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Komatsu PC290LC-8, PC290NLC-8 Hydraulic Excavator Workshop Repair Service Manual

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Komatsu PC290LC-8, PC290NLC-8 Hydraulic Excavator Workshop Repair Service Manual

This is a COMPLETE Service and Repair Manual for your Komatsu PC290LC-8, PC290NLC-8 Hydraulic Excavator. It covers every single detail.

This QUALITY manual is 100 percents COMPLETE and INTACT, no MISSING/CORRUPT pages/sections to freak you out! Detailed illustrations, exploded diagrams, drawings and photos guide you through every service repair procedure. This manual can be viewed on any computer, as well as zoomed and printed. All repair procedures are covered A-Z. This manual for Komatsu PC290LC-8, PC290NLC-8 Hydraulic Excavator makes any repair job easy to do with very easy to follow step-by-step instructions & pictures on all areas of repair.

Fixing problems in your vehicle is a do-it-approach with the this Repair Manual for Komatsu PC290LC-8, PC290NLC-8 Hydraulic Excavator as they contain comprehensive instructions and procedures on how to fix the problems in your ride. Repair Manuals can come in handy especially when you have to do immediate repair. The durability of your vehicle/bike is unquestionable but you also know that no matter how tough they are, constant use can cause them to deteriorate. When this happens, and ultimately it will, you will have to replace them. Some car/bike parts are very simple to mount and do not require professional help. By having a trusty repair manual you not only save money but you also get to experience the fun of do-it-yourself projects. A repair manual comes with comprehensive details regarding technical data, diagrams, a complete list of car parts and pictures. Even the most novice can easily follow the step-by-step guides which are made simple by the illustrations and drawings. You can find a complete list of accessories that can further enhance the performance of your engine. This Repair Manual for Komatsu PC290LC-8, PC290NLC-8 Hydraulic Excavator can save you a lot of time. These packages are complete with all the information needs. You will surely enjoy browsing through the pages and learning how to repair the different parts. It makes you up-to-date and more knowledge. Now, you dont have to rely on your mechanic for the simplest repair. You can do it at the comfort of your garage. All pages are printable, so print off what you need and take it with you into the garage or workshop. This manual will never get dirty and rip as you can keep it safely on your PC and print the pages you need in matter of seconds.

===========
Format: PDF
System: All Versions of Windows, Mac, iOS, BB, Android, etc..
Requirements: PDF Reader.
Printable: Yes

