Hitachi LX300-7 Wheel Loader Technical+Operator’s+Operational Principle+Electrical & Hydraulic Circuit Manual – PDF Download

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Hitachi LX300-7 Wheel Loader Technical+Operator’s+Operational Principle+Electrical & Hydraulic Circuit Manual

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This Listing includes all of the manuals mentioned below:

1. Hitachi LX300-7 Operation Training Text Manual.pdf
2. Hitachi LX300-7 Operational Principle Training Text Manual.pdf
3. Hitachi LX300-7 Wheel Loader Operator’s Manual.pdf
4. Hitachi LX300-7 Wheel Loader Technical Manual.PDF
5. HYDRAULIC CIRCUIT DIAGRAM.pdf
6. PERFORMANCE CHECK.pdf
7. TRANSMISSION CONTROL DIAGRAM.pdf
8. TRANSMISSION CONTROL.pdf
9. ELECTRICAL CIRCUIT DIAGRAM.pdf
10. ELECTRICAL-HYDRAULIC CIRCUIT DIAGRAM.pdf
11. Hitachi LX300-7 Maintenance Training Text Manual.pdf

HITACHI LX300-7 WHEEL LOADER TECHNICAL+OPERATOR’S+OPERATIONAL PRINCIPLE+ELECTRICAL & HYDRAULIC CIRCUIT MANUAL – PDF DOWNLOAD:

SCREENSHOTS OF THE MANUAL:

DESCRIPTION:

Hitachi LX300-7 Wheel Loader Technical+Operator’s+Operational Principle+Electrical & Hydraulic Circuit Manual

• Our company offer a wide variety of wheel loaders which have been enthusiastically welcomed by users all over the world. The Model LX300-7 articulated type wheel loader is the latest product developed from years of research and experience.
• To get the most of the loader, it is required that you become familiar with its features, construction, operating and maintenance procedures. This Service Manual explains the structure of the above loaders for service personnel and shop workers.
• We hope it will be your reference guide during servicing jobs. The descriptions and specifications described in this manual are subject to change without notice.

TABLE OF CONTENTS:

Hitachi LX300-7 Wheel Loader Technical+Operator’s+Operational Principle+Electrical & Hydraulic Circuit Manual

