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Solar 420LC-V
Daewoo Solar 420LC-V Manuals
Manuals and User Guides for Daewoo Solar 420LC-V. We have
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Daewoo Solar 420LC-V manual available for free PDF download: Manual
Daewoo Solar 420LC-V Manual (151 pages)
Brand:
Daewoo
| Category:
Excavators
| Size: 6.87 MB
Table of Contents
Section 1
3
Table of Contents
3
Hydraulic System - General Notes
5
Hydraulic Schematic
6
General Notes
6
Operation of Working Components
7
Boom Operating Circuit
7
Boom up Circuit
7
Boom down Circuit
7
Arm Operating Circuit
8
Arm Crowd Circuit
8
Arm Dump Circuit
8
Swing Operating Circuit
9
Bucket Operating Circuit
9
Bucket Dump Circuit
9
Bucket Crowd Circuit
9
Right Swing Operating Circuit
10
Left Swing Operating Circuit
10
Swing Relief Valve and Make-Up Valve
10
Travel Operating Circuit
10
Forward Travel Circuit
11
Reverse Travel Circuit
11
Initial Checks and Tests to Establish Operating Condition of the Excavator
12
Procedural Troubleshooting Baseline Recommendations
12
Pilot Pressure
13
Adjustment and Testing
13
Power Mode Valve
14
Current Signal and Hydraulic Pressure Adjustments
14
Boom/Front Priority Valve
15
Control Valve Pressure and Current Adjustments
15
Pressure up Valve
16
Checks and Adjustments
16
Pump Input Power Control
18
Pump Regulator Adjustment
18
Flow Meter and Flow Meter Kit Installation and Testing
21
Swing System Troubleshooting
23
Precautions/Initial Checks
23
Swing Relief Valve Checking and Adjustment
23
Troubleshooting - Swing Gearbox
25
Troubleshooting - Hydraulic Problems
26
Troubleshooting - Control Valve
28
Troubleshooting - Travel Control Valve
29
Troubleshooting - Joystick Control Valve
30
Section 2
37
General Description
38
Parts List
39
Inspection
40
Testing
40
Troubleshooting, Testing and Adjustment
40
Disassembly
41
Reassembly
41
Section 3
45
General Description
46
Theory of Operation
46
Parts List
47
Piston Nut
49
Special Tools and Materials
49
Piston Jig
51
Disassembly
53
Reassembly
59
Section 4
65
General Description
66
Theory of Operation
66
Swing Motor Anti-Cavitation Make-Up Valve
67
Relief Valve
68
Swing Brake Operation
68
Parts List
71
Specifications
73
Special Tools
74
Disassembly
75
Cleaning and Inspection (Wear Limits and Tolerances)
82
Reassembly
84
Section 5
93
General Description
94
Theory of Operation
94
Reduction Gearbox Operation
102
Parts List
103
Specifications
111
Tightening Torques
112
Sectional View
114
Travel Motor Disassembly
114
Seal Kits and Component Groups
115
Sealing Drive Shaft
118
Sealing Control Parts
119
Sealing Relief Valve
119
Disassembly Port Plate
120
Exchanging Rotary Group
125
Travel Motor Speed Reduction Gearbox Disassembly
128
Cleaning and Inspection (Wear Limits and Tolerances)
137
Travel Motor Speed Reduction Gearbox Reassembly
138
Rotary Group Assembly
148
Travel Motor Reassembly
148
Rotary Group Adjustment (See Serve Information)
149
Assembly of Port Plate
151
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