Solution Filter Cleaning; Chemical Mixing System Draining - Nilfisk-ALTO SCRUBTEC R 253 Bedienungshandbuch

SOLUTION FILTER CLEANING

1. Drive the machine on a level floor.
2. Ensure that the machine is off and the operator key (41) is turned to "O".
3. Close the solution tank valve (9). The valve is closed when it is in position (9-B) and it is open when it is in position (9-A).
4. Remove the transparent cover (A, Fig. 10), retrieve the gasket (B), then remove the filter strainer (C). Wash and rinse them
with clean water, then refit them carefully onto the filter support (D).
5. Open the valve (9-A).

CHEMICAL MIXING SYSTEM DRAINING

(For machines with Chemical Mixing System)
To remove residual detergent from the detergent hoses and pump, proceed as follows.
6. Turn on the machine by turning the ignition key (41) to "I".
7. Press the push-button (42). Check that the detergent quantity indicator (48-G) on the display has at least one segment lit.
8. Press and hold buttons (48) and (49) at the same time until screen (48-M) appears on the display (after approximately 5
seconds).
9. Release buttons (48) and (49) and wait for the countdown timer on the display to finish and the vacuum system to be activated.
10. Collect the detergent remained on the floor.
11. Turn off the machine by turning the ignition key (41) to "O".
12. Lift the recovery tank assembly (17), then check that the detergent tank hose (38) is empty, otherwise perform steps 3 to 7
again.
NOTE
The draining cycle lasts about 30 seconds, then the vacuum function automatically turns on, which allows to remove the
detergent remained.
The draining cycle can also be performed with the detergent tank (38) full of water, thus cleaning the system thoroughly.
It is advisable to perform this type of draining to clean the Chemical Mixing System from dirt and deposits if the machine
has not been used/cleaned for a long time.
The draining cycle can also be performed to quickly fill the detergent supply hose when the tank (38) is full but the
system is still empty.
If necessary, the draining cycle can be performed several times in succession.
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INSTRUCTIONS FOR USE
D
B
C
A
Figure 10
9100000391 - SCRUBTEC R 253
ENGLISH
P100874
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