1-16
American-Lincoln
®
SC7740
OPERATION OF CONTROLS AND GAUGES - Cont.
ENGINE SPEED SWITCH
This two-position switch, located on the left side console in the bottom bank, controls the engine. The switch
position determines the governed operating speed of the engine. Place the speed switch in the “IDLE” position to
start the machine. Place the speed switch in the “FAST” position for transport andduring normaloperation,
NOTE
The engine will NOT start unless the switch is in the “IDLE” position.
SQUEEGEE/VAC SWITCH
The squeegee switch is located on left side console in the bottom bank. Pressing the upper portion of the switch
raises the squeegee and turns off the squeegee vacuum system.
In the middle position, the squeegee and its vacuum system will operate automatically when the machine’s
scrub deck is lowered. When the scrub deck is raised, the squeegee and vacuum system automatically shuts
down. The vacuum functions on a 15-second delay, collecting the water remaining in the recovery hose. If the
scrub deck is down and the machine is put in reverse (activated by the FWD/REV pedal), the squeegee will
automatically raise, again with the vacuum on a 15-second delay. When the machine is once again placed in the
forward position, the squeegee will lower and the vacuumautomatically turns on.
In pressing the lower portion of the switch a manual override is engaged, allowing the squeegee and vacuum
system to operate independent of the scrub deck. Again, if the machine is placed in reverse, the squeegee
automatically raises and the vacuum system shuts off following a 15-second delay, resuming operation once the
machine returns to its forward motion.
HOPPER SWITCH
The hopper switch is located on the left side console. The switch controls operation of the hopper. To dumpdebris
from the hopper, press the upper portion of the switch and continue to hold until the hopper is fully open. To lower
the hopper, press the lower portion of the switch and continue to hold until the hopper returns to the closed
position.
ESP SWITCH (OPTIONAL)
If installed the ESP switch is located in the leftside console on the far right of the top bank. This switch is an open
switch unless a machine option, such as a water recycling system, is ordered installed on the machine.
OPTION
LIGHT SWITCH
MAIN & SIDE
BROOM
SWITCH
HOPPER
SWITCH
SCRUB DECK
SWITCH
ENGINE
SPEED
SWITCH
SQUEEGEE/VAC
SWITCH
ESP
SWITCH
DUST
CONTROL/FILTER
SHAKER
SWITCH
OPTION
SWITCH