Cornelius QUEST ELITE 4000 Service Manual page 22

Quest Elite 4000 Service Manual
Publication Number: 620048956SER
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3. Remove ONLY the rear pump body half to reveal the pump tubing and rollers
(See Figure 16).
4. Remove the old pump tubing from the pump body. If the roller assembly comes
out with the tubing, place it back into the pump housing. Make sure to align the
roller assembly shaft keyway to the motor shaft so that the two interlock.
5. Firmly press the new tubing into the pump body around the roller assembly,
making sure to keep the protruding ends even with each other.
6. Once the tubing is in place, hold the tubing with one hand, capture the lower
part of the tubing with the outer housing, then proceed to capture the shaft
of the roller assembly and push the rear pump housing into place. Make
sure to capture the tubing within the body and not pinch it between the
halves. Do not use any tool other than your finger tips to manipulate the
tubing into the housing or you may damage the tubing.
Pump Tubing
7. While holding the pump halves together with your hand, reinsert the four
thumb screws (See Figure 15) and tighten using a cr i ss-cross pattern as
shown. The thumb screws should be tightened about 1/4 turn beyond snug.
8. Insert the two concentrate delivery tubes into the pump tubing ends and
secure them using the new hose clamps supplied in the kit. Be sure to use
pliers to squeeze and tighten the hose clamps.
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Figure 15. Pump Body Screws
Roller
Assembly
Figure 16. Pump Assembly
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