7E
TROUBLE SHOOTING YOUR SPRAYER
Symptom Possible Reason Correction
Diffculty actuating the pumphandle and/or Upper valve plate sticks Clean or replace valve plate
pump handle moves itself back up. Piston cylinder outlet passage clogged Clean piston cylinder outlet passage
Little or no resistance during Damaged/worn/dirty/upper valve plate Clean or Replace Valve Plate
repeated pumping – no pressure. Piston Collar or piston cylinder Replace Piston/ Diaphragm assembly
assembly is worn
Too much resistance after just a few Not enough air cushion in the pressure Release pressure in pressure chamber
pumping strokes but pressure only lasts chamber Remove the hose & drain pressure
briefy. chamber. Reconnect the hose.
Upper valve plate damaged/worn/dirty Clean or replace upper valve plate
Upward pumping action is more diffcult Vent hole is clogged Clear the vent hole in cap
and/orpump handle moves itself backdown. Lower valve plate sticks Clean or replace the valve plate
Clogged intake filter Clean the In-Tank filter
Piston cylinder intake clogged Clean piston cylinder intake
Leaks at Piston Cylinder Damaged/worn/Dirty Collar Replace Piston/ Diaphragm assembly
Damaged Piston Cylinder Replace Piston/ Diaphragm assembly
Damaged Piston Replace Piston/ Diaphragm assembly
Shut-off leaks Connections loose Tighten connection
Worn or damaged shut-off Rebuild or replace the shut-off valve
Wand assembly leaks Connections loose Tighten connection
Damaged or worn o-ring/gasket Replace o-ring/gasket
Nozzle assembly leaks Connections loose Tighten connection
Damaged or worn o-ring/gasket Replace o-ring/gasket
Leak between pump assembly Pump clamp loose Tighten clamp
and tank O-ring worn or damaged Replace pressure chamber oring
Hose leaking at tank outlet Hose clamp loose Tighten clamp
Hose leaking at shut-off Connection loose Tighten retaining nut
Damaged or worn o-ring/gasket Replace o-ring/gasket
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