51
Section 5 Maintenance
DANGER
Only qualified personnel should conduct the tasks described in this section of
the manual.
Preventive maintenance is extremely important for long-term operation. The following tips
will help keep the QuikChem
®
8500 Series 2 operation at maximum potential.
Keep all modules clean and dry at all times. This will minimize the time needed for
maintenance and help avoid future repairs. The manufacturer recommends to begin a
weekly maintenance schedule and to keep a stock of basic spare parts (Table 10).
Refer to Section 7 on page 83 to obtain part numbers. Call the manufacturer to obtain a
complete parts list.
5.1 Cleaning instructions
Before beginning any cleaning or decontamination methods, verify with Technical Support
if the proposed cleaning method will not damage the equipment.
The general maintenance schedule (Table 11) can be used as a quick reference.
Table 10 Basic spare parts
Part name Recommendations
Pump tubes
Check the manifolds and make a list of the pump tube colors. Green-green pump
tubes are the only spare tubes included with a new instrument.
Tefl o n
®
tubing
A new instrument includes spare Teflon
®
tubing. Restock Teflon tubing when supply
is low.
Manifold tubing: 0.8 mm ID
Low flow manifold tubing: 0.5 mm ID
Back-pressure loop: 0.5 mm ID
O-rings Restock O-rings when supply is low.
Transmission tubing Restock transmission tubing when supply is low.
Table 11 Maintenance schedule
Component Service Daily Weekly Monthly
Every 6
months
Yearly
Sampler
Clean surfaces X
Clean rods/moving parts X
Dilutor
Clean surfaces X
Prime dilutor with DI water after using any
other diluent
X
Pump
Spray silicone on cloth and rub on rollers X
Replace pump tubes X
Clean surfaces X
Rinse cartridges X
Clean pump tube adapters X
Injection valves Clean ports and valve connectors X
Manifolds
Clean unions and tees X
Replace O-rings X
Replace all tubing X
Detectors Dry and clean all surfaces X
Flow cells Replace flares and O-rings X
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