Calibrating Electronic Level Control (Attix 751-61/-71, 19 Gallon Ae); Removing/Fitting Electronic Level Control (Attix 751-61/-71, 19 Gallon Ae) - Nilfisk-ALTO ATTIX 751-01/-11/-21 Repair Manual

Nilfisk
ALTO
7.13 Calibrating electronic level control (Attix 751-61/-71, 19 Gallon/AE)
7.14 Removing/fitting electronic level control
(Attix 751-61/-71, 19 Gallon/AE)
Attix7_ver.1.0_140105
Troubleshooting
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. Mark the hose at 7 cm (see 7.11, page 40).
5. Place the jumper (53840) on X5 (1).
6. Apply line voltage and set the switch to "I".
Visual check:
Green LED (D2) illuminates.
Yellow LED (D4) and red LED (D5) flash.
7. Immerse the hose up to the marking in water, and
press the calibration button (2) with an insulated
tip. During calibration the LEDs (D4 and D5) will
illuminate (about 2-3 s). After calibration they
extinguish.
8. Remove the jumper from X5 (1), and check the level
control after resetting with the switch.
1. Remove the hood (see 4.4).
2. Withdraw the connections of the power line, motor
and temperature sensor from the electronics.
Disconnect L1 and N on the socket. Take the two
hoses off the pressure sensor.
3. Undo the retaining screw on the rotary knob with a
Phillips screwdriver, and remove the rotary knob
(see 7.10).
4. Undo the two retaining screws behind the rotary
knob with a Phillips screwdriver, and remove the
electronics (see 7.10).
5. Fit in the reverse order.
E
1
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