frame;

(e) Telephones, as necessary;

Chapter 12: Installation, Testing & Maintenance of Mechanical Signalling Equipment Page 247 of 535