Toro 22317 Service Manual page 42

INSPECT BARREL ASSEMBLY: Visually inspect the
inside bore for scratches and pits. There should
be no scratches or pits deep enough to catch the
fingernail. Scratches that catch the fingernail but
are less than 0.5" (1.27cm) and primarily in the
circumferential direction are acceptable provided
they cannot cut the piston seal. In the event that an
unacceptable condition occurs, the cylinder should
be replaced.
6. Remove the back-up washer (Fig. 0065).
Toro Wheeled CUL Service Manual
IMG-0377a
Fig. 0065
ALL UNITS/GENERAL
7. Remove the second back-up washer (Fig. 0066).
8. Remove the o-ring located around the PSP seal
(Fig. 0067).
IMG-0378a
Fig. 0066
IMG-0379a
Fig. 0067
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