TABLE OF CONTENTS –

• Hitachi LX300-7 Operational Principle Training Text Manual.pdf

0. SPECIFICATIONS …………………………………………………………………………………………………….. 1
0.1 OUTER VIEWS ……………………………………………………………………………………………………………. 1
0.2 SPECIFICATIONS………………………………………………………………………………………………………… 2
1. ENGINE AND RELATED COMPONENTS………………………………………………………….. 5
1.1 ENGINE ………………………………………………………………………………………………………………………. 5
1.2 COOLING SYSTEM …………………………………………………………………………………………………….. 10
1.3 FUEL SYSTEM ……………………………………………………………………………………………………………. 12
1.4 INTAKE AND EXHAUST SYSTEM ……………………………………………………………………………… 14
1.5 ELECTRICAL SYSTEM……………………………………………………………………………………………….. 18
1.6 ENGINE CONTROL UNIT ……………………………………………………………………………………………. 20
2. POWER TRAIN………………………………………………………………………………………………………….. 23
2.1 TORQUE CONVERTER & TRANSMISSION ………………………………………………………………… 24
2.1.1 TORQUE CONVERTER …………………………………………………………………………………………… 27
2.1.2 TRANSMISSION……………………………………………………………………………………………………… 29
2.1.3 TRANSMISSION VALVE …………………………………………………………………………………………. 34
2.1.4 TRANSFER……………………………………………………………………………………………………………… 54
2.1.5 TRANSMISSION CONTROL ……………………………………………………………………………………. 55
2.1.6 ATC (AUTOMATIC TRANSMISSION CONTROLLER) ……………………………………………… 60
2.2 TRANSMISSION OIL CIRCULATION ROUTE ……………………………………………………………… 63
2.3 PROPELLER SHAFTS………………………………………………………………………………………………….. 66
2.4 DAMPER …………………………………………………………………………………………………………………….. 67
2.5 DRIVE AXLES (FRONT AND REAR) …………………………………………………………………………… 69
2.5.1 DRIVE AXLE ………………………………………………………………………………………………………….. 69
2.5.2 DIFFERENTIAL ………………………………………………………………………………………………………. 74
2.5.3 FINAL REDUCTION GEAR AND BRAKE UNIT ………………………………………………………. 77
2.6 WHEEL ASSEMBLY (TIRE AND WHEEL) …………………………………………………………………… 78
2.6.1 TIRE ……………………………………………………………………………………………………………………….. 78
2.6.2 WHEEL …………………………………………………………………………………………………………………… 79
3. BRAKE SYSTEM………………………………………………………………………………………………………. 81
3.1 SERVICE BRAKE ………………………………………………………………………………………………………… 82
3.1.1 GENERAL DESCRIPTION (BRAKE LINE)……………………………………………………………….. 82
3.1.2 BRAKE VALVE ……………………………………………………………………………………………………….. 88
3.1.3 CHARGING VALVE ………………………………………………………………………………………………… 90
3.1.4 SLACK ADJUSTER …………………………………………………………………………………………………. 92
3.1.5 DISK BRAKE ………………………………………………………………………………………………………….. 93
3.1.6 OTHER COMPONENTS…………………………………………………………………………………………… 94
3.2 PARKING BRAKE ……………………………………………………………………………………………………….. 95
3.2.1 GENERAL DESCRIPTION (BRAKE LINE)……………………………………………………………….. 95
3.2.2 PARKING BRAKE VALVE……………………………………………………………………………………….. 97
3.2.3 SPRING BRAKE ……………………………………………………………………………………………………… 98
3.2.4 PARKING BRAKE …………………………………………………………………………………………………… 99
4. STEERING SYSTEM ……………………………………………………………………………………………….. 103
4.1 GENERAL DESCRIPTION …………………………………………………………………………………………… 103
4.2 OIL CIRCULATION ROUTES ………………………………………………………………………………………. 105
4.3 STEERING WHEEL UNIT ……………………………………………………………………………………………. 106
4.4 STEERING VALVE ………………………………………………………………………………………………………. 109
4.5 CONTROL LINKAGE ………………………………………………………………………………………………….. 112
4.6 STEERING CYLINDER ……………………………………………………………………………………………….. 113
5. FRAME AND COCKPIT ………………………………………………………………………………………….. 115
5.1 FRAME ……………………………………………………………………………………………………………………….. 115
5.2 CENTER HINGE PIN……………………………………………………………………………………………………. 117
6. HYDRAULIC SYSTEM…………………………………………………………………………………………….. 119
6.1 OIL CIRCULATION ROUTES (HYDRAULIC CIRCUIT DIAGRAM) ……………………………… 119
6.2 PUMP………………………………………………………………………………………………………………………….. 122
6.2.1 MAIN PUMP……………………………………………………………………………………………………………. 123
6.2.2 STEERING PUMP ……………………………………………………………………………………………………. 126
6.2.3 POC & BRAKE PUMP……………………………………………………………………………………………… 128
6.3 VALVE ………………………………………………………………………………………………………………………… 129
6.3.1 MAIN VALVE ………………………………………………………………………………………………………….. 129
6.3.2 PILOT VALVE …………………………………………………………………………………………………………. 132
6.4 VALVE CONTROLS …………………………………………………………………………………………………….. 133
6.4.1 SYSTEM IN OPERATION ………………………………………………………………………………………… 133
6.4.2 STOP VALVE…………………………………………………………………………………………………………… 135
6.5 OIL TANK……………………………………………………………………………………………………………………. 136
7. LOAD HANDLING SYSTEM ………………………………………………………………………………….. 138
7.1 BOOM, BELLCRANK AND BUCKET ………………………………………………………………………….. 139
7.1.1 GENERAL DESCRIPTION……………………………………………………………………………………….. 139
7.1.2 BUCKET …………………………………………………………………………………………………………………. 141
7.1.3 BUCKET LEVELER, BOOM KICKOUT AND GSS……………………………………………………. 142
7.2 CYLINDER………………………………………………………………………………………………………………….. 146
7.2.1 BOOM CYLINDER ………………………………………………………………………………………………….. 146
7.2.2 BUCKET CYLINDER ………………………………………………………………………………………………. 146
8. ELECTRIC SYSTEM………………………………………………………………………………………………… 150
8.1 LIGHTING EQUIPMENT …………………………………………………………………………………………….. 150
8.2 METERS AND SWITCHES ………………………………………………………………………………………….. 151
8.2.1 MONITOR LAMPS (CLUSTER GAUGE UNIT)…………………………………………………………. 151
8.2.2 LIGHTING SWITCH ………………………………………………………………………………………………… 155
8.2.3 TURN SIGNAL SWITCH …………………………………………………………………………………………. 155
8.3 ELECTRIC CIRCUIT DIAGRAM ………………………………………………………………………………….. 156

