ESAB PCC-10 Manual De Instrucciones página 24

SeCTION 3
3.4 Pump Pressure Adjustment
Pump pressure is pre-set at the factory for 130 psi (9 bar), output coolant pressure may be adjusted by opening
or closing the by-pass valve on the pump. The by-pass valve adjustment screw is located under the large acorn
nut on the pump body. Pressure can be increased by turning the screw clockwise and decreased by turning the
screw counter-clockwise. When replacing acorn nut and gasket, tighten firmly to prevent air from being drawn
into pump. Do not exceed the recommended delivery pressures to torches as outlined by the manufac-
turer!
Do not operate the pump into a closed discharge line. If operated for more than a few minutes against a closed
discharge, the resulting heat build-up will cause rapid wear of the mechanical seal and eventual seizure and
failure of the pump. A thermostat will stop the pump motor if the pump temperature goes over 131 deg. F (55
deg. C).
CAuTION
Be careful not to touch the pump motor when adjusting pump pres-
sure as it can get very hot, up to 100 deg. f (38 deg. C). above ambient
temperature.
by-pass valve adjustment screw is located under
the large acorn nut
pump motor
24
INSTAllATION