Subaru Robin PKX201 - Manual (Page 46)

Trash Pumps - PKX Service
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14. This is what a new seal will look like when taken out
of box. Compare it to the seal removed.
13. Pull the seal off the crankshaft and inspect for cracks,
burn marks and overall condition.
15. Should it become necessary to remove the pump
back plate then loosen and remove the four bolts that
hold it to the engine. These are special bolts with spe-
cial washers. Make sure to replace with same part
numbers if needed.
16. Loosen the two bolts that hold back plate to the frame
and prepare to tilt the engine back slightly for removal
of back plate housing.