SECTION 5 - BASIC HYDRAULIC INFOR
M
ATION AND SCHE
M
ATICS
5-62
3121160
6.
Remove the lifting device from the main telescope cylin-
der and retract the main telescope cylinder.
7.
Extend the main lift cylinder using the auxiliary control
from the ground controls to align with rod end hole in
main base boom.
8.
Carefully insert the main lift cylinder rod end pin thro-
ugh the base boom and install the mounting hardware.
9.
Using all applicable safety precautions, operate the
boom functions. Check for proper operation and
hydraulic leaks. Secure as necessary.
10.
Check fluid level of hydraulic tank and adjust as neces-
sary.
Main Lift Cylinder Removal
NOTE:
The Main Boom weighs approximately 2226 lbs. (1010 kg).
1.
Place the machine on a flat and level surface. Attach a
suitable lifting device and sling, sufficient to lift the main
boom assembly, to the approximate center of the main
boom assembly.
2.
Place blocking under the cylinder to prevent it from fall-
ing when the attaching hardware is removed.
3.
Remove the hardware securing the main lift cylinder rod
attach pin to the boom. Using a suitable brass drift, drive
out the cylinder rod attach pin.
4.
Using auxiliary power from ground controls, retract the
lift cylinder rod completely.
5.
Disconnect, cap, and tag the main boom lift cylinder
hydraulic lines and ports.
6.
Attach a suitable lifting device and sling to the main lift
cylinder.
NOTE:
The Main Lift Cylinder weighs approximately 445 lbs. (202
kg).
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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