Page 314 - IRSEM_Main Book

12.26.8 Test Charts

(a) Test Charts showing the manipulation of various levers to check each
locking as detailed in para 12.26.7 should preferably be prepared to
facilitate testing of large interlocking frames.

12.26.9 Lost Motion Test

(a) When a lever or catch handle which should be locked can be moved more
than the allowance stipulated in para 12.1.3(i).it should be considered as
having too much lost motion, which must be removed.

12.26.10 Certificate of testing locking

(a) Certificate of Testing locking on Form S&T/LT (Annexure: 12-A3) for all
interlocking frames, interlocking Key Boxes and Station Master's slide
control frames shall be promptly submitted by the SSE/JE(Signal) to the
Sr. DSTE/DSTE in duplicate. The Sr. DSTE/DSTE shall, after necessary
scrutiny, forward a consolidated statement along with a copy of the
certificate to the PCSTE for his/her record.

Section 27: Records of Testing and Overhauling

12.27.1 Records of Testing and Overhauling

(a) Record of testing and overhauling of interlocking frames, interlocking key
boxes and Station Master's slide control frames shall be maintained as
follows:-

(i) At individual stations: In the Signal incidences and Inspection register.

(ii) With the SSE/JE (Signal): In a separate Register, a separate page
shall be used for each interlocking frame, interlocking key box and
Station Master's slide control frame.

(iii) With the Sr.DSTE/DSTE and the PCSTE on cards. One card shall be
used for each interlocking frame, interlocking key box and Station
Master's slide control frame. These cards shall be suitably filled to
indicate -

 Testing or overhauling due "current period".

 Testing or overhauling "over-due".

 Testing or overhauling "done during the period".

 Testing or overhauling "done during previous period and not
requiring immediate attention".

(iv) A site verified copy of approved locking table and locking diagram,
which was basis for testing on completion of overhauling shall each be
maintained with the SSE/JE (signal) and the Divisional Office.

Chapter 12: Installation, Testing & Maintenance of Mechanical Signalling Equipment Page 268 of 535