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American-Lincoln
®
SC7740
WARNING BANK
The Warning Bank is located on the lefthand side of the instrument panel and provides the operator
with eight fault/status indicators for engine, sweeping, and scrubbing systems. The operator should
monitor the indicators whenever operating the SC7740. It is very important the operator be familiar
with the meaning of each indicator.
ENGINE TEMP LIGHT
The engine teperature light illuminates to indicate an engine cooling system fault. When this occurs, the operator
must turnoff the SC7740 immediately and have the cooling system serviced by a qualified technician.
ENGINE OIL PRESSURE LIGHT
When the oil pressure drops below approximately 5 psi, an automatic protection circuit shuts down the engine
and illuminates the light to indicate low oil pressure. When this occurs, have the SC7740 serviced by a qualified
technician.
CHARGING SYSTEM LIGHT
The charging system (battery) light illuminates to indicate a charging system fault. When this occurs, the
SC7740 charging system is not working properly and must be serviced by a qualified technician.
HIGH RECOVERY LIGHT
The recovery high warning light, located on the lefthand side of the instrument panel, will illuminate approximately
5 minutes before the recovery tank is full, giving ample time to complete the scrubbing cycle, before the mechani-
cal float shuts off the vacuum to the recovery tank.
LOW SOLUTION LIGHT
The low solution warning light , located to the left of the high recovery light, will illuminate when the solution tank
is empty and marks the end of the scrubbing cycle.
OPERATION OF CONTROLS AND GAUGES - Cont.
CHARGING
SYSTEM
LIGHT
ENGINE
TEMP
LIGHT
ENGINE
OIL
PRESSURE
LIGHT
HIGH
RECOVERY
LIGHT
DUMP
DOOR
LIGHT
LOW
SOLUTION
LIGHT