Checking the Functional Element Orifice (For Red Jacket Pumps)
Replacing The WPLLD Sensor
4
Figure 1. Disabling the Functional Element
WPLLD Sensor Removal
1.
Ensure power to the STP is turned OFF.
2.
Disconnect the sensing line from the WPLLD sensor.
3.
Remove the capacitor cover bracket from the WPLLD sensor and set it (and
pump capacitor cover) aside for reinstallation.
4.
Unscrew the WPLLD sensor from the pump.
5.
Remove the plastic shield from the capacitor housing and disconnect the sensor
wires from the pump wires.
WARNING
This system contains hazardous fuels.
If the functional element leaks, serious injury or death from fire or
explosion, or environmental contamination may result.
When reinstalling:
1. Follow instructions completely.
2. Check for leaks after the system is pressurized.
slld\frms2rj.eps
Remove
spring/
piston
assembly
Rubber
diaphragm
Red Jacket Pump With Older Functional Element
OFF
Summary of Contents for WPLLD
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