• Hitachi LX300-7 Wheel Loader Technical Manual.PDF

0. SPECIFICATIONS …………………………………………………………………………………………………….. 1
0.1 OUTER VIEWS ……………………………………………………………………………………………………………. 1
0.2 SPECIFICATIONS………………………………………………………………………………………………………… 2
1. ENGINE AND RELATED COMPONENTS………………………………………………………….. 5
1.1 ENGINE ………………………………………………………………………………………………………………………. 5
1.2 COOLING SYSTEM …………………………………………………………………………………………………….. 10
1.3 FUEL SYSTEM ……………………………………………………………………………………………………………. 12
1.4 INTAKE AND EXHAUST SYSTEM ……………………………………………………………………………… 14
1.5 ELECTRICAL SYSTEM……………………………………………………………………………………………….. 18
1.6 ENGINE CONTROL UNIT ……………………………………………………………………………………………. 20
2. POWER TRAIN………………………………………………………………………………………………………….. 23
2.1 TORQUE CONVERTER & TRANSMISSION ………………………………………………………………… 24
2.1.1 TORQUE CONVERTER …………………………………………………………………………………………… 27
2.1.2 TRANSMISSION……………………………………………………………………………………………………… 29
2.1.3 TRANSMISSION VALVE …………………………………………………………………………………………. 34
2.1.4 TRANSFER……………………………………………………………………………………………………………… 54
2.1.5 TRANSMISSION CONTROL ……………………………………………………………………………………. 55
2.1.6 ATC (AUTOMATIC TRANSMISSION CONTROLLER) ……………………………………………… 60
2.2 TRANSMISSION OIL CIRCULATION ROUTE ……………………………………………………………… 63
2.3 PROPELLER SHAFTS………………………………………………………………………………………………….. 66
2.4 DAMPER …………………………………………………………………………………………………………………….. 67
2.5 DRIVE AXLES (FRONT AND REAR) …………………………………………………………………………… 69
2.5.1 DRIVE AXLE ………………………………………………………………………………………………………….. 69
2.5.2 DIFFERENTIAL ………………………………………………………………………………………………………. 74
2.5.3 FINAL REDUCTION GEAR AND BRAKE UNIT ………………………………………………………. 77
2.6 WHEEL ASSEMBLY (TIRE AND WHEEL) …………………………………………………………………… 78
2.6.1 TIRE ……………………………………………………………………………………………………………………….. 78
2.6.2 WHEEL …………………………………………………………………………………………………………………… 79
3. BRAKE SYSTEM………………………………………………………………………………………………………. 81
3.1 SERVICE BRAKE ………………………………………………………………………………………………………… 82
3.1.1 GENERAL DESCRIPTION (BRAKE LINE)……………………………………………………………….. 82
3.1.2 BRAKE VALVE ……………………………………………………………………………………………………….. 88
3.1.3 CHARGING VALVE ………………………………………………………………………………………………… 90
3.1.4 SLACK ADJUSTER …………………………………………………………………………………………………. 92
3.1.5 DISK BRAKE ………………………………………………………………………………………………………….. 93
3.1.6 OTHER COMPONENTS…………………………………………………………………………………………… 94
3.2 PARKING BRAKE ……………………………………………………………………………………………………….. 95
3.2.1 GENERAL DESCRIPTION (BRAKE LINE)……………………………………………………………….. 95
3.2.2 PARKING BRAKE VALVE……………………………………………………………………………………….. 97
3.2.3 SPRING BRAKE ……………………………………………………………………………………………………… 98
3.2.4 PARKING BRAKE …………………………………………………………………………………………………… 99
4. STEERING SYSTEM ……………………………………………………………………………………………….. 103
