Rule 104.2 — Dual Control Switches

1. (i)the selector lever is placed in “hand” position;
2. (a)Except as required by rule, a dual control switch must not be placed in hand position without permission from the RTC or signalman.
3. (ii)the hand throw lever is operated until the switch points move in both directions with the action of the hand throw lever; and
4. (b)When a movement is required to operate over a dual control switch under a Stop indication, unless relieved of the responsibility by the RTC or signalman, the movement must not proceed until;
5. (iii)the switch is lined by hand for the route to be used. The selector lever must be restored to “power” position and locked, but not before the movement has occupied the switch points.
6. (c)The RTC or signalman must not relieve a crew of the requirements of paragraph (b) until it has been determined, from the office control devices and indications, that dual control switches in the route to be used are properly lined. When so relieved, a crew member must observe that the switch points are lined for the authorized route. (c) OPTIONAL (to above with approved system) The RTC or signalman may relieve a crew of the requirements of paragraph (b) when automated office control devices confirm that dual control switches are properly lined for the route generated on the authority that will be issued to the movement.
7. (d)When switching is to be performed over a dual control switch, in conjunction with Rule 566.1 or 577.1, the switch may be operated by hand after authority has been obtained as prescribed by Rule 566, 567 or 577. The selector lever must be placed in “hand” position. The hand throw lever must be operated until the switch points move in both directions with the action of the hand throw lever. The selector lever must be left in “hand” position until switching is completed. The RTC must be advised when the selector lever has been restored to the “power” position and locked.

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