Subaru Robin PKX201 - Manual (Page 70)

Semi Trash Pumps - PKX Service
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37. Remove the volute and re-tighten the impeller by hit-
ting the blades in a clockwise direction. It should be tight
enough that you should not be able to turn it loose by
hand.
38. Re-install the volute into the outer case making sure
the slot is resting on the casting molded into the outer
case.
39. It is important that the volute slot matches with the
cast in notch in the outer pump housing.
40. Replace the cover and volute onto the pump back-
plate. Install the four outer pump case bolts.