E
Nilfisk
ALTO
Attix7_ver.1.0_140105
7.12 Checking electronic level control in automatic mode
(Attix 751-61/-71, 19 Gallon/AE)
1.
Make sure the unit is isolated from the power supply.
2.
Remove the hood (see 4.4, page 30).
3.
Place the cleaner head on a table so that the hose
hangs downwards.
4.
Remove the two motor cables from the board and
the switch.
5.
Connect the test lamp 302000764.
6.
Insert the test lamp 302000765 in the socket.
7.
Apply line voltage and set the switch to “Auto”.
Visual check:
Green LEDs (D2 and D7) illuminate.
Red LED (D3) flashes.
Check soft start:
The motor lamp slowly starts to illuminate (soft
start).
Continued on page 42
B2
r s e e o
P es ur s ns r
LED green
Oper
olt
ating v age
present
(D2)
Po er lin
w
e
L1
N
LED g e n
r e
M o n
ot r o
D7)
(
een
LED gr
p on
Pum
6)
(D
ibr
Cal
ation
on
butt
w
LED yello
Level
Pump on
(
)
D4
LED red
Motor off
(D5)
ED red
L
icrop
ssor
M
roce
wo kin
r
g
(D3)
H1
Lamp
Motor
0 0 6
302 0 7 4
Pump
Lamp H2
302000765
Troubleshooting
T
ro
u
le
s
h
o
o
ti
n
b
g
41/59