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-24- FORM NO. 70935A Nilfi sk ALTO Operator's Manual - SCRUBTEC 770 / 784 / 795
Figure #21
Figure #22
Figure #23
B
A
MAINTENANCE
Do These Procedures When You End Your Work
1. Drain the solution tank (Figure #21, item A) and the recovery tank
(Figure #21, item B). To drain the tanks , follow this procedure:
a. Turn the key switch “OFF”.
b. Remove the drain hose from the back of the machine.
c. Put the end of the hose over a drain or bucket.
d. Recovery Tank:
Turn the valve housing to the left (see fi gure #22). To open the
valve completely, turn the housing fully to the left and pull the
housing off of the valve.
Solution Tank:
When hose is lowered below water level, the water will drain (see
fi gure 23).
2. Flush the tanks. To fl ush the tanks, put clean water in the tank through
the opening on top of the tank.
3. If a tank or drain hose has an obstruction, use a high pressure water
hose to fl ush the tank or hose. Put the water hose into the drain hose.
4. Leave the tanks and the drain valves open to dry in the air.
5. Check the squeegee blade. Use a cloth to clean the squeegee blade. If
the squeegee blade is damaged or worn, turn or replace the blade.
6. Check and clean the recovery lid gasket. Use a mild cleaning solution
and rinse the parts in clean water.
Check the batteries and add distilled water as needed. The correct level is
within 1/4 inch of the bottom of the tube in each cell.
CAUTION!
Tap water may contain contaminants that will damage batteries.
Batteries must be re-fi lled with distilled water only.
WARNING!
Lead acid batteries generate gases which can cause an explosion.
NO SMOKING. Always wear eye protection and protective clothing
when working near batteries.
Use a clean cloth and wipe the surface of the machine.
Charge the batteries. See the instruction in the section of this book called
“How To Charge The Batteries”.