Fiat Hitachi Excavator EX285 Operational Principle Technical Manual – PDF DOWNLOAD

Description

Fiat Hitachi Excavator EX285 Operational Principle Technical Manual – PDF DOWNLOAD

FILE DETAILS:

Fiat Hitachi Excavator EX285 Operational Principle Technical Manual – PDF DOWNLOAD

Language : English
Pages : 126
Downloadable : Yes
File Type : PDF

DESCRIPTION:

Fiat Hitachi Excavator EX285 Operational Principle Technical Manual – PDF DOWNLOAD

• • This manual is written for an experienced technician to provide technical information needed to maintain and repair this machine
• Be sure to thoroughly read this manual for correct information concerning the service procedures.
• – If you have any questions or comments, or if you found any errors regarding the contents of this manual, please contact:

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

Fiat Hitachi Excavator EX285 Operational Principle Technical Manual – PDF DOWNLOAD

EX285 EXCAVATOR............................................  1
INTRODUCTION...............................................  2
OPERATIONAL PRINCIPLE......................................  4
	GENERAL................................................  5
		Group 1 - Specification............................  6
			EXCAVATOR DIMENSIONS...........................  6
			EXCAVATOR PERFORMANCE..........................  8
			ENGINE.........................................  8
			ENGINE ACCESSORY...............................  8
			HYDRAULIC DEVICES..............................  9
			ELECTRICAL EQUIPMENT........................... 10
		Group 2 - Component layout......................... 12
			MAIN COMPONENTS................................ 12
			ELECTRICAL SYSTEM.............................. 13
			ELECTRICAL SYSTEM.............................. 14
			ELECTRICAL SYSTEM.............................. 15
			ELECTRICAL SYSTEM.............................. 16
			PUMP AND RELATED PARTS......................... 17
			OTHER COMPONENTS............................... 18
	SYSTEM................................................. 20
		Group 1 - Control system........................... 21
			OUTLINE........................................ 21
			ENGINE CONTROL................................. 22
			PUMP CONTROL................................... 28
			VALVE CONTROL.................................. 30
			OTHER CONTROL FUNCTION......................... 34
		Group 2 - Hydraulic system......................... 35
			MAIN CIRCUIT................................... 35
			PILOT CIRCUIT.................................. 36
			NEUTRAL CIRCUIT................................ 37
			SINGLE ACTUATOR OPERATION...................... 37
			COMBINED OPERATION............................. 38
		Group 3 - Electrical system........................ 41
			OUTLINE........................................ 41
			ELECTRIC POWER CIRCUIT......................... 42
			BULB CHECK CIRCUIT............................. 43
			PREHEAT CIRCUIT................................ 44
			STARTING CIRCUIT............................... 46
			CHARGING CIRCUIT............................... 48
			SURGE VOLTAGE PREVENTION CIRCUIT............... 49
			ACCESSORY CIRCUIT.............................. 50
			ENGINE STOP CIRCUIT............................ 51
			ENGINE EMERGENCY STOP.......................... 52
	COMPONENT OPERATION.................................... 54
		Group 1 - Pump device.............................. 55
			OUTLINE........................................ 55
			MAIN PUMP...................................... 56
			REGULATOR...................................... 59
			PILOT PUMP..................................... 67
			N SENSOR....................................... 67
			PUMP PRESSURE SENSOR........................... 67
		Group 2 - Swing device............................. 69
			OUTLINE........................................ 69
			SWING MOTOR.................................... 70
			SWING PARKING BRAKE............................ 72
			VALVE UNIT..................................... 73
			SWING REDUCTION GEAR........................... 75
		Group 3 - Control valve............................ 77
			OUTLINE........................................ 77
			HYDRAULIC CIRCUIT.............................. 82
			FLOW COMBINER VALVE............................ 84
			PUMP CONTROL VALVE............................. 86
			MAIN RELIEF VALVE.............................. 88
			OVERLOAD RELIEF VALVE.......................... 89
			ARM REGENERATIVE VALVE......................... 90
			BOOM ANTI-DRIFT VALVE, ARM ANTI-DRIFT VALVE.... 92
			BUCKET FLOW CONTROL VALVE...................... 92
			TRAVEL FLOW CONTROL VALVE...................... 94
			TRAVEL/BOOM LOWER SELECTOR VALVE............... 94
			BOOM REGENERATIVE VALVE........................ 96
		Group 4 - Pilot valve.............................. 97
			OUTLINE........................................ 97
			OPERATION...................................... 99
		Group 5 - Travel device............................107
			OUTLINE........................................107
			TRAVEL REDUCTION GEAR..........................108
			TRAVEL MOTOR...................................109
			TRAVEL BRAKE VALVE.............................113
			PARKING BRAKE..................................115
		Group 6 - Other components (Upperstructure)........117
			PILOT SHUT-OFF VALVE...........................117
			SHOCKLESS VALVE................................118
			SOLENOID VALVE UNIT............................120
			PILOT RELIEF VALVE.............................122
			EC MOTOR.......................................122
		Group 7 - Other components (Undercarriage).........123
			SWING BEARING..................................123
			CENTER JOINT...................................124
			TRACK ADJUSTER.................................125

Questions? Email us: [email protected]

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
• Need any other service / repair / parts manual, please feel free to contact [email protected] . We still have 50,000 manuals unlisted

S.M