Komatsu PC290LC-8, PC290NLC-8 Hydraulic Excavator
===========
Table of contents
1
00 Index and foreword
Index
UEN00002-01
Organization list of the shop manual .......................................................................................
2
Table of contents......................................................................................................................
4
Foreword and general information
UEN00003-00
Foreword and general information ..............................................................................................
2
Safety notice ............................................................................................................................
2
How to read the shop manual..................................................................................................
6
Explanation of terms for maintenance standard ......................................................................
8
Handling electric equipment and hydraulic component ........................................................... 10
How to read electric wire code................................................................................................. 18
Method of disassembling and connecting push-pull type coupler ........................................... 21
Standard tightening torque table.............................................................................................. 24
Conversion table...................................................................................................................... 28
01 Specification
Specification and technical data
UEN00004-00
Specification and technical data ..................................................................................................
2
Specification dimension drawings............................................................................................
2
Working range diagram ...........................................................................................................
3
Specifications...........................................................................................................................
4
Weight table .............................................................................................................................
6
Table of fuel, coolant and lubricants ........................................................................................
8
10 Structure, function and maintenance standard
Engine and cooling system
UEN00005-00
Engine and cooling system .........................................................................................................
2
Engine related parts.................................................................................................................
2
Radiator, oil cooler, aftercooler and fuel cooler........................................................................
3
Power train
UEN00006-00
Power train ..................................................................................................................................
2
Power train...............................................................................................................................
2
Final drive ................................................................................................................................
4
Swing machinery .....................................................................................................................
6
Swing circle..............................................................................................................................
8
Undercarriage and frame
UEN00007-00
Undercarriage and frame ............................................................................................................
2
Track frame and recoil spring ..................................................................................................
2
Idler..........................................................................................................................................
4
Carrier roller.............................................................................................................................
6
Track roller ...............................................................................................................................
7
Track shoe ...............................................................................................................................
8
Hydraulic system, Part 1
UEN00008-01
Hydraulic system, Part 1 .............................................................................................................
2
Hydraulic equipment layout drawing........................................................................................
2
Hydraulic tank and filter ...........................................................................................................
4
Hydraulic pump........................................................................................................................
6
Pilot oil filter ............................................................................................................................. 28
Hydraulic system, Part 2
UEN00009-00
Hydraulic system, Part 2 .............................................................................................................
2
Control valve............................................................................................................................
2
CLSS ....................................................................................................................................... 13
Functions and operation by valve ............................................................................................ 18
4
PC290LC, 290NLC-800 Index and foreword
UEN00002-01
Hydraulic system, Part 3
UEN00010-01
Hydraulic system, Part 3 .............................................................................................................
3
Swing motor.............................................................................................................................
3
Center swivel joint ................................................................................................................... 12
Travel motor............................................................................................................................. 15
PPC valve................................................................................................................................ 28
Valve control ............................................................................................................................ 50
ATT EPC Valve Assembly ....................................................................................................... 52
Solenoid valve ......................................................................................................................... 54
PPC Accumulator .................................................................................................................... 56
Return oil filter ......................................................................................................................... 57
Attachment circuit selector valve ............................................................................................. 58
Quick coupler control valve ..................................................................................................... 60
Quick coupler control valve ..................................................................................................... 62
Hydraulic cylinder .................................................................................................................... 64
Work equipment
UEN00011-00
Work equipment ..........................................................................................................................
2
Dimensions of components .....................................................................................................
2
Cab and its attachments
UEN00012-00
Cab and its attachments..............................................................................................................
2
Air conditioner piping ...............................................................................................................
2
Electrical system
UEN00013-01
Electrical system .........................................................................................................................
3
Engine control..........................................................................................................................
3
Electrical control system.......................................................................................................... 12
Monitor system ........................................................................................................................ 37
Sensor ..................................................................................................................................... 68
PPC Levers ............................................................................................................................. 71
KOMTRAX terminal system..................................................................................................... 73
20 Standard value table
Standard service value table
UEN00014-00
Standard service value table .......................................................................................................
2
Standard value table for engine related parts ..........................................................................
2
Standard value table for chassis related parts.........................................................................
3
30 Testing and adjusting
Testing and adjusting, Part 1
UEN00015-00
Testing and adjusting, Part 1.......................................................................................................
3
Tools for testing, adjusting, and troubleshooting .....................................................................
3
Measuring engine speed .........................................................................................................
6
Measuring intake air pressure (boost pressure) ......................................................................
7
Checking exhaust gas color ....................................................................................................
8
Adjusting valve clearance........................................................................................................
9
Measuring compression pressure ........................................................................................... 11
Measuring blow-by pressure ................................................................................................... 13
Measuring engine oil pressure ................................................................................................ 14
Handling fuel system parts ...................................................................................................... 15
Releasing residual pressure from fuel system......................................................................... 15
Measuring fuel pressure .......................................................................................................... 16
Measuring fuel return rate and leakage................................................................................... 18
Bleeding air from fuel circuit .................................................................................................... 20
Checking fuel circuit for leakage.............................................................................................. 22
Checking and adjusting air conditioner compressor belt tension ............................................ 23
Measuring swing circle bearing clearance............................................................................... 24
Checking and adjusting track shoe tension ............................................................................. 25
PC290LC, 290NLC-8
5UEN00002-01
00 Index and foreword
Measuring and adjusting oil pressure in work equipment, swing, and travel circuits............... 27
Measuring control circuit basic pressure ................................................................................. 30
Measuring and adjusting oil pressure in pump PC control circuit ............................................ 31
Measuring and adjusting oil pressure in pump LS control circuit............................................. 34
Measuring solenoid valve output pressure .............................................................................. 38
Measuring PPC valve output pressure .................................................................................... 41
Adjusting play of work equipment and swing PPC valves ....................................................... 43
Checking parts which cause hydraulic drift of work equipment ............................................... 45
Releasing residual pressure from hydraulic circuit .................................................................. 46
Measuring oil leakage.............................................................................................................. 47
Bleeding air from each part...................................................................................................... 50
Checking cab tipping stopper .................................................................................................. 52
Adjusting mirrors...................................................................................................................... 54
Testing and adjusting, Part 2
UEN00016-00
Testing and adjusting, Part 2 .......................................................................................................
2
Special functions of machine monitor ......................................................................................
2
Testing and adjusting, Part 3
UEN00017-00
Testing and adjusting, Part 3 .......................................................................................................
2
Handling high-voltage circuit of engine controller ....................................................................
2
Preparation work for troubleshooting of electrical system .......................................................
3
Procedure for testing diodes....................................................................................................
7
Pm Clinic service .....................................................................................................................
9
40 Troubleshooting
General information on troubleshooting
UEN00018-00
General information on troubleshooting ......................................................................................
2
Points to remember when troubleshooting ..............................................................................
2
Sequence of events in troubleshooting....................................................................................
3
Check before troubleshooting..................................................................................................
4
Classification and procedures for troubleshooting...................................................................
5
How to read electric wire code.................................................................................................
9
Connection table for connector pin numbers ........................................................................... 12
T-boxes and T-adapters table .................................................................................................. 35
Troubleshooting by failure code (Display of code), Part 1
UEN00019-00
Troubleshooting by failure code (Display of code), Part 1...........................................................
3
Failure codes table ..................................................................................................................
3
Before carrying out troubleshooting when failure code is displayed........................................
8
Information in troubleshooting table......................................