JLG 18RS Service Manual - Manual (Page 74)

SECTION 3 - CHASSIS & TURNTABLE
3-36 – JLG Lift – 3121284
8. Install worm (29), hex end first, into housing (4).
IF COMPRESSED AIR OR ELECTRICALLY OPERATED IMPACT WRENCH IS USED
FOR TIGHTENING THE BEARING ATTACHMENT BOLTS, THE TORQUE SETTING
ACCURACY OF THE TOOL SHOULD BE CHECKED PRIOR TO USE.
9. Install bearing cup (35) into worm bore of housing.
10. Install motor adapter (33) and 1 shim (34) to bore end of
housing using Install bearing (30) with small end facing
to outside of machine on hex end of worm (29). Place
bearing cup (32) over bearing and lightly tap cup into
bore using a soft hammer.
11. Install worm cap (26) using shims (27) to achieve 0.000
to 0.001" end play. Use 3/4" bolts (25) and sealant.
Torque to 80 ft-lb (108.5 Nm).
12. Install pinion/gear assembly in housing so gear teeth
mesh with worm gear teeth.
13. Apply silicone sealant to housing surface where cap
assembly touch. This includes vertical surface.
14. Place gear cap assembly over pinion assembly and
install shims set aside in step 6.
15. Install eight 3/8" 12 point screws (11) and torque to 60
ft-lb (81 Nm).
16. Install 2 small screws (8).
17. Install seal (28) in worm cap (26) at hex end of worm.
18. Install motor (3) to adapter (33) with two 1/2" bolts (1),
washers (2), and sealant. Torque to 80 ft-lb (108 Nm).
19. Install turntable bearing (7) to housing (4) with two 5/16"
bolts (5) and washers (6).
20. Fill worm gear with Mobil SHC 007 grease.
21. Grease pinion gear with Lubriplate No. 930-AA.
Swing Bearing Torque Values
1. Outer Race - 280 Nm (206.5 ft.lbs.) w/JLG Threadlocker
P/N 0100019.
2. Inner Race - 280 Nm (206.5 ft.lbs.) w/JLG Threadlocker P/
N 0100019.
3. See Swing Bearing Torquing Sequence.
CHECK THE INNER AND OUTER SWING BEARING BOLTS FOR MISSING OR
LOOSENESS AFTER FIRST 50 HOURS OF OPERATION, AND EVERY 600 HOURS
THEREAFTER.
Pinion Lube Point
Worm Gear
Lube Point
Bearing
Lube Point Bearing
Lube Point
Figure 3-11. Swing Bearing Lubrication Points
1
2
3 4
5
6
7
8
9
10
11
12 13
14
15
16
17
18
21
1
2
3
4
5
6
7
8
9
10
11
12 13
14
15
16
17
18
19
20
22
23
Figure 3-11. Swing Bearing Torque Sequence