Download SUPPLEMENTARY OPERATING INSTRUCTIONS

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MISCELLANEOUS NOTICES—continued.
, REGULATIONS FOR WORKING THE AUTOMATIC AIR BRAKE ON LOCOMOTIVE—OPERATED TRAINS
CONVEYING VEHICLES EQUIPPED WITH DISTRIBUTORS AND OPERATING ON THE TWO—PIPE SYSTEM.
With reference to the instructions shown on page 4 (page 7 Supp. No.2) of the B.R. General Appendix,
the following additional instructions apply:—
INSTRUCTIONS TO STAFF RESPECTING THE FAILURE OF DUAL AUTO AIR BRAKED LOCOMOTIVES
WHENWORKING AIR BRAKED TRAINS
If a dual auto air braked locomotive fails in traffic it must be ascertained from the driver if the
locomotive can operate and maintain the brakes on the train. The following procedure must then be
observed:
LOCOMOTIVES WORKING PASSENGER TRAINS
(a) I f the failed locomotive can operate and maintain the train brakes the train may be hauled by a
vacuum braked diesel main line locomotive or by a dual auto air braked locomotive.
(i) Wh e n a vacuum braked locomotive is used the driver of the leading locomotive must
control the brakes on the two locomotives only, and the brakes on the remainder of the
train must be controlled by the driver of the failed locomotive who must keep a sharp
lookout and be prepared to operate the train brakes as necessary. The train may then
proceed to the next point where a dual air braked locomotive is available and the speed
must not exceed 40m.p.h.
(ii) When a dual auto air braked locomotive is used the provision of the final sentence of
clause (b) will apply.
(b) I f the failed locomotive is unable to operate and maintain the train brakes a dual auto air
braked locomotive only may be used to haul the train. The brakes of both the locomotives
and of the train must be controlled from the leading locomotive.
(c) I f assistance can only be provided from the rear, any type of locomotive may be used for the
purpose.
If the train locomotive is able to operate and maintain the train brakes the driver of that
locomotive must control the train brakes.
If the train locomotive is unable to maintain the air pressure required the provisions of
Instruction 10 of the "Regulations for working the Automatic Air Brake on Locomotive operated
trains conveying vehicles equipped with Distributors and operating on the two pipe system"
must, so far as they are applicable, be observed. In either case, the train must travel at
such reduced speed as is necessary having regard to the absence of, or reduced, air brake
power and the train must NOT be assisted beyond the first point at which there are facilities
for attaching a locomotive to the front of the train for forward working in accordance with
clause (a) or (b) herein.
LOCOMOTIVES WORKING FREIGHT TRAINS (Other than Coal Trains formed of 26—or 32—ton capacity
wagons and Freightliner trains—see instructions for these types of train in Supplement No.2 to the B.R.
General Appendix).
When possible a dual auto air braked locomotive should be used to assist and the provisions of the
final sentence of clause (b) above will then apply.
If a suitably equipped locomotive is not available, one of the following courses of action should be
taken:
(1) I f the train locomotive is able to operate and maintain the train brakes, the train may be
assisted forward at reduced speed to the nearest point where it can be shunted clear of the
running lines by any type of locomotive which may be attached to the front or rear of the train.
Assistance may also be given in the rear by a train.
When the assisting locomotive is attached to the front of the train, the provisions of Rule 135
will apply, except that the driver of the train locomotive will be responsible for the working
of the air brake on the train and the driver of the leading locomotive responsible for applying
the brakes of that locomotive when necessary.