Shaft Seal - JLG 660SJ Service And Maintenance Manual

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).

27. Shaft Seal

28. Seal Support Washer
29. Snap Ring
Figure 3-40. Shaft Seal
19. Install remaining plugs and fittings to housing. Refer to
drawing below for wrench sizes and installation torques.
5/16 in
(85 Nm)
63 ft-lb
5/16 in
63 ft-lb (85 Nm)
Figure 3-41. Plugs and Fittings Installation
3121298
27
28 29
1/4 in
33 ft-lb (45 Nm)
9/16 in
125 ft-lb
(170 Nm)
3 mm
1.5 - 2.5 ft-lb
(2 - 3 Nm)
1/4 in
33 ft-lb (45 Nm)
– JLG Lift –
SECTION 3 - CHASSIS & TURNTABLE
20. Install orifice poppet (30).
39
34
30
40
5/8 in
20 ft-lb
(27 Nm)
31
32
35
38
42
11/16 in
27 ft-lb
(37 Nm)
30. Orifice Poppet 34. Spring
31. Shift Spool 35. Spring
32. Spring 36. Spring
33. Spring
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).
37
36
33
41
11/16 in
27 ft-lb
(37 Nm)
37. O-ring 40. Plug
38. O-ring 41. Plug
39. O-ring 42. Plug
3-31