Instruction Manual

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Operating Instructions
SYMPTOM PROBABLE CAUSE(S) CORRECTIVE ACTION
The pump does not draw water. One or more valves are seating improperly. Remove valve and check for debris.
Remove any debris found. Examine the
valve seatings and clean them.
Suction line in plugged or collapsed.
Clogged strainer.
Examine and clean the suction line.
Clean the strainer.
The liquid ow is irregular. The charge in the pulsation dampener is
incorrect.
Check the pressure in the pulsation
dampener. (It should be 20% of your spray
pressure.)
One or more valves are seating improperly. Remove valve and check for debris.
Remove any debris found. Examine the
valve seatings and clean them.
Output drops and the pump is noisy. The oil level is too low. Add oil to the correct level (halfway up the
sight tube).
Oil comes out of the discharge port or oil is
a milky color.
One or more diaphragms have split. Remove the manifold and heads. Drain the
oil and clean the crankcase of water.
Replace the diaphragms, heads, and
manifold. Rell with Hyrpo Oil (part number
2160-0038).
Form L-1385 (05/14)