Cornelius CH Series - Manual (Page 8)

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Pump Motor
The PUMP MOTOR should be lubricated with thirty drops of SAE 20 oil once a year.
Circulation System
The CIRCULATION SYSTEM should be drained and flushed periodically to avoid build up and possible flow re-
striction caused by contaminants.
Filters/Strainers
The FILTER located inside of the unit at the inlet of the pump should be cleaned periodically depending on ap-
plications. If a reduction in flow or cavitation of the pump occurs, remove the in--line FILTER, back-flush it with
water, rinse, and replace.