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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
Hose leaking at shut-off Connection loose Tighten retaining nut
Damaged or worn o-ring/gasket Replace o-ring/gasket
Hose leaking at pump outlet Connection loose Tighten retaining nut
Damaged or worn o-ring/gasket Replace o-ring/gasket
Upward pumping action difficult Inlet openings in bottom of piston Remove piston cylinder and clean openings
cylinder clogged (see section on Piston Cylinder Disassembly
and Rebuild)
Piston cylinder check valve stuck Remove piston cylinder check valve cartridge-
Clean, rebuild or replace (see section on Piston
Cylinder Disassembly and rebuild)
Downward pumping action difficult Pressure chamber check valve stuck Remove piston cylinder check valve cartridge-
Clean, rebuild or replace (see section on Piston
Cylinder Disassembly and rebuild)
Decline in pump performance (cannot Dirt or debris or wear in one or both Remove both check valves and clean, rebuild
achieve pressure and/or doesn’t hold check valves or replace (see section on Piston Cylinder
pressure) Disassembly and Rebuild and also section
on Pump Disassembly and rebuild)
Piston cylinder inside diameter Remove piston cylinder and check inside
surface worn diameter for wear- replace if necessary (see
section on Piston Cylinder Disassembly
and Rebuild)
Plunger cup worn Remove pump assembly and check plunger
cup for wear-replace if necessary (see section
on Pump Disassembly and Rebuild)
Damaged pressure chamber housing Remove pump assembly and replace
pressure chamber housing (see section on
Pump Disassembly and Rebuild)
Incorrect Assembly of plunger and/or Refer to section on Pump Disassembly and
check valve components Rebuild and Piston Cylinder Disassembly and
Rebuild
STORING / MAINTAINING YOUR SPRAYER
• The sprayer should be stored out of direct sunlight in a cool dry space.
• Before freezing weather make sure to drain all liquid in the tank, pump, pressure cylinder, hose,
shut-off valve, wand and nozzle, to avoid liquid expansion and cracking in the sprayer components
(See “Cleaning” section). Lock the shut-off valve in the “open” position.
• When service is required call your nearest dealer and always insist on original manufactured
replacement parts.
• Inspect the hose, wand, pump, tank and shut-off valve for wear, damage or leaks on a regular basis
and repair defects promptly.
• Every year prior to spraying remove felt gasket (see Pump Disassembly and Rebuild) and saturate
with a light oil. Oil periodically thru out the season as needed.
TROUBLE SHOOTING YOUR SPRAYER
Symptom Possible Reason Correction
6E