Pump Pressure Adjustment; Pump Motor - ESAB PCC-10 Manuel D'instructions

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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

INSTAllATION

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