Nilfisk-Advance Adphibian AX 651 Multi EDS Service Manual page 19

If the scrub system is activated in extract or scrub mode, pressing this switch will cause the solution system to alternate
between disabled and enabled. The solution flow will only turn on when the throttle is moved from the neutral position
to the forward direction. The solution flow will turn off if the throttle returns to neutral or is moved to reverse. The
solution indicator will be green if the solution is on. If the solution is off, this indicator will be off. The indicator will be
yellow if the solution has been enabled but the throttle is in neutral. If there is a solution system fault, the indicator will
flash yellow.
If the machine is in hard floor scrub mode and the scrub system is off, pressing this switch will pre-wet the brushes.
The Solution Active Indicator (D15) indicator will show a full gauge and solution will be sprayed from the "maintenance"
nozzle while the switch is held.
Vacuum Switch (E)
This switch is used to toggle the vacuum system on or off. The vacuum will only turn on when the throttle is moved from
the neutral position. It will remain on for 10 seconds after the throttle returns to neutral. The indicator in the Vacuum
Switch (E) will be green if the vacuum is on. It will flash green if the vacuum is in the 10-second delayed-off condition.
If the vacuum is off, this indicator will be off. The indicator will be yellow if the vacuum has been enabled but the throttle
is in neutral. If there is a vacuum system fault, the indicator will flash yellow.
Speed Control Fault Indicator (F)
If a speed control fault occurs (error code 3), the Speed Control Fault Indicator in the Wand Switch (G) will flash the
fault code produced by the Curtis speed control. Refer to the Curtis Controller Diagnostics section for details.
Wand Switch (G)
This switch is used when an external scrub wand is used. Pressing this switch will turn the vacuum on continuously
without regard to the throttle position. It will also enable the solution pump. If the scrub system was on it will be turned
off. This includes turning off the scrub brushes and raising the scrub deck and turning the solution flow to the scrub
deck off. The indicator in the Wand Switch will be green when the wand function is on. Otherwise it will be off.
Scrub OFF Switch (H)
Pressing this switch when the scrub system is active or in pre-spray mode will cause the following to occur:
• The scrub brushes will turn off and the scrub deck will rise to the up position. If the extraction/vacuum shoes are
lowered, they will rise with the scrub deck.
• The solution flow will be stopped.
• If the vacuum is running and the machine is in extract mode, the vacuum will shut off after a 10-second delay. If the
vacuum is running and the machine is in the hard floor scrub mode, the vacuum will shut off 10 seconds after the
throttle is moved to the neutral position.
• The travel speed limit will return to the transport speed setting.
• The display will indicate the nozzles are turned off and the deck is in the raised position.
• The scrub off indicator will be green if the scrub system is off and ready to be activated. The indicator will be off if
the scrub system has been activated. If the scrub system has been turned off and the scrub deck is not up yet, the
indicator will be red. If there is a fault in the scrub system this indicator will flash red.
Scrub ON Switch (J)
If the machine is in the extract mode, and the scrub system is off or in the restoration mode extraction, pressing this
switch will cause the machine to enter maintenance mode extraction. The following will occur:
• The scrub system will be enabled with the system configured for the LIFT Low Moisture Extract Mode. If the scrub
system was off, the scrub deck and extraction/vacuum shoes will be lowered.
Form No. 56043116 - Adphibian™/AX 651 Multi EDS/AquaPLUS™ - 19