Komatsu Pc290Lc-6K, Pc290Nlc-6K Hydraulic Excavator Service Manual SN K30001 K34001 and Up – PDF DOWNLOAD

Description

Komatsu Pc290Lc-6K, Pc290Nlc-6K Hydraulic Excavator Service Manual

FILE DETAILS:

Komatsu Pc290Lc-6K, Pc290Nlc-6K Hydraulic Excavator Service Manual

Brands: Komatsu
Equipment Type: Hydraulic Excavator
Manuals Type: Shop Manual
Machine Model: PC290LC-6K, PC290NLC-6K
Serial Number: K30001 and up, K34001 and up
Book Code: EEBM001902
Language: English
Pages: 673
File Format: Portable Document Format (PDF)

KOMATSU PC290LC-6K, PC290NLC-6K HYDRAULIC EXCAVATOR SERVICE MANUAL SN K30001 K34001 AND UP – PDF DOWNLOAD:

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION:

Komatsu Pc290Lc-6K, Pc290Nlc-6K Hydraulic Excavator Service Manual 

FOREWORD:

GENERAL:

• This shop manual has been prepared as an aid to improve the quality of repairs by giving the servicemen an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
• This shop manual mainly contains the necessary technical information for operations performed in a service workshop. For ease of understanding, the manual is divided into the following chapters; these chapters are further divided into the each main group of components.

STRUCTURE AND FUNCTION:
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting.
TESTING AND ADJUSTING:
This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. Troubleshooting charts correlating “Problems” to “Causes” are also included in thissection.
DISASSEMBLY AND ASSEMBLY:
This section explains the order to be followed when removing, installing, disassembling or assembling each component, as well as precautions to be taken for these operations.
MAINTENANCE STANDARD :
This section gives the judgement standards when inspecting disassembled parts.

TABLE OF CONTENTS:

