JLG 510AJ Service Manual - Manual (Page 88)

SECTION 3 - CHASSIS AND TURNTABLE
3-46 – JLG Lift – 3121181
13. Using an 8 mm internal hex wrench, remove endcap
screws (22).
14. Remove endcap (23). Remove O-ring (24) from housing
or endcap.
When endcap screws are removed, pressure from servo
spring will cause endcap to bind on shaft. Press down on
portion of endcap covering servo piston and hold end-
cap level while removing.
TAKE CARE NOT TO SCRATCH THE SURFACE OF THE VALVE PLATE.
15. Remove valve plate (25) and timing pin (26) from end-
cap.
Each displacement has a unique valve plate. For identifi-
cation, the last two digits of the valve plate part number
are stamped on its surface.
16. Remove and discard O-rings (27, 28).
17. Remove rear shaft bearing (29) from endcap with a bear-
ing puller.
Bearing may be difficult to remove with a puller. Try this
as an alternative: Pack bearing cavity with heavy grease.
After shaft is removed, insert it into bearing cavity and
tap lightly with a soft mallet on the splined end. Grease
will force the bearing out. Use caution not to drive bear-
ing past rear shaft journal as the bearing may become
trapped on shaft and damaged.
18. Remove minimum angle stop (29) and servo spring (30)
from the housing.
24
22
23
22. Screw
23. End Cap
24. O-ring
Figure 3-29. End Cap
26
28
29
30
29
27
25
25. Valve Plate
26. End Cap
27. O-ring
28. O-ring
29. Angle Stop
30. Servo Spring
Figure 3-30. Valve Plate & Rear Shaft Bearing