Toro ProCore SR Series Service Manual page 33

5. Remove retaining ring from groove in barrel.
6. Extract shaft, head and piston assembly by carefully
twisting and pulling on the shaft.
IMPORTANT: Do not clamp vise jaws against the
shaft surface. Clamp on the shaft clevis ONLY.
7. Mount shaft securely in a vise by clamping on the cle-
vis of the shaft. Remove lock nut and piston from the
shaft. Carefully slide head and retainer plate off the
shaft.
8. Taking care to not scratch or damage components,
remove and discard wiper, back--up rings and O--rings
from head and piston.
Inspection
CAUTION
Use eye protection such as goggles when using
compressed air to dry cylinder components.
1. Wash all cylinder components in clean solvent. Dry
parts with compressed air.
2. Inspect internal surface of barrel for deep scratches,
out--of--roundness and bending. Replace if worn or
damaged.
3. Inspect head, shaft and piston for excessive pitting,
scoring and wear. Replace any worn or damaged parts.
Assembly (Fig. 15)
1. Make sure all hydraulic cylinder parts are clean be-
fore assembly.
2. Coat new O--rings, back--up rings and wiper with
clean hydraulic oil. Carefully install new back--up rings,
O--rings and wiper to head and piston.
IMPORTANT: Do not clamp vise jaws against the
shaft surface. Clamp on the shaft clevis ONLY.
3. Mount shaft securely in a vise by clamping on the cle-
vis of the shaft.
A. Coat shaft with clean hydraulic oil.
B. Slide retainer plate and then head onto the shaft.
Make sure that threaded holes in head are toward
the retainer plate location.
C. Install piston onto the shaft and secure with lock
nut.
D. Remove shaft assembly from the vise.
ProCore SR Series
4. Coat all internal parts with a light coat of clean hy-
draulic oil. Slide shaft, head and piston assembly into
the barrel being careful not to damage the seals.
5. Secure head in barrel with retaining ring. Make sure
that retaining ring is fully seated in groove in barrel.
6. Pull shaft so that head is at top of barrel. Position re-
tainer plate to barrel and head. Secure retainer plate
with two (2) cap screws.
7. Slide spacers (item 16) into cylinder shaft clevis and
adapter on barrel end.
8. Install hydraulic top link to aerator and tractor (Fig.
16).
9
1. Hydraulic top link
2. Adapter
3. Pin
4. Cotter pin
5. Spacer
Page 3 - - 15
8
FRONT
1
5
5
4
6
7
Figure 16
6. Hydraulic hose
7. Hydraulic hose
8. Link
9. Lynch pin
Chassis
2
3