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Maintenance
Replacing Moldboard Lift
Cylinders
Removal
1.
Refer to Preparing Grader for Maintenance on
page 5-6 and park grader.
2. Thoroughly clean moldboard lift cylinders (Figure
5-44), especially areas surrounding hydraulic
hoses and fittings.
3. Lower blade to float position.
4. Remove cotter pins from ball joints.
5. Use a ball joint tool to unhook lower ball joints.
6. Remove side plate (half) from moldboard lift cylinder
at rod end only.
7.
Raise cylinders to close them.
8. Tag hydraulic hoses for identification during
installation.
9. Disconnect hydraulic hoses.
10. Immediately plug hoses and cylinder ports to
prevent contamination of hydraulic system.
Bolts and Washers
Side plate
(for Blade Lift Trunnion)
Figure 5-43. Lift Cylinder
11. While supporting moldboard lift cylinder, remove
bolts from trunion shaft assembly.
12. Remove moldboard lift cylinder (Figure 5-44).
13. Check bushings and bearings assembly for damage
and ensure they still fit snugly on the cylinder.
14. Ensure ball joint is clean prior to installation/re-
greasing.
15. Inspect hydraulic fittings for damage and debris.
5-40
16. Remove fittings for reuse in the replacement
17. Inspect rod end for excessive wear, play, and
Installation
NOTE: Rod end fittings have small holes to slow
18. Refer to Preparing Grader for Maintenance on
19. Install fittings on replacement cylinder.
20. Install rod end on new cylinder.
21. If removed, install mounting bushings.
22. Position lift cylinder in upper mount and secure
23. Attach ball joint to mount and secure with slotted
24. Use tags created during removal to properly
25. Use a grease gun to lubricate cylinder swivel joints.
26. Start motor grader and check operation.
27. Repair leaks as necessary.
Replacing Moldboard Cutting
Edge
NOTE: Raise moldboard (Figure 5-42) and support
Slotted Hex Nut
and Cotter Pin
Moldboard
(Ghosted)
Removal
1.
Ball Joint
2. While supporting blade, remove blade mounting
3. Remove worn cutting edges.
4. Clean blade mounting surface thoroughly.
Installation
1.
2. Secure with mounting screws, lock washers, and
cylinder or replace as necessary.
damage.
down drop speed.
page 5-6 and park grader.
trunion shaft assembly with slotted hex nuts and
new bolts.
hex nuts and cotter pins.
connect hydraulic hoses to fittings.
with jack stands before shutting down
engine.
Refer to Preparing Grader for Maintenance on
page 5-6 and park grader.
screws, lock washers, and nuts.
Position replacement cutting edge on moldboard.
nuts.
LeeBoy Model 695 Motor Grader
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