Repairing the Sampler 4
1100 Series WS MWS Reference Manual 137
Peristaltic Pump Motor
Removing the peristaltic pump motor
1 In the user interface start the maintenance mode and select the “Change
Needle/Seat” function.
2 Switch off the sampler at the main power switch. Remove the power cable.
3 Remove the top cover, top plate, and foam (see “Top Cover and Foam" on
page 132).
4 Remove the plate tray from the tray base.
5 Remove the transport assembly, (see“Removing the sample transport" on
page 133).
6 Remove the sampling unit, (see “Removing the sampling unit" on page 134).
7 Remove the air channel.
8 Remove the peristaltic pump, (see “Peristaltic Pump" on page 128).
9 Remove the base plate of the pump with a small flat-head screwdriver.
10 Disconnect the peristaltic pump motor from the SUD board (labelled
“mixing M”).
11 Take out the motor and the holder.
12 Unscrew the 2 screws which hold the peristaltic pump motor.
13 Remove the peristaltic pump motor.
When required When defective.
Tools required 1/4 inch-5/16 inch wrench 8710-0510 (supplied in accessory kit)
4 mm open end wrench 8710-1534 (supplied in accessory kit)
Pozidrive screwdriver
Flat-head screwdriver (if interface board installed)
Parts required Peristaltic pump motor, 5065-4409
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