54
…8 SENSOR MAINTENANCE
Fig. 8.4 7320 200 High Range Sensor – Replacing the Wiper Blades
…8.2.1 Dismantling and Cleaning – Figs. 8.1 to 8.4
Wiper Drive Shaft
(square section)
Lower Wiper –
blade facing out
Upper Wiper –
blade facing in
Small Nylon
Washers
Large
Rear
Spacer
Metal
Washer
Nut
Notes.
• The proper functioning of the cleaner system depends
on the correct assembly of the washers and orientation
of the wiper blades.
• Do not use the wiper blade arms to rotate the wiper drive
shaft.
Receiver Glass
Flowcell
Securing Nut
Wiper Blades in the Parked Position
1
2
3
4
Remove the wiper blade securing nut.
Remove the blades and washers from the drive shaft.
Ensure the blade drive shaft is correctly positioned by
performing a manual clean (see Section 2.3) to 'park' the
blades.
Reassemble the components on the drive shaft in the order
shown, ensuring the wiper blades are in the parked position,
i.e. horizontal.
Using suitable spanners, prevent the wiper drive shaft from
turning and tighten the wiper blade securing nut.
Perform a manual clean (see Section 2.3) to check system
operation. Ensure blades 'park' correctly.
5
6
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