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TROUBLE SHOOTING
No Material. (Stalled Pump.)
• Obstructed Material Line. Disconnect air supply. Relieve all fluid
pressure in pump. Remove Obstruction in system.
No Material (Pump Continually Cycles.)
• Empty materialsupply. Shut downsystem. Replenish materialsup-
ply.
Material on one stroke only. (Fast Downstroke.)
• Item (11) ‘‘U” Cup is worn. Remove the ‘‘U” Cup. Replace ‘‘U” Cup.
Material on one stroke only. (Fast Upstroke.)
• Item (12) body seat is not properly seating on (15) valve seat. Re-
move the seat. Clean and inspect body and seat. If either is dam-
aged. replace with new parts.
PN 97999-661