Download 85oper79

- 4 Under normal circumstances, the blue light and bell will
be cancelled when the circuit breaker is reset.
Remote Supply Circuit Breaker
If the batteries are discharged to the point where the
auxiliary machines cannot be started, provision is made in the
jumpers to obtain a 120 V remote supply from a battery charger
on another 85 class locomotive. This is connected when jumper
couplings are inserted and Remote Supply circuit breaker (RSB)
seal is broken and switched "ON" on both locomotives. The
operation of the circuit breakers will cancel the "Failed
Alternator" indication and alarm by energising the "Supply
Indicating relay" (S.I.R.).
Once the auxiliary machines are started the "Remote Supply
Circuit breakers" on both locomotives must be opened and the
defect recorded in the log book.
Note: In the event of the motor alternator failing on a
locomotive in a multiple consist, control circuit current
(120 volt) can be obtained by adopting this procedure but in all
cases the control circuit cut out switch (CCOS) must be located
in the "off" position on the locomotive with the failed motor
alternator, in addition lower pantographs and turn off supply
isolating switch (SIS).
External Alternating Current (AC) Power Supply
An external alternating current (A.C.) Power supply socket
and switch are mounted on the underframe at No. 1 end of the
locomotive. This is used by the maintenance staff to test the
locomotive without having the 1500 V supply.
This switch should be carried in the "Normal" position.
NOTE: The sequence test switch controlling supply is next to the
control circuit cutout switch (CCOS) in the electrical cabinet.
COMPRESSORS
There are two air compressors each having a displacement
of 2 cubic metres per minute and is driven by a 1500 volt motor.
BRAKE EQUIPMENT
Locomotive class 85 (8501 - 8510) will be equipped with
automatic 26L self lapping, brake pipe pressure maintaining, type
of brake equipment. This system functions by employing the same
4 pipe arrangement as applies for the A7-B7EL type, i.e. the
locomotive pipes are designated Brake Pipe, Main Reservoir,