Toro Workman 3000 Series Service Manual page 386

1. Barrel
2. Shaft
3. Dust seal
4. Backup ring
5. O–ring seal
Inspection
1. Inspect head (Item 6), piston (Item 11) and shaft (Item
1) for excessive scoring, pitting or wear. Replace any
worn or damaged parts.
2. Inspect inside of barrel for scoring, pitting or out–of–
round and replace if worn or damaged.
Assembly
1. Use a new repair kit (Items 3 – 5 & 8 – 10) to replace
all o–rings. seals and back–up rings. Apply clean hy­
draulic oil to all o–rings, seals, back–up rings before
installing.
2. Install head (Item 6) with new seals onto shaft (Item
2). Install piston (Item 11) with new seals and back–ups
onto shaft. Install piston onto shaft and secure with nut
(Item 12).
3. Coat all cylinder parts with clean hydraulic oil. Slide
shaft assembly and head into barrel, being careful not to
damage seals.
Hydraulic System
13
1
10
11
12
Figure 24
6. Head
7. Retaining ring
8. Backup ring
9. O–ring seal
Page 9 – 26
7
8
9
8
9
8
10. O–ring seal
11. Piston
12. Nut
13. Warning decal
4. Install retaining ring (Item 7) to secure assembly in
barrel. To install retaining ring, align key slot in head with
access groove in barrel. Rotate head clockwise as far as
the retaining ring will allow. Offset end of retaining ring
will be against left side of barrel groove as shown.
Spanner wrench
Retaining ring
(Offset end against left
side of barrel groove
after installing)
Figure 25
Installing retaining ring
2
3
4
5
6
Workman 3000/4000 Series