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4” Petroleum & AG
Figure 2.14 Functional Element cap and adjustment screw
A
DJUSTING THE
F
UNCTIONAL
E
LEMENT
ALWAYS DISCONNECT and LOCK or TAG OUT the power
before starting to service pump.
The Functional Element contained in this package is an adjustable model. All new
Functional Elements are factory set at relief pressures of 11.5 (79 kPa) to 16 psi (93 kPa)
but can be adjusted to a maximum of approximately 30 psi (207 kPa) by turning down the
adjustment screw.
This adjustment feature allows the use of the Red Jacket pump with electronic line leak
detection systems that require higher relief pressures and enhances performance of
electronic line leak detection systems where field conditions have necessitated minor
adjustments to the relief pressure.
To adjust the relief pressure:
1:
Remove the cap (Fig. 2.14).
2:
Turn down the adjustment screw (Fig. 2.14). Tightening the screw clockwise will
increase the pressure. When the adjusting screw is fully down, the relief pressure is
approximately 30 psi (207 kPa). Positions between fully up and fully down will result
in relief pressures between approximately 3 psi (21 kPa) and 30 psi (207 kPa).
3:
Replace cap by turning it until it touches the functional element body. Hand
tightening is sufficient as the o-ring completes the seal when it is trapped between
the body and cap.
There are two methods to verify the relief pressure setting:
–
The pressure reading can be taken from the control unit of an electronic line
leak detection system if one is in operation. Observe the pressure that occurs
after the pump turns off— this is the adjusted relief pressure.
–
Pressure may be observed using a gauge attached at the impact valve or the
line test port at the pump. Observe the pressure that occurs after the pump
turns off. This is the adjusted relief pressure.
DANGER
CAP
ADJUSTMENT SCREW
Summary of Contents for Red Jacket AGUMP33R1
Page 14: ...8 4 Petroleum AG...
