Page 404 - IRSEM_Main Book

Note:- An overview of Axle Counter resetting arrangements mentioned above, is
given below.

Axle Counter status after
S. Line/Section Type of Reset To be applied by application of Reset
No. (1) (2) (3)
(4)
1 Block Section/ Preparatory On duty ASMs at After operation in Column
Automatic Reset both ends of (3) and axle counter will
Signalling Section/ Block Section show ‘clear’ only after
IB Signalling section tallying ‘count in’ with

‘count out’ by the passage
of first Train.
2 Station Section Preparatory On duty ASM -do-
(a) Main line/ Reset and another
Run through lines operating staff

(b) Point zones/ Conditional On duty ASM Will show ‘clear’ after
Loop lines/Sidings Reset and another operation in Column (3)
operating staff

For Station Section: Once the axle counter has failed and is showing fault condition,
the first train shall be piloted as per extant rules, after verification of the clearance of
the reception line. After the piloted train has cleared the portion being monitored by
the axle counter, the axle counter may be reset. The reset device shall be operated by
a key which shall be kept locked in a separate box in the SMs office. Whenever, it
becomes necessary to operate the reset device, the resetting shall be done jointly by
the on duty ASM along with another Operating staff.

17.7.6 If Axle Counter cannot be reset, due to any reason or it fails again after
resetting, it should be treated as failed and the Signalling maintenance staff
should be advised immediately for rectification.

Note: Both the words namely; Assistant Station Master/Station Master (ASM/SM) are
used synonymously.
Section 8: Maintenance of Axle Counters

17.8.1 Maintenance of axle counters shall be done as per RDSO's guidelines and
maintenance recommendations of equipment manufacturers.

(a) In case of double rail mounted track devices there shall be no differential
creep between the two rails of the track to the extent as to alter their inter
distance beyond the permissible tolerance, it is, therefore, necessary that 4
rail lengths on either side shall be well anchored.

(b) Anchoring of track on either side of the rails where track devices of axle
counters are fixed, shall be closely watched by the Permanent Way staff to
ensure that there is no differential creep.

(c) Tie Tamper shall not be used for 4 sleepers on either side of the track
devices. Incidentally they should be manually maintained.

Chapter 17: Train Detection Track Circuits & Axle Counters Page 352 of 535