Troubleshooting Guide
Problem
Possible Cause / Solution
Startup
Maintenance
A) Sprayer sputtering
B) No output / unit will not spray
C) Tank will not pressurize and/or hold pressure
1
1
2
2
2
Possible Cause / Solution
Startup
Maintenance
1. Not enough air pressure
Pump up the sprayer several strokes
Less liquid in the tank will allow for more air pressure to
build and spray for longer
The air relief valve will rise when maximum pressure is
achieved
2. Air leaks due to loose lid, worn or damaged
components/fittings
Ensure lid is snug, but not overtight. Lubricate the lid
and pressure relief o-rings. Order repair kit and replace
damaged o-rings, gaskets, umbrella valve etc. See page
3 for part numbers
Refer to the Pump-Up O-Ring Replacement Guide
http://appequip.net/uploads/documents/pump-up-o-ring-
replacement.pdf
The o-ring on the piston (inside the shaft) creates
pressure and should be kept well-lubricated since it is
exposed to friction from pumping. Replace as needed.
The umbrella valve on the bottom of the piston shaft
holds pressure in the tank and needs to form a tight
seal. Do not scratch the valve seat! Replace as
needed.
Ensure that your chemical and lubricant are compatible
with the o-ring seals for this equipment. Incompatible
chemicals or lubricants can quickly degrade the o-rings.
PREVENTIVE MAINTENANCE: * Prior to storage, empty, clean and dry the foamer. * Lubricate o-ring in pressure relief valve and the piston/cylinder
with a compatible non-water soluble grease (such as a silicone lubricant) on a regular basis. * Lubricate tank cap threads and both sides of the gasket
to achieve a tight seal and to ease tightening and loosening. * Replace cracked or damaged seals before use.
925025 • Pump Up Sprayer Pro, 3 Gallon
June 24th 2022
- Page 4 -
