Subaru Robin PKX201 - Manual (Page 52)

Trash Pumps - PKX Service
- 52 -
37. This is good time to check the O-ring that seals the
volute to the from pump housing. Check for nicks,
cracks, and tearing. Replace if necessary.
38. If the wear plate needs to be removed , loosen and
remove the three bolts that hold the wear plate to the
volute housing.
39. Remove the wear plate and inspect its condition. The
surface should be even and not have gouges or
uneven wear.
40. This is also a good time to check the condition of the
outer pump housing O-ring. Check for nicks, tears and
gouging.