Tank And Vacuum Grid With Float Cleaning, And Cover Gasket Check; Vacuum System Motor Filter Cleaning - Nilfisk CA 451 Betriebsanleitung

ENGLISH

TANK AND VACUUM GRID WITH FLOAT CLEANING, AND COVER GASKET CHECK

1. Disconnect the power supply cable (3) from the electrical mains and place it on the holder (4).
2. Drive the machine to the appointed disposal area.
3. Open the cover (18) to washing position (L, Fig. 3).
4. Wash with clean water the cover (A), the tanks (B and C) and the vacuum grid with automatic shut-off fl oat (D).
Drain the water from the tanks with the hoses (12 and 13).
5. If necessary, release the fasteners (E) and open the grid (D), recover the fl oat (F), clean all the components and then reinstall
them.
6. Check the tank cover gasket (G) for integrity.
NOTE
The gasket (G) creates vacuum in the tank that is necessary for vacuuming the recovery water.
If necessary replace the gasket (G) by removing it from its housing (H). When assembling the new gasket, install the joint (I) in
the rear central area, as shown in the fi gure.
7. Check that the seating surface (J) of the gasket (G) is integral and adequate for the gasket itself.
8. Check the compensation hole (K) for clogging, and clean it if necessary.
NOTE
The hole (K), allowing to compensate the air in the cover air gap, contributes to create vacuum in the tank.
9. Close the cover (A).
G
B
C

VACUUM SYSTEM MOTOR FILTER CLEANING

1. Drive the machine on a level fl oor.
2. Disconnect the power supply cable (3) from the electrical mains.
3. Remove the recovery tank retaining plate (36).
4. Open the recovery tank.
5. If necessary, drain the water from the tank in order to make the fi lter visible.
6. Check that the pre-fi lter is clean. If necessary clean it with water and compressed air, then install it.
7. Perform steps 1, 2, 3 and 4 in the reverse order.
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USER MANUAL
A L
K
I
J
909 6750 000(4)2010-03 A
D
Figure 4
CA 451 - CA 531
G
H
E
E
F
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