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Spray Pattern

Increase pumping speed to 15-60 times per minute for used nozzle; 30-60 times per minute for new nozzles. At certain speeds, nozzle should "shudder" when spraying. Check spray pattern at this speed. If pattern is not correct, clean or replace nozzle. See Fig 1.

Fig 1: Injection Nozzle Spray Patterns Install tester as shown.
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