Maintenance; Fitting And Replacing The Wiper Blade - ABB Aztec ATS430 Operating Instructions Manual

7 Maintenance

7.1 Fitting and replacing the wiper blade

Referring to Fig. 7.1:
1. Refer to the AWT440 transmitter operating instruction
(OI/AWT440-EN and stop wiper operation.
2. Remove sensor from sample and clean the sensor.
3. Using a 5.5 mm spanner or hex nut driver, remove nyloc
retaining nut A .
4. Remove wiper arm B
O-ring.
5. Thoroughly clean wiper motor shaft
and check condition. If the shaft is damaged, consult the
factory.
6. Lightly grease captive O-ring within the new wiper arm
assembly.
7. Align the flat in the new wiper arm assembly with the flat on
wiper motor shaft C
the wiper blade faces the sensor end cap.
8. Insert supplied feeler gauge
captive O-ring and the sensor end cap.
9. Fit a new nyloc M3 nut and tighten until feeler gauge
lightly pinched but can be removed without excessive force.
Remove the feeler gauge.
10. Refer to the AWT440 transmitter Operating instruction
(OI/AWT440-EN) and re-start the wiper operation. Ensure
the wiper arm functions correctly by issuing a manual clean
request from the transmitter.
11. Replace the sensor in the sample.
12. Refer to Section 5.1, page 9 to reset the wiper lifetime.
complete with blade and captive
and sensor end face
C
and fit the arm to the shaft, ensuring
D between the wiper arm
D
A
Fig. 7.1 Fitting and replacing the wiper
D is
Aztec ATS430 | Turbidity sensor | OI/ATS430–EN Rev. H 23
C
B