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P a g e
Setting the small emulsion pump bypass pressure
The emulsion pump bypass pressure is set at the factory and normally
will not need to be adjusted. However, if the bypass pressure is set so
emulsion bypasses within the pump at too low of a pressure, the flow
rate will not be accurate. This is a problem with the small emulsion
pump, which requires accurate flow for accurate control of the
application rate.
Check and reset the small emulsion pump bypass pressure as follows:
1.
With the paver shut off, remove the screw cap that covers the
adjustment screw on the small emulsion pump relief valve.
2.
Loosen the lock nut on the adjustment screw.
3.
Turn the bypass adjustment screw all the way clockwise.
4.
Tighten the lock nut.
5.
Reinstall the adjustment screw cap.
