SAMES KREMLIN 20F50 - Page 49

582156110-EN-indC-Pump-20F50 pH.docx 20/11/2020
49
Defaults Possible causes Remedies
The piston goes up quickly
Exhaust valve worn or
damaged
Check and replace the exhaust
valve.
A foreign product obstructs
the exhaust valve
Check and clean.
Piston seals or seals incorrecty
mounted or damaged
Check the mounting; change the
seals if necessary.
The piston goes up and
down at different speeds
Valves, piston seals or
cylinder
worn
Replace the parts.
Seals incorrectly mounted or
damaged
Check the mounting; change the
seals if necessary.
Abnormal operating after
racing or too extreme
temperature
Piston seals too tight,
damaged
Check mounting, reduce pumping
race. Replace parts if necessary.
Material flow rate drop Leakage during the exhaust
Check the piston seals
; replace them
if necessary.
Internal parts of the motor
failing
Check the operating of the motor.
Defective coupling Check the coupling.
Defective filter Check the filter.
Clogging of the filter element
Clean the filter element. Change it if
necessary.
Spraying trouble Defective spray gun
Refer to spray gun instruction
manual.