JLG 660SJ Service Manual - Manual (Page 75)

SECTION 3 - CHASSIS & TURNTABLE
3121298 – JLG Lift – 3-31
18. Cover shaft splines with an installation sleeve. Install a
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).
Figure 3-40. Shaft Seal
19. Install remaining plugs and fittings to housing. Refer to
drawing below for wrench sizes and installation torques.
Figure 3-41. Plugs and Fittings Installation
20. Install orifice poppet (30).
Figure 3-42. Loop Flushing Spool
21. Install shift spool (31).
22. Install spring retaining washers on springs (32 and 33).
23. Carefully install centering springs (34, 35, and 36).
24. Install new O-rings (37, 38, and 39).
25. Using a 5/8 in wrench torque plug (40) to 20 ft-lb (27
Nm).
26. Using a 11/16 in wrench, torque plugs (41 and 42) to 27
ft-lb (37 Nm).
27. Shaft Seal
28. Seal Support Washer
29. Snap Ring
27 28 29
1/4 in
(45 Nm) 33 ft-lb
5/16 in
(85 Nm) 63 ft-lb
5/16 in
(85 Nm) 63 ft-lb
1/4 in
(45 Nm) 33 ft-lb
9/16 in
(170 Nm)
125 ft-lb
3 mm
(2 - 3 Nm)
1.5 - 2.5 ft-lb
30. Orifice Poppet
31. Shift Spool
32. Spring
33. Spring 34. Spring
35. Spring
36. Spring 37. O-ring
38. O-ring
39. O-ring 40. Plug
41. Plug
42. Plug
39
40
34
30
41
37
36
33
42
38
35
32
31
(27 Nm)
20 ft-lb
5/8 in
(37 Nm)
(37 Nm)
27 ft-lb
27 ft-lb
11/16 in
11/16 in