Lift Cylinder Service - Toro Pro Sweep 5200 Service Manual

Lift Cylinder Service

4
250 to 300 ft- -lb
(339 to 407 N- -m)
1. Wear ring
2. Seal
3. O- -ring
4. Tube
5. Rod
Disassembly (Fig. 16)
1. Remove oil from the lift cylinder into a drain pan by
slowly pumping the cylinder rod. Plug ports and clean
the outside of the lift cylinder.
IMPORTANT: Prevent damage when clamping the
lift cylinder into a vise; clamp on the pivot only.
2. Mount lift cylinder in a vise so that the shaft end tilts
up slightly.
3. Using a spanner wrench, rotate head (item 9) clock-
wise until the edge of the retaining ring appears in the
tube opening. Insert a screwdriver under the beveled
edge of the retaining ring to start the retaining ring
through the tube opening. Rotate the head counter--
clockwise to remove retaining ring (item 8) as shown in
Figure 17.
4. Grasp end of rod; extract rod assembly and head by
carefully twisting and pulling on the rod.
Hydraulic System
11
1
13
12
6. O- -ring
7. Backup ring
8. Retaining ring
9. Head
2
7
3
8
9
6
Figure 16
Spanner
wrench
Retaining
ring
IMPORTANT: Do not clamp vise jaws against rod
surface. Protect rod surface before mounting in
vise.
5. Mount rod securely in a vise by clamping vise on the
flats of the pivot. Remove lock nut (item 13) and carefully
slide piston and head from the rod.
Rev. A
Page 3 - - 24
10
5
10. Wiper
11. Breather plug
12. Piston
13. Lock nut
Figure 17
Pro Sweep 5200