Gloria ProControl 100 Notice D'utilisation Et D'entretien page 13

4. Service
4.1 Diagnosis and rectification of break-downs
Faults
bad spray flow or pattern
tank cover lid
insufficient sealing
trigger control valve does
not shut off
spray or nozzle drips
pump does not build up
pressure
screwed connections
leaking
no indication on the
pressure gauge in spite
of existing pressure
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Cause (reasons)
- insufficient working
pressure
- nozzle blocked
- strainer blocked
- gasket defect
- cover lid is bent or
deformed
- gasket at valve seat
defective
- valve stem stiff because
o-rings are swollen up
- pump o-ring is dry
- pump o-ring is worn-out
- non return valve is leaky
- dirty or threads
damaged
- not tight
- incorrect assembly
- dirty or blocked
- inside defect
Measures
raise of pressure up to 55
lbs.
cleaning
cleaning
replace gasket
repair or replace
replace gasket
replace o-ring
grease
replace
if dirty clean
if defective replace
clean or replace
tighten up
always screw threads
straight and easily
cleaning of bore at
pressure gauge nipple
replace by new pressure
gauge