Relief valve adjustment procedure, Warning, Caution – Gasboy XU2A User Manual
Page 15
MDE-4320 Gasboy UHF Pump, Blackmer® XU2A Rebuild Kit Installation Manual • June 2004
Page 15
Operation
Relief Valve Adjustment Procedure
Note: Numerical references are included to indicate part identification, reference the
exploded assembly drawing under
at the end of this manual.
1
To increase the pressure setting, remove the relief valve cap (1) and gasket (88) if equipped.
Turn the adjusting screw (2) inward, or clockwise. Inspect R/V cap gasket (88) and replace as
required. Reattach R/V cap gasket (88) and replace as required. Reattach R/V cap gasket and
R/V cap if equipped.
2
To decrease the pressure setting, remove the relief valve cap (1) and gasket (88) if equipped.
Turn the adjusting screw (2) outward, or counter clockwise. Inspect R/V cap gasket (88) and
replace as required. Reattach R/V cap gasket (88) and replace as required. Reattach R/V cap
gasket and R/V cap if equipped.
Refer to corresponding
for relief valve spring pressure ranges.
Relief valve cap is exposed to pumpage and will contain some fluid.
WARNING
!
Incorrect settings of the pressure relief valve can cause system component failure,
personal injury and property damage.
CAUTION
!