SECTION 3 - CHASSIS & TURNTABLE
3121160
3-35
Disassembly
NOTE:
Removal of the endcap voids warranty.
During assembly, coat all moving parts with a film of clean
hydraulic oil. This assures that these parts will be lubricated
during start-up.
Replace all o-rings and gaskets.
It is recommended that all o-rings be replaced. Lightly
lubricate all o-rings with clean petroleum jelly prior to
assembly.
1.
Using a 11/16 in wrench remove plug (1) and (2).
2.
Using a 5/8 in hex wrench remove plug (3).
3.
Remove o-rings (4, 5, and 6).
4.
Using pliers, remove centering springs (7, 8, and 9).
5.
Remove spring retaining washers (10 and 11).
6.
Remove shift spool (12).
7.
Remove orifice poppet (13).
8.
Remove all fittings from the unit. Discard any O-rings on
the fittings.
9.
Using an 11/16 in. hex wrench, loosen the speed sensor
lock nut (14) if equipped. Then remove the speed sensor
using a Vi in. hex wrench. Units without speed sensor
have an o-ring plug (15) installed in that location;
remove it with a Va in. internal hex wrench.
10.
Using a 1/4 in. internal hex wrench, remove control line
plugs (16, 17). Discard o-rings. Using a 3 mm hex
wrench, remove cavity plug (18, if equipped with two-
line control) from X2 cavity.
11.
Using a 5/16 in. internal hex wrench, remove drain plugs
(19, 20). Discard o-rings.
12.
Using a 9/16 in. internal hex wrench, remove work port
plugs (21, if equipped with axial ports). Discard o-rings.
5
3
7
13
2
6
9
11
1
4
8
10
12
1.
Plug
2.
Plug
3.
Plug
4.
O-ring
5.
O-ring
6.
O-ring
7.
Spring
8.
Spring
9.
Spring
10. Washer
11. Washer
12. Shift Spool
13. Orifice Poppet
Figure 3-17. Loop Flushing Spool
15
20
16
16
19
17
18
21
14
14. Lock Nut
15. O-ring Plug
16. Control Line Plug
17. Control Line Plug
18. Cavity Plug
19. Drain Plug
20. Drain Plug
21. Work Port Plug
Figure 3-18. Plugs, Fittings, and Speed Sensor
Summary of Contents for 740AJ
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Page 116: ...SECTION 3 CHASSIS TURNTABLE 3 64 3121160 Figure 3 44 Swing Hub Prior to SN 0300074383...
Page 203: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 151 Figure 3 77 EFI Component Location...
Page 206: ...SECTION 3 CHASSIS TURNTABLE 3 154 3121160 Figure 3 78 ECM EPM Identification ECM EPM...
Page 224: ...SECTION 3 CHASSIS TURNTABLE 3 172 3121160 Figure 3 83 Deutz EMR 2 Troubleshooting Flow Chart...
Page 228: ...SECTION 3 CHASSIS TURNTABLE 3 176 3121160 Figure 3 87 EMR 2 Engine Plug Pin Identification...
Page 229: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 177 Figure 3 88 EMR 2 Vehicle Plug Pin Identification...
Page 230: ...SECTION 3 CHASSIS TURNTABLE 3 178 3121160 Figure 3 89 EMR2 Fault Codes Sheet 1 of 5...
Page 231: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 179 Figure 3 90 EMR2 Fault Codes Sheet 2 of 5...
Page 232: ...SECTION 3 CHASSIS TURNTABLE 3 180 3121160 Figure 3 91 EMR2 Fault Codes Sheet 3 of 5...
Page 233: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 181 Figure 3 92 EMR2 Fault Codes Sheet 4 of 5...
Page 234: ...SECTION 3 CHASSIS TURNTABLE 3 182 3121160 Figure 3 93 EMR2 Fault Codes Sheet 5 of 5...
Page 303: ...SECTION 4 BOOM PLATFORM 3121160 4 31 Figure 4 20 Rotator Assembly HELAC...
Page 460: ...SECTION 5 BASIC HYDRAULIC INFORMATION AND SCHEMATICS 5 116 3121160 NOTES...
Page 467: ...SECTION 6 JLG CONTROL SYSTEM 3121160 6 7 Figure 6 2 ADE Block Diagram...
Page 534: ...SECTION 6 JLG CONTROL SYSTEM 6 74 3121160 NOTES...
Page 580: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 46 3121160 NOTES...
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