Section 5 Maintenance; Cleaning Instructions - Hach QC8500 Series 2 User Manual

Section 5
Part name
Pump tubes
®
Teflon tubing
O-rings
Transmission tubing

5.1 Cleaning instructions

Component
Sampler
Dilutor
Pump
Injection valves
Manifolds
Detectors
Flow cells
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
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 Basic spare parts
Recommendations
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.
A new instrument includes spare Teflon
is low.
Manifold tubing: 0.8 mm ID
Low flow manifold tubing: 0.5 mm ID
Back-pressure loop: 0.5 mm ID
Restock O-rings when supply is low.
Restock transmission tubing when supply is low.
Refer to Section 7 on page 83
complete parts list.
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 Maintenance schedule
Service
Clean surfaces
Clean rods/moving parts
Clean surfaces
Prime dilutor with DI water after using any
other diluent
Spray silicone on cloth and rub on rollers
Replace pump tubes
Clean surfaces
Rinse cartridges
Clean pump tube adapters
Clean ports and valve connectors
Clean unions and tees
Replace O-rings
Replace all tubing
Dry and clean all surfaces
Replace flares and O-rings
®
8500 Series 2 operation at maximum potential.
®
tubing. Restock Teflon tubing when supply
to obtain part numbers. Call the manufacturer to obtain a
(Table 11) can be used as a quick reference.
Daily Weekly
X
X
X
X
X
X
(Table
Every 6
Monthly
months
X
X
X
X
X
X
X
10).
Yearly
X
X
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