Operation - Section 32 OM3223
Page 32-22 Operator Cab and Controls
TROLLEY INDICATOR LIGHTS
The following indicator lights are used only when the
truck is equipped with the trolley option.
A7. Diesel Power (Amber)
When the truck is being operated
by diesel power this light will be
on. The light will be off only when
the truck is on the trolley.
B7. Trolley Ready (Amber)
The ready for trolley indicator
lamp turns on when the master
control lever is in one of the trol-
ley speed lever selection posi-
tions, but the truck has not yet
automatically switched to use
from the trolley line power. When indicator light is on,
it means that the sequence has been completed for
trolley operation. If light does not turn on after the
Master Control Lever is moved to one of the truck
speed positions, the sequence has not been com-
pleted and there will be no trolley operation. During
diesel operation (when the master control lever is in
the vertical position) the light will be off.
C7. On Trolley (Green)
After all conditions have been
met for trolley operation, this light
will turn on to indicate the truck is
no longer under diesel power,
but is now being powered
through the trolley system. The
trolley power indicator lamp turns on whenever the
trolley lines are providing the power to the wheel
motors.
D7. Trolley Fault (Red)
This indicator light on the over-
head panel will turn on if a trolley
fault occurs while the master
control switch is in the TROLLEY
position. Return the master con-
trol switch to the DIESEL posi-
tion for a minimum of one second to reset the fault.
NOTE: STATEX III records the number of "faults/
events". When a predetermined number of "faults/
events" are recorded within a given time frame, the
operator will not be able to reset the fault/event by
using the override switch. If this occurs, notify main-
tenance personnel immediately.
If a trolley fault occurs while operating in the diesel
mode, switch the master control switch to the TROL-
LEY position for a minimum of one second, and then
back to the DIESEL position, to reset the fault.
The trolley fault light may indicate the type of prob-
lem that is associated with the fault by turning on
steady, or by turning on and flashing, when the fault
occurs. If the trolley fault light is:
Flashing this may indicate that an excessive payload
caused the fault.
Steady (not flashing) this may indicate that a problem
exists with the truck trolley system.
E7. Left Limit (Amber) Optional
When on trolley, this light will turn
on if the overhead power cables
make contact too far to the left of
the pantograph. To cause the
light to go off, the operator must
steer to the left. There are sen-
sors on the pantogragh about one foot from the outer
edge of the carbon collector bar on the pantograph.
These sensors warn the operator of the possibility of
driving out from the overhead cables while on trolley.
A8. Max Speed (Green)
The maximum overhead indica-
tor light, when on, indicates the
operator has selected the fourth,
and last, detent position of the
master control lever, forward of
the OFF position. When the lever
is in this detent position, the truck will be able to
reach it's maximum trolley speed. Depending on the
overhead line voltage, the truck speed may vary from
20.4 to 23.7 kph (12.7 to 14.7 mph). See trolley
speed chart for speed ranges with different line volt-
ages.
B8. High Speed (Green)
The high overhead indicator
light, when on, indicates the
operator has selected the third
detent position of the master
control lever, forward of the OFF
position. In this position, depend-
ing on the overhead line voltage, the truck speed
may vary from 17.7 to 21.1 kph (11.0 to 13.1 mph)
while on trolley. See trolley speed chart for speed
ranges with different line voltages.
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