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. 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. A7. Diesel Power (Amber) 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: 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. Flashing this may indicate that an excessive payload caused the fault. B7. Trolley Ready (Amber) Steady (not flashing) this may indicate that a problem exists with the truck trolley system. 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. 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. C7. On Trolley (Green) A8. Max Speed (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. 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. 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. 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. 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.