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Lift Cylinder(SP 5020)
Removal
1. Before removing any parts from the hydraulic sys-
tem, park the machine on a level surface, engage the
parking brake, lower the cutting units, and stop the en
-
gine.
CAUTION
draulic oil. Controls must be operated with the
tion switch.
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
ignition switch in OFF. Remove key from the igni-
2. Label all hydraulic connections for reassembly.
3. Disconnect hydraulic hoses and O–rings from the
hydraulic fittings. Allow hoses to drain into a suitable
container.
4. Put caps or plugs on disconnected hoses and fit-
tings to prevent contamination.
5. Remove both hair pins from the cylinder pin. Pull
cylinder pin from the lift cylinder, spacer, and lift arm.
6. Support lift cylinder to prevent it from dropping.
A. Remove cap screw and flat washer from the cyl-
inder support.
B. Remove lift cylinder from the support.
Installation
1. Position lift cylinder to the frame. Install lift cylinder
to to the cylinder support. Secure cylinder to the support
with flat washer and cap screw.
2. Position clevis of the lift cylinder to the lift arm and
spacer. Insert cylinder pin through the cylinder clevis, lift
arm, and spacer. Secure cylinder pin with both hair pins.
3. Remove caps or plugs from the disconnected hoses
and fittings. Connect hydraulic hoses and O–rings to the
hydraulic fittings. Tighten hose connections.
4. Charge hydraulic system (see Charge Hydraulic
System).
10
18
1
2
3
4
12
11
5
16
13
15
14
17
13
9
Figure 29
10. Protective sleeve
11. Cap screw
12. Washer
13. 90
o
hydraulic fitting
14. Hydraulic hose
15. O–ring
16. O–ring
17. Lock nut
18. Hair pin
1. Spacer
2. Hydraulic cylinder
3. Cap screw
4. Cylinder pin
5. Hydraulic hose
6. Cylinder support
7. Not used
8. Not used
9. Cable tie
Hydraulic System (Rev. A) Page 4 – 40 Sand Pro 2020/3020/5020