Control System 38Service Manual – SC6500
™
Heavy Scrub Setting Adjustment
Note that the factory default settings for the heavy scrub setting are: Scrub pressure – two bars, Solution
ow rate – two bars.
The scrub pressure and solution ow rate for the heavy scrub setting can be programmed to better suit
a particular application. This allows you to select a higher solution rate with heavy scrub pressure, or a
normal solution rate with heavy scrub pressure, etc., as the heavy scrub setting. To change the heavy scrub
settings:
1. Turn the key switch off.
2. Press and hold the scrub on and detergent switches.
3. While holding both switches, turn the key switch on.
4. Continue to hold both switches until the detergent indicator turns on and the heavy scrub 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 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.
Extreme Scrub Setting Adjustment
Note that the factory default settings for the extreme scrub setting are: Scrub pressure – three bars, Solution
ow rate – three bars.
The scrub pressure and solution ow rate for the extreme scrub setting can be programmed to better suit
a particular application. This allows you to select a higher solution rate with extreme scrub pressure, or a
normal solution rate with extreme scrub pressure, etc., as the extreme scrub setting. To change the extreme
scrub settings:
1. Turn the key switch off.
2. Press and hold the scrub on and vacuum/wand switches.
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