Shindaiwa SP41BPS Manual De Uso Y Cuidado página 8

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