2-3. OPERATOR CONTROLS AND INDICATORS (cont)
Control or Indicator
Function or Use
Contains the throttle and reverser. See FIGURE 2-5.
Engine Control Panel
Contains start switches, stop buttons, ground and wheel slip warning
lights, ground reset button, and cowling light switch. See FIGURE 2-6.
When pulled, sounds the warning horn and the warning bell.
SAND Valve Control
When pushed, applies sand in front of the driving wheels in the direction
the locomotive is moving.
BELL Ringer Valve
When pushed, rings the warning bell.
Double-Ported Cutout Cock
Is positioned to correspond to the operating mode of the locomotive. It
has two positions: OPEN (Lead or Dead) and CLOSED (Trail).
Independent Brake Valve
Used to apply and release the locomotive brake. By depressing the
independent handle, a release of the automatic brake application can be
made on the locomotive without releasing the train brake.
Cutoff Pilot Valve
Used for cutting in or cutting out the charging (Double Heading Cock)
of brake pipe. On trailing units and when measuring brake pipe leakage,
the valve is in the OUT position.
Automatic Brake Valve
Used to apply and release the automatic brakes on the locomotive and
Regulating Valve Handle
Used to adjust the equalizing reservoir pressure when automatic brake
valve is in RELEASE.