Toro 22317 Service Manual page 41

ALL UNITS/GENERAL
3. Use a spanner wrench installed in the holes pro-
vided. Unscrew the head (counterclockwise from the
ram end) (Fig. 0062).
4. Pull out the cylinder rod to remove the piston and
head assembly from the barrel (Fig. 0063).
5. Remove the barrel from the vise.
3/1-18
IMG-0374a
Fig. 0062
IMG-0375a
Fig. 0063
Hydraulic Cylinder Assembly (Fig. 0064):
B
A. Barrel
B. Piston
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.
Toro Wheeled CUL Service Manual
A
D
C
IMG-0376a
Fig. 0064
C. Head
D. Cylinder rod