5. Apply silicone grease to the O-ring.
6. Install the desiccant tube in the controller.
Figure 13 Desiccant cartridge
1 Plug 3 O-ring
2 Desiccant tube 4 Desiccant window
Pump maintenance
C A U T I O N
Pinch hazard. Remove power from the instrument before maintenance or service activities are done.
Replace the pump tubing
N O T I C E
Use of tubing other than that supplied by the manufacturer can cause excessive wear on mechanical parts and/or
poor pump performance.
Examine the pump tubing for wear where the rollers rub against the tubing. Replace the tubing when
the tubing shows signs of wear.
Pre-requisites:
• Pump tubing—pre-cut or bulk 4.6 m or 15.2 m (15 ft or 50 ft)
1. Disconnect the power to the controller.
2. If the bulk tubing is used, cut the tubing and add alignment dots. Refer to Figure 14.
3. Remove the pump tubing as shown in the illustrated steps that follow.
4. Clean the silicone residue from the interior of the pump housing and from the rollers.
5. Install the new pump tubing as shown in the illustrated steps that follow.
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