4.1 GENERAL DESCRIPTION …………………………………………………………………………………………… 103
4.2 OIL CIRCULATION ROUTES ………………………………………………………………………………………. 105
4.3 STEERING WHEEL UNIT ……………………………………………………………………………………………. 106
4.4 STEERING VALVE ………………………………………………………………………………………………………. 109
4.5 CONTROL LINKAGE ………………………………………………………………………………………………….. 112
4.6 STEERING CYLINDER ……………………………………………………………………………………………….. 113
5. FRAME AND COCKPIT ………………………………………………………………………………………….. 115
5.1 FRAME ……………………………………………………………………………………………………………………….. 115
5.2 CENTER HINGE PIN……………………………………………………………………………………………………. 117
6. HYDRAULIC SYSTEM…………………………………………………………………………………………….. 119
6.1 OIL CIRCULATION ROUTES (HYDRAULIC CIRCUIT DIAGRAM) ……………………………… 119
6.2 PUMP………………………………………………………………………………………………………………………….. 122
6.2.1 MAIN PUMP……………………………………………………………………………………………………………. 123
6.2.2 STEERING PUMP ……………………………………………………………………………………………………. 126
6.2.3 POC & BRAKE PUMP……………………………………………………………………………………………… 128
6.3 VALVE ………………………………………………………………………………………………………………………… 129
6.3.1 MAIN VALVE ………………………………………………………………………………………………………….. 129
6.3.2 PILOT VALVE …………………………………………………………………………………………………………. 132
6.4 VALVE CONTROLS …………………………………………………………………………………………………….. 133
6.4.1 SYSTEM IN OPERATION ………………………………………………………………………………………… 133
6.4.2 STOP VALVE…………………………………………………………………………………………………………… 135
6.5 OIL TANK……………………………………………………………………………………………………………………. 136
7. LOAD HANDLING SYSTEM ………………………………………………………………………………….. 138
7.1 BOOM, BELLCRANK AND BUCKET ………………………………………………………………………….. 139
7.1.1 GENERAL DESCRIPTION……………………………………………………………………………………….. 139
7.1.2 BUCKET …………………………………………………………………………………………………………………. 141
7.1.3 BUCKET LEVELER, BOOM KICKOUT AND GSS……………………………………………………. 142
7.2 CYLINDER………………………………………………………………………………………………………………….. 146
7.2.1 BOOM CYLINDER ………………………………………………………………………………………………….. 146
7.2.2 BUCKET CYLINDER ………………………………………………………………………………………………. 146
8. ELECTRIC SYSTEM………………………………………………………………………………………………… 150
8.1 LIGHTING EQUIPMENT …………………………………………………………………………………………….. 150
8.2 METERS AND SWITCHES ………………………………………………………………………………………….. 151
8.2.1 MONITOR LAMPS (CLUSTER GAUGE UNIT)…………………………………………………………. 151
8.2.2 LIGHTING SWITCH ………………………………………………………………………………………………… 155
8.2.3 TURN SIGNAL SWITCH …………………………………………………………………………………………. 155
8.3 ELECTRIC CIRCUIT DIAGRAM ………………………………………………………………………………….. 156

PLEASE NOTE:

• This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
• You will be directed to the download page as soon as the purchase is completed. The whole payment and downloading process will take anywhere between 2-5 minutes
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