Subaru Robin PKX201 - Manual (Page 53)

Trash Pumps - PKX Service
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41. This is what a new wear plate will look like. Compare it
to the one that was taken out.
44. Tighten the three bolts that hold the wear plate to the
volute.
42. Install the wear plate in the reverse order that is was
taken
out.
43. Apply a light or medium duty thread locker to the wear
plate bolts before tightening. This should be a service
replaceable thread locker as mentioned ealier.