9 • DP/SP Service
Doc. 065031-04 1/08 277
5. The priming valve knob is located on the secondary pump head (see
Figure 9-9
). To remove the knob, turn it counterclockwise all the way and
then pull it straight off the pump head.
6. Pull the old seal off the end of the priming valve knob.
7. When correctly installed, the groove in the priming valve knob seal faces
away from the knob (see Figure 9-10
). Hold the new seal (P/N 063382)
carefully, to avoid scratching or nicking the sides, and then slide the seal onto
the knob.
Figure 9-9. DP/SP Priming Valve
Do not use a sharp tool (such as tweezers) to install the seal. This may
scratch the seal and the surface of the priming valve knob. These
scratches will prevent a proper seal and cause leakage.
Figure 9-10. Replacing the Priming Valve Knob Seal
Secondary
Pump Head
Priming Valve
Priming Valve Knob Seal
(P/N 063382)
Insert seal with groove facin
away from knob
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