User's Manual

TRAIN CHIEF® II LRCS w/Lightweight OCU OWNER’S MANUAL
95-00-0-xxx Rev 000 3-13 Control Chief Corporation
Figure 3-11
Locomotive Interface
Introduction
The connection of the RCU to the locomotive is achieved through both electrical and pneumatic
(air) interfaces. All locomotive interface connections are located on the bottom of the RCU. The
RCU manages all necessary connections for the specific locomotive functions. Once interfaced,
the RCU becomes an integral part of the locomotive system and utilizes the locomotive DC
power and main air reservoir supply. This enables the Train Chief® II system to support the full
functionality of the locomotive without any non-typical system configurations. Below is
discussion on some of the key elements of the locomotive interface. Refer to the system prints
for the detailed interfacing requirements for your specific locomotive.
Main Air Supply Shut-Off Valve and Filter Assembly
Located on the bottom of the RCU unit is the main air supply input for all pneumatic functions
controlled by the system. Ahead of the main air supply inlet (installed separately in the
locomotive cab) there must be a pneumatic shut-off valve and filter assembly (supplied in the
installation kit). The shut-off valve must be in the closed position (handle is at a right-angle to
the air-line) for manual and in the open position (handle in-line) for remote. The assembly also
includes two (2) filter housings: one is a particulate filter and the second is a coalescing unit.
These filters protect the pneumatic components in the system. These filters must be part of your
scheduled maintenance for the locomotive to insure optimum performance and maintain
warranty requirements.
Manual/Remote Transfer Switch
The manual/remote transfer switch is located on the right-hand side of the RCU. The function of
the switch is to transfer out critical manual (cab) locomotive functions when switching from
manual to remote, and to transfer out critical remote functions when switching from remote to
manual.