Komatsu Pc290Lc-6K, Pc290Nlc-6K Hydraulic Excavator Service Manual 

COVER........................................................................  1
01 GENERAL...................................................................  2
	CONTENTS.................................................................  2
		SAFETY...............................................................  6
		FORWORD..............................................................  9
			GENERAL..........................................................  9
			HOW TO READ THE SHOP MANUAL...................................... 10
			HOISTING INSTRUCTIONS............................................ 11
			COATING MATERIALS................................................ 12
			STANDARD TIGHTENING TORQUE....................................... 13
			ELECTRIC WIRE CODE............................................... 15
			CONVERSION TABLE................................................. 16
10 STRUCTURE AND FUNCTION.................................................... 24
	ENGINE RELATED PARTS..................................................... 29
	RADIATOR - OIL COOLER.................................................... 30
	POWER TRAIN.............................................................. 31
	FINAL DRIVE.............................................................. 32
	SWING CIRCLE............................................................. 33
	SWING MACHINERY.......................................................... 34
	TRACK FRAME, RECOIL SPRING............................................... 35
	TRACK SHOE............................................................... 36
	HYDRAULIC TANK - S/N K30001 and up'...................................... 38
	HYDRAULIC TANK - S/N K34001 and up....................................... 39
	HYDRAULIC PUMP........................................................... 40
		BASIC PUMP........................................................... 40
			OUTLINE.......................................................... 40
			FUNCTION......................................................... 43
			STRUCTURE........................................................ 43
			OPERATION........................................................ 44
		LS AND PC VALVE...................................................... 47
			FUNCTION......................................................... 48
			OPERATION........................................................ 49
	CONTROL VALVE............................................................ 59
		OUTLINE.............................................................. 59
		9-SPOOL VALVE (STANDARD + 3 SERVICE VALVES).......................... 60
			MAIN STRUCTURE................................................... 61
		6-SPOOL VALVE (7 SPOOL IS STANDARD).................................. 64
	SAFETY-SUCTION VALVE FOR SERVICE VALVE................................... 65
	SELF REDUCING PRESSURE VALVE............................................. 66
		FUNCTION............................................................. 68
		OPERATION............................................................ 68
	CLSS..................................................................... 71
		OUTLINE OF CLSS...................................................... 71
			FEATURES......................................................... 71
			STRUCTURES....................................................... 71
			BASIC PRINCIPLE.................................................. 72
		OPERATION OF EACH FUNCTION AND VALVE................................. 74
			HYDRAULIC CIRCUIT DIAGRAM FOR SYSTEM............................. 74
			UNLOAD VALVE..................................................... 77
			MAIN RELIEF VALVE (2 STAGE TYPE)................................. 78
			INTRODUCTION OF LS PRESSURE...................................... 80
			LS BYPASS VALVE.................................................. 81
			PRESSURE COMPENSATION VALVE...................................... 82
			SHUTTLE VALVE INSIDE PRESSURE COMPENSATION VALVE................. 85
			VARIABLE TYPE PRESSURE COMPENSATION VALVE (FOR SERVICE VALVE).... 86
			BOOM REGENERATION CIRCUIT........................................ 88
			ARM REGENERATION CIRCUIT......................................... 90
			PUMP MERGE-DIVIDER VALVE......................................... 91
			LS SELECT VALVE.................................................. 93
			SPOOL STROKE MODULATION.......................................... 94
			TIMING VALVE..................................................... 95
			2 STAGE SAFETY VALVE (INSTALLED TO BOOM CYLINDER HEAD)........... 96
		OPERATION OF CLSS SYSTEM AS A WHOLE.................................. 98
	CENTER SWIVEL JOINT......................................................113
	SWING MOTOR..............................................................114
		BASIC MOTOR..........................................................114
	TRAVEL MOTOR.............................................................120
		OPERATION OF MOTOR...................................................122
		OPERATION OF PARKING BRAKE...........................................124
		OPERATION OF BRAKE VALVE.............................................125
	VALVE CONTROL............................................................129
	WORK EQUIPMENT - SWING PPC VALVE.........................................130
		OPERATION............................................................132
	TRAVEL PPC VALVE.........................................................134
	SERVICE PPC VALVE........................................................138
	SAFETY LOCK VALVE........................................................142
	PPC ACCUMULATOR..........................................................142
	STRAIGHT-TRAVEL SYSTEM...................................................143
	EPC SOLENOID VALVE.......................................................144
	OVERLOAD WARNING DEVICE..................................................146
	HOSE BURST PROTECTION VALVE (BOOM).......................................148
	WORK EQUIPMENT...........................................................151
	ENGINE CONTROL SYSTEM....................................................153
	ELECTRONIC CONTROL SYSTEM................................................159
		CONTROL FUNCTION.....................................................159
		PUMP AND ENGINE MUTUAL CONTROL FUNCTION..............................161
		PUMP AND VALVE CONTROL FUNCTION......................................166
		POWER MAXIMIZING - SWIFT SLOW-DOWN FUNCTION..........................169
		AUTO DECELERATION FUNCTION...........................................170
		AUTOMATIC WARMING-UP AND ENGINE OVERHEAT PREVENTION FUNCTION.........172
		SWING CONTROL SYSTEM.................................................174
		TRAVEL CONTROL FUNCTION'.............................................176
		ACTIVE MODE FUNCTION.................................................178
		COMPONENTS OF SYSTEM.................................................181
	MACHINE MONITOR SYSTEM...................................................184
		FUNCTION.............................................................184
		MONITOR PANEL........................................................185
		MONITOR DISPLAY......................................................186
		CONTENT OF DISPLAY...................................................187
		OIL MAINTENANCE FUNCTION.............................................188
		MODE SELECTION SWITCHES..............................................190
	HOW TO SET TELEPHONE NUMBER..............................................191
	SENSORS..................................................................192
20 TESTING AND ADJUSTING.....................................................196
	TESTING AND ADJUSTING....................................................197
		STANDARD VALUE TABLE.................................................203
			FOR ENGINE PC290-6K..............................................203
			FOR CHASSIS......................................................204
		TOOLS FOR TESTING, ADJUSTING AND TROUBLESHOOTING.....................220
		MEASURING ENGINE SPEED...............................................221
		MEASURING EXHAUST GAS COLOR..........................................222
		ADJUSTING VALVE CLEARANCE............................................223
		MEASURING COMPRESSION PRESSURE.......................................224
		MEASURING BLOW-BY PRESSURE...........................................224
		TESTING AND ADJUSTING FUEL INJECTION TIMING..........................225
		MEASURE ENGINE OIL PRESSURE..........................................226

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