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SECTION 5 - BASIC HYDRAULIC INFOR
M
ATION AND SCHE
M
ATICS
3121160
5-67
Tower Boom Lift Cylinder Removal
1.
Place machine on a flat and level surface. Place the main
boom in a horizontal position with the telescope cylin-
der fully retracted. Place the tower boom in a fully ele-
vated and fully retracted position.
NOTE:
The Main Boom weighs approximately 2226 lbs. (1010 kg),
Upright weighs approximately 1175 lbs. (535 kg) & Tower
Boom weighs approximately 3450 lbs. (1565 kg).
2.
Support the main boom, upright and tower boom with
adequate overhead crane.
NOTE:
The Tower lift cylinder weighs approximately 544 lbs. (247
kg).
3.
Adequately support the tower lift cylinder.
4.
Remove mounting hardware securing the lift cylinder
rod pin to the tower boom. Using a suitable brass drift,
drive out the tower lift cylinder rod attach pin.
5.
Using all applicable safety precautions, operate auxiliary
power, activate tower lift down and fully retract lift cylin-
der.
6.
Tag, disconnect, and cap the tower lift cylinder hydraulic
lines and ports.
7.
Remove mounting hardware securing the tower lift cyl-
inder barrel pin to the turntable. Using a suitable brass
drift, drive out the tower lift cylinder barrel pin.
8.
Carefully remove the tower lift cylinder from turntable.
Place in a suitable work area.
Summary of Contents for 740AJ
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Page 55: ...SECTION 3 CHASSIS TURNTABLE 3121160 3 3 This page left blank intentionally...
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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