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Linkbelt Sumitomo 490X4 A3 Assembly Diagrams SERVICE MANUAL – PDF DOWNLOAD
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Linkbelt Sumitomo 490X4 A3 Assembly Diagrams SERVICE MANUAL – PDF DOWNLOAD
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Description
Linkbelt Sumitomo 490X4 A3 Assembly Diagrams SERVICE MANUAL – PDF DOWNLOAD
FILE DETAILS:
Linkbelt Sumitomo 490X4 A3 Assembly Diagrams SERVICE MANUAL – PDF DOWNLOAD
Language : English
Pages :158
Downloadable : Yes
File Type : PDF
IMAGES PREVIEW OF THE MANUAL:
TABLE OF CONTENTS:
Linkbelt Sumitomo 490X4 A3 Assembly Diagrams SERVICE MANUAL – PDF DOWNLOAD
A3 Assembly Diagrams 1
J 3
Explanation of Hydraulic Circuit and Operations (standard model) 5
Travel Circuit 6
Travel Low-speed Circuit 6
Travel High-speed Circuit 8
Straight Travel Circuit (with HBCV) 10
Swing Circuit 12
Swing Relief Cut Control Circuit 12
Swing Brake Circuit 14
Swing Parking Circuit (lever in neutral) 16
Swing Parking Circuit (brake release) 18
Swing Parking Circuit (machine stop) 20
Boom Circuit 22
Boom-up Circuit (independent operation) (with HBCV) 22
Boom-up Spool Stroke Control Circuit (compound boom-up + arm-in) (with HBCV) 24
Boom-down Regenerative Circuit (with HBCV) 26
Boom-down Tilting Prevention Circuit (with HBCV) 28
Boom-down Load Holding Valve Circuit (with HBCV) 30
Arm Circuit 32
Arm-out Circuit (with HBCV) 32
Arm Semi-parallel 1 Circuit (for independent operation) (with HBCV) 34
Arm Semi-parallel 1 Circuit (for compound operation) (ex arm-out + right swing operations) (with HBCV) 36
Arm Semi-parallel 1 Circuit (for compound operation) (ex arm-in + boom-up operations) (with HBCV) 38
Arm-in Regenerative Circuit (with HBCV) 40
Arm-in Load Holding Valve Circuit (with HBCV) 42
Arm-in Spool Stroke Control (with HBCV) 44
Bucket Circuit 46
Bucket-open Circuit 46
Bucket-close Circuit 48
Bucket-close Spool Stroke Control Circuit 50
Negative Control Circuit 52
Negative Control Circuit 52
Other Circuits 54
Cushion Circuit (arm-out operation) 55
Cushion Circuit (when arm-out operation stopped) 58
Cushion Circuit (arm-out → arm-in operation) 60
Heat Circuit (lever in neutral) 62
Auto Pressure Boost Circuit (arm in) 64
J 67
Explanation of Hydraulic Circuit and Operations (option) 69
Option Circuits 70
Single Breaker Circuit (pedal type) 70
Single Breaker Circuit (switch type) 72
Single Breaker Circuit (proportional control type) 74
Multi-purpose Circuit (proportional control type) (breaker) 76
Multi-purpose Circuit (proportional control type) (2 pumps flow crusher) 78
Multi-purpose Circuit (proportional control type) (electromagnetic relief) (breaker) 80
Multi-purpose Circuit (proportional control type) (electromagnetic relief) (crusher) 82
2nd Option Circuit (proportional control type) (hydraulic rotation fork) 84
R 87
Electrical Connector Wiring Diagram 89
Frame Main Harness 90
Control Valve Harness 92
SCR Harness 94
ATT Harness 96
Travel Harness 98
Cab Main Harness100
Indicator Harness102
Indicator Jumper104
Console Harness106
GPS Computer Harness108
GPS Computer Intermediate Harness110
Fan Motor Harness112
Free Swing Harness114
Relief Valve Harness116
Camera Harness [600 mm (23622 in)]118
Camera Harness [1900 mm (74803 in)]120
Camera Harness [2750 mm (108268 in)]122
Camera Intermediate Harness [9400 mm (370079 in)]124
Camera Intermediate Harness [9400 mm (370079 in)]126
Camera Harness (WAVES)128
Option Harness (pedal)130
Option Harness (proportional control)132
Option Harness (SV)134
Option + 2nd Option Harness (SV)136
2nd Option Harness (proportional control)138
2nd Option Harness (SV)140
R143
Electrical Parts and Wiring Assembly Diagram145
Frame146
Engine and Pump150
Attachments152
Battery154
Cab156
S.M 2/1/25
