Nilfisk Advance Hydro-Retriever 2 BR 700 Mode D'emploi page 12

FUNCTIONAL DESCRIPTION OF CONTROL BUTTONS:
The controls on the Hydro-Retriever™ 2800 / BR 700 were designed with one touch operation in mind. For single pass scrubbing the user can simply depress
one button and all systems on the machine will be ready to go.
For most single-pass scrubbing operations, the operator should only need to use the second row of three buttons on the control panel. These are the Scrub Mode
Off, Normal Scrub, and Heavy Scrub buttons. For this reason these buttons are outlined in bright white on the control panel while the other buttons are outlined
in a darker color.
Horn Button (22) - Pressing this button will activate the horn.
Scrub Off Button (25) - Pressing this button when the unit is in a scrub mode will cause the following to occur:
• The scrub brushes will turn off
• The scrub deck will raise to the UP position
• The solution flow will be stopped
• The first time that this button is pressed, the vacuum/squeegee system will NOT be turned off. This is so that any remaining water may be picked up without
having to turn the vacuum back on. If this button is pressed a second time (pressed after the scrub mode has been turned off) the squeegee will raise
and the vacuum will shut off after a 6 second delay.
NORMAL AND HEAVY SCRUB BEFORE SERIAL NUMBER 1373822
Normal Scrub Button (26) - Pressing this button will cause the normal scrub mode to be selected. In this mode a moderate amount of down pressure is applied
to the scrub brushes. The following will occur when this button is pressed:
• The scrub deck will be lowered
• The vacuum and solution systems will be enabled (vacuum and solution modes = AUTO)
• As soon as a direction is commanded by the throttle (forward or reverse) the brushes will start turning and the vacuum will turn on. If the direction is forward,
the squeegee will lower and the solution flow will start. If the direction is reverse, the squeegee will go to the up position and the solution flow will be stopped.
Heavy Scrub Button (27) - Pressing this button will cause the heavy scrub mode to be selected. In this mode a large amount of down pressure is applied to the
scrub brushes. See the above description for further actions.
NORMAL AND HEAVY SCRUB AFTER SERIAL NUMBER 1373821
Normal Scrub Button (26) - Pressing the normal scrub button will enable the scrub system and set the scrub pressure to the last selected value for the normal
scrub mode. The status display will momentarily display the scrub pressure setting. This is indicated by "PA" followed by a number. Subsequent presses of the
normal scrub button will step the pad pressure setting through the allowable range up to the maximum value programmed for the normal scrub mode. Once the
maximum value is reached the pressure setting will step back to 1. The factory default maximum for the normal scrub mode is 4. The following will occur when
this button is pressed:
• The scrub deck will be lowered
• The vacuum and solution systems will be enabled (vacuum and solution modes = AUTO)
• As soon as a direction is commanded by the throttle (forward or reverse) the brushes will start turning and the vacuum will turn on. If the direction is forward,
the squeegee will lower and the solution flow will start. If the direction is reverse, the squeegee will go to the up position and the solution flow will be stopped.
Heavy Scrub Button (27) - Pressing the heavy scrub button will enable the scrub system and set the scrub pressure to the last selected value for the heavy scrub
mode. The status display will momentarily display the scrub pressure setting. This is indicated by "PA" followed by a number. Subsequent presses of the heavy
scrub button will step the pad pressure setting through the allowable range up to the maximum value programmed for the heavy scrub mode. Once the maximum
value is reached the pressure setting will step back to (normal scrub limit + 1). The factory default maximum for the heavy scrub mode is 7 (cylindrical) or 9 (disc).
The following will occur when this button is pressed:
• The scrub deck will be lowered
• The vacuum and solution systems will be enabled (vacuum and solution modes = AUTO)
• As soon as a direction is commanded by the throttle (forward or reverse) the brushes will start turning and the vacuum will turn on. If the direction is forward,
the squeegee will lower and the solution flow will start. If the direction is reverse, the squeegee will go to the up position and the solution flow will be stopped.
Vacuum Button (29) - This button is used to select the mode of operation for the vacuum/squeegee system. There are 3 modes of operation for this system.
These modes are OFF, AUTO, ON. Following is a description of each mode and how they are selected.
OFF MODE: In this mode the vacuum is off and the squeegee is in the up position. As mentioned above, when a scrub mode is selected, the vacuum system
will be placed in the AUTO mode. If it is desired to double-scrub (scrub without recovering the solution) the vacuum system can be turned off by pressing this
button.
AUTO MODE: This mode is automatically selected when a scrub mode is selected. In this mode the squeegee will be in the down position unless the reverse
direction is selected via the throttle. The vacuum will turn on if either direction is selected. While in this mode the vacuum will remain on for 10 seconds after the
throttle returns to the neutral position. This is so that the solution in the squeegee and hose can be drawn into the tank. This mode can be selected independently
of the scrub mode by pressing and releasing the vacuum button.
ON MODE: In this mode the squeegee will remain in the UP position and the vacuum will be on regardless of the throttle position. This mode is selected by pressing
and holding the vacuum button for approximately 1.5 seconds. The vacuum mode must first be OFF before entering this mode. This mode is included in the event
an external wand is to be used with this machine or if the operator wants to clean the squeegee using the vacuum hose.
Solution Button (30) - This button is used to select the mode of operation for the solution system. There are 3 modes of operation for this system. The modes
are OFF, AUTO, MOMENTARY ON. Following is a description of each mode and how they are selected.
OFF MODE: In this mode the solution flow is turned off. As mentioned above, when a scrub mode is selected, the solution system will be placed in the AUTO
mode. If it is desired to scrub without dispensing solution, the solution can be turned off by pressing this button.
AUTO MODE: This mode is automatically selected when a scrub mode is selected. In this mode the solution flow will be turned on whenever the forward direction
is selected via the throttle. The solution flow will be turned off otherwise.
MOMENTARY ON MODE: This mode can only be selected when the scrub mode is OFF. Solution can be dispensed by pressing and holding the solution button.
Solution will be dispensed for as long as the button is held. This is for pre-wetting the floor prior to scrubbing.
12 - FORM NO. 56041451 - Hydro-Retriever ™ 2800 / BR 700 revised 3/00