Page 22 - PBL71 OI/AXM630-EN AZTEC 600 SS (WIRO)

Aztec 600 ISE ammonia and fluoride
Single-stream ion-selective analyzers
3.6.3 Fitting Peristaltic Pump Pressure Plate
To prevent premature wear to the pump tubing, the analyzer is supplied from the factory with the pump tubing pressure plate not fitted. The pressure plate must be fitted and secured for the pump to function correctly – referring to Fig. 3.10:
1. Ensure pump tubing A is positioned correctly over pump capstan rollers B.
2. Ensure pump tubing sleeves C and shims D are fitted correctly in pump lower plate.
3. Fit pump pressure plate locking pin E to the pump pressure plate F as shown, ensuring that it does not protrude from the rear face of the pump pressure plate.
3 Installation
F
E
A
B
C
D
Note. During step 4, it is very important to ensure that:
– the pump tubing is not pinched
– the pump tubing remains correctly located over the pump capstan rollers
– each tube enters its respective groove in the pressure plate
– the sleeves and shims remain in position
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OI/AXM630–EN Rev. J
4. Position the pump pressure plate over the pump tubing and capstans and press down firmly until fully home, ensuring the pump tubing remains in position.
5. Press locking pin E fully home and turn 1/4 turn clockwise to lock the pump pressure plate in position.
Fig. 3.10 Fitting Peristaltic Pump Pressure Plate