Control System 37Service Manual – SC6500
™
5. Release both switches. The display will now show a clock icon in the upper left corner with a number
indicating the scrub deck down time period.
6. Press the scrub on switch to increment the time period. Each press of the switch increments the scrub
deck down time 0.1 seconds. For example, the time will increment from 2.0 seconds to 2.1 seconds, and
so on. The deck down times range from 1.0 to 3.0 seconds.
7. Press the scrub off switch to save the new setting and display the key switch icon.
8. Turn the key switch off. The new setting will be saved until changed again.
Normal (Light) Scrub Setting Adjustment
Note that the factory default settings for the normal scrub setting are: Scrub pressure – one bar, Solution
ow rate – one bar.
The scrub pressure and solution ow rate for the normal scrub setting can be programmed to better suit a
particular application. This allows you to select a higher solution ow rate with normal scrub pressure, or
a normal solution rate with heavier scrub pressure, etc., as the normal scrub setting. To change the normal
scrub settings:
1. Turn the key switch off.
2. Press and hold the scrub on and scrub speed switches.
3. While holding both switches, turn the key switch on.
4. Continue to hold both switches until the scrub speed indicator turns on and the normal scrub on
indicator blinks.
5. Release both switches. The display will now show a scrub icon (either disc or cylindrical) with the
current scrub pressure setting.
6. Press the scrub on switch to increment the scrub pressure setting as shown by the number of bars in the
display.
7. Press the scrub off switch to save the new scrub pressure setting and move to the solution ow rate
setting. The display will now show the solution icon with gauge. The normal scrub indicator will stop
blinking and the solution system indicator will blink.
8. Press the solution switch to increment the solution ow rate as shown by the number of bars in the
display.
9. Press the scrub off switch to save the new solution ow rate setting and move to the detergent
concentration setting. The display will now show the detergent icon with a 0, + or – next to it. The
solution system indicator will stop blinking and the detergent indicator will blink.
10. Press the detergent switch to scroll through and select the 0, + or – character in the display.
• Selecting 0 will not change the detergent concentration in the detergent ratios.
• Selecting + will increase the detergent concentration in the detergent ratios by 10 percent.
• Selecting – will decrease the detergent concentration in the detergent ratios by 10 percent.
11. Press the scrub off switch to save the detergent concentration setting and display the key switch icon.
12. Turn the key switch off. The new settings will be saved until changed again.
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