Toro 22317 Service Manual page 65

ALL UNITS/GENERAL
INSPECT ROD: There should be no scratches or pits
deep enough to catch the fingernail. Pits that go
to the base metal are unacceptable. Scratches
that catch the fingernail but are not to the base
metal, 0.5" (1.27 cm) long and primarily in the
circumferential direction are acceptable provided
they cannot cut the rod seal. Chrome should be
present over the entire surface of the rod and the
lack thereof is unacceptable. In the event that an
unacceptable condition occurs, the cylinder should
be replaced.
INSPECT HEAD: Visually inspect the inside bore
for scratches or polishing. Deep scratches are
unacceptable. Polishing indicates uneven loading
and when this occurs, the bore should be checked
for out-of-roundness. If out-of-round exceeds 0.007"
(.18mm), this is unacceptable. Check the condition
of the dynamic seals, looking particularly for metallic
particles embedded in the piston seal surface.
Remove the seals. Damage to the seal grooves,
particularly on the sealing surfaces, is unacceptable.
In the event that an unacceptable condition occurs,
the cylinder should be replaced.
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.
3/1-42
8. Remove the wear ring from the piston assembly
(Fig. 0149).
9. Carefully remove the seal from the piston assembly
(Fig. 0150).
Toro Wheeled CUL Service Manual
IMG-0331a
Fig. 0149
IMG-0330a
Fig. 0150