JLG 510AJ Service Manual - Manual (Page 96)

SECTION 3 - CHASSIS AND TURNTABLE
3-54 – JLG Lift – 3121181
NOTE: Improper assembly of internal components may prevent
endcap from seating properly.
15. Install endcap (25) on housing with endcap screws (26).
Check endcap will properly seat on housing without
interference. Ensure O-rings seat properly when install-
ing endcap.
16. Using an 8 mm internal hex wrench, tighten endcap
screws. Tighten screws in opposite corners slowly and
evenly to compress servo spring and properly seat the
endcap. Torque endcap screws 35-45 ft.lbs. (47-61 Nm).
17. Before installing shaft seal, ensure shaft turns smoothly
with less than 120 in-lb (13.5 Nm) of force. If shaft does
not turn smoothly within specified maximum force, dis-
assemble and check unit.
18. Cover shaft splines with an installation sleeve. Install
new shaft seal (27) with cup side facing motor. Press seal
in housing until it bottoms out. Press evenly to avoid
binding and damaging seal. Install seal support washer
(28) and snap ring (29).
19. Install remaining plugs and fittings to housing. Refer to
drawing below for wrench sizes and installation torques.
26
25
8 mm
(47-61 Nm)
35-45 ft.lbs.
25. End Cap
26. Screw
Figure 3-43. End Cap
29
28
27
27. Shaft Seal
28. Seal Support Washer 29. Snap Ring
Figure 3-44. Shaft Seal
1/4 in
(45 Nm)
33 ft-lb
5/16 in
(85 Nm) 63 ft-lb
5/16in
(85 Nm) 63 ft-lb
1/4 in
(45 Nm)
33 ft-lb
9/16 in
(170 Nm)
125 ft-lb
3 mm
(2 to 3.4 Nm)
1.5 to 2.5 ft-lb
Figure 3-45. Plugs and Fittings Installation