SECTION 4 - BOOM & PLATFORM
3121234
4-67
Troubleshooting
Table 4-1. Troubleshooting
Problem
Cause
Solution
1.
Shaft rotates slowly or not at all
a. Insufficient torque output
b. Low rate of fluid flow
c. Control or counterbalance valve has internal leak
d. Piston and/or shaft seal leak
e. Corrosion build-up on the thrust surfaces
f. Swollen seals and composite bearings caused by incom-
patible hydraulic fluid
a. Verify correct operating pressure. Do not exceed OEM’s
pressure specifications. Load may be above maximum
capacity of the actuator.
b. Inspect ports for obstructions and hydraulic lines for
restrictions and leaks.
c. Disconnect hydraulic lines and bypass valve. Leave valve
ports open and operate the actuator through housing ports
(do not exceed OEM’s operating pressure). The valve must
be replaced if a steady flow of fluid is seen coming from the
valve ports.
d. Remove the plug and the housing’s valve ports. Operate
the actuator through the housing ports. Conduct the inter-
nal leakage test as described in the Section , Testing the
Actuator for Internal Leakage.
e. Re-build the actuator. Remove all rust then polish.
Replacement parts may be needed.
f. Re-build the actuator. Use fluid that is compatible with
seals and bearings.
2.
Operation is erratic or not responsive
a. Air in actuator
a. Purge air from actuator. See bleeding procedures.
3.
Shaft will not fully rotate
a. Twisted or chipped gear teeth overload conditions
b. Port fittings are obstructing the piston during stroke
a. Check for gear binding. Actuator may or may not be able
to be re-built and may need to be replaced.
b. Check thread length of port fittings. Fittings should not
reach inside the housing bore.
4.
Selected position cannot be maintained
a. Control or counterbalance valve has internal leak
b. Piston and/or shaft seal leak
c. Air in actuator
a. Disconnect hydraulic lines and bypass valve. Leave valve
ports open and operate the actuator through housing ports
(do not exceed OEM’s operating pressure). The valve must
be replaced if a steady flow of fluid is seen coming from the
valve ports.
b. Remove the plug and the housing’s valve ports. Operate
the actuator through the housing ports. Conduct the inter-
nal leakage test as described in the Testing section of this
manual.
c. Purge air from actuator. See bleeding procedures
Содержание 680S
Страница 1: ...Service and Maintenance Manual Model 680S Prior to SN 0300189341 P N 3121234 December 05 2017 AS NZS...
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Страница 48: ...SECTION 2 GENERAL 2 10 3121234 Figure 2 1 Engine Operating Temperature Specifications Deutz 4150548 E...
Страница 49: ...SECTION 2 GENERAL 3121234 2 11 Figure 2 2 Engine Operating Temperature Specifications Ford 4150548 E...
Страница 50: ...SECTION 2 GENERAL 2 12 3121234 Figure 2 3 Engine Operating Temperature Specifications Caterpillar 4150548 E...
Страница 51: ...SECTION 2 GENERAL 3121234 2 13 Figure 2 4 Engine Operating Temperature Specifications GM 4150548 E...
Страница 52: ...SECTION 2 GENERAL 2 14 3121234 NOTES...
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Страница 86: ...SECTION 3 CHASSIS TURNTABLE 3 34 3121234 Figure 3 25 Assembly Tools Bearing Cone Pressing B Bearing...
Страница 87: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 35 Figure 3 26 Assembly Tools Bearing Cone Pressing A Bearing...
Страница 88: ...SECTION 3 CHASSIS TURNTABLE 3 36 3121234 Figure 3 27 Assembly Tools Bearing Cup Pressing A B Bearings...
Страница 89: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 37 Figure 3 28 Assembly Tools Seal Pressing...
Страница 90: ...SECTION 3 CHASSIS TURNTABLE 3 38 3121234 Figure 3 29 Assembly Tools Spacer Brake Disc Installation...
Страница 91: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 39 Figure 3 30 Assembly Tools Brake Retaining Ring Installation...
Страница 139: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 87 Figure 3 62 Swing Hub Prior to SN 0300134352...
Страница 143: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 91 Figure 3 64 Swing Brake...
Страница 196: ...SECTION 3 CHASSIS TURNTABLE 3 144 3121234 Figure 3 82 Rotary Coupling Port Location Prior to SN 0300137913 5 1660303 B...
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Страница 206: ...SECTION 3 CHASSIS TURNTABLE 3 154 3121234 Figure 3 89 Generator Troubleshooting Circuit Diagram Sheet 1 of 2...
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Страница 208: ...SECTION 3 CHASSIS TURNTABLE 3 156 3121234 Figure 3 91 Generator Electrical Circuit Diagram...
Страница 209: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 157 Figure 3 92 Power Board PC1 Electrical Circuit Diagram...
Страница 210: ...SECTION 3 CHASSIS TURNTABLE 3 158 3121234 Figure 3 93 Power Board PC2 Electrical Circuit Diagram Sheet 1 of 2...
Страница 211: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 159 Figure 3 94 Power Board PC2 Electrical Circuit Diagram Sheet 2 of 2...
Страница 224: ...SECTION 3 CHASSIS TURNTABLE 3 172 3121234 Figure 3 103 EMR 2 Engine Side Equipment...
Страница 225: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 173 Figure 3 104 Deutz EMR 2 Troubleshooting Flow Chart...
Страница 226: ...SECTION 3 CHASSIS TURNTABLE 3 174 3121234 Figure 3 105 Deutz EMR 2 Vehicle Side Connection Diagram...
Страница 227: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 175 Figure 3 106 Deutz EMR 2 Engine Side Connection Diagram Sheet 1 of 2...
Страница 228: ...SECTION 3 CHASSIS TURNTABLE 3 176 3121234 Figure 3 107 Deutz EMR 2 Engine Side Connection Diagram Sheet 2 of 2...
Страница 229: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 177 Figure 3 108 EMR 2 Engine Plug Pin Identification...
Страница 230: ...SECTION 3 CHASSIS TURNTABLE 3 178 3121234 Figure 3 109 EMR 2 Vehicle Plug Pin Identification...
Страница 231: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 179 Figure 3 110 EMR2 Fault Codes Sheet 1 of 5...
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Страница 233: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 181 Figure 3 112 EMR2 Fault Codes Sheet 3 of 5...
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Страница 235: ...SECTION 3 CHASSIS TURNTABLE 3121234 3 183 Figure 3 114 EMR2 Fault Codes Sheet 5 of 5...
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Страница 286: ...SECTION 4 BOOM PLATFORM 4 22 3121234 Figure 4 7 Boom Assembly Cutaway Sheet 1 of 2 10 15 12 6 9...
Страница 333: ...SECTION 4 BOOM PLATFORM 3121234 4 69 Figure 4 25 Load Sensing Device...
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Страница 402: ...SECTION 5 BASIC HYDRAULICS INFORMATION SCHEMATICS 5 66 3121234 Figure 5 100 Fault logic Troubleshooting...
Страница 403: ...SECTION 5 BASIC HYDRAULICS INFORMATION SCHEMATICS 3121234 5 67 Figure 5 101 Fault logic Troubleshooting...
Страница 404: ...SECTION 5 BASIC HYDRAULICS INFORMATION SCHEMATICS 5 68 3121234 Figure 5 102 Fault logic Troubleshooting...
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Страница 414: ...SECTION 5 BASIC HYDRAULICS INFORMATION SCHEMATICS 5 78 3121234 Figure 5 109 Hydraulic Schematic Sheet 7 of 8 SHEET 4...
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Страница 423: ...SECTION 6 JLG CONTROL SYSTEM 3121234 6 7 Figure 6 2 ADE Block Diagram...
Страница 445: ...SECTION 6 JLG CONTROL SYSTEM 3121234 6 29 Figure 6 6 Analyzer Flow Chart Prior to Version 5 X Software Sheet 4 of 4...
Страница 447: ...SECTION 6 JLG CONTROL SYSTEM 3121234 6 31 Figure 6 8 Analyzer Flow Chart Version 5 X Software Sheet 2 of 4...
Страница 461: ...SECTION 6 JLG CONTROL SYSTEM 3121234 6 45 1 1001103667 Y Figure 6 22 Ground Control Module Sheet 1 of 3...
Страница 462: ...SECTION 6 JLG CONTROL SYSTEM 6 46 3121234 1 1001103667 Y Figure 6 23 Ground Control Module Sheet 2 of 3...
Страница 463: ...SECTION 6 JLG CONTROL SYSTEM 3121234 6 47 1 1001103667 Y Figure 6 24 Ground Control Module Sheet 3 of 3...
Страница 464: ...SECTION 6 JLG CONTROL SYSTEM 6 48 3121234 CONNECTOR 1001141138 D Figure 6 25 Platform Control Module Sheet 1 of 2...
Страница 465: ...SECTION 6 JLG CONTROL SYSTEM 3121234 6 49 CONNECTOR 1001141138 D Figure 6 26 Platform Control Module Sheet 2 of 2...
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Страница 491: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 3121234 7 11 Figure 7 15 Connector Installation...
Страница 526: ...SECTION 7 BASIC ELECTRICAL INFORMATION SCHEMATICS 7 46 3121234 Figure 7 54 Electrical Schematic GM Sheet 1 of 2 SHEET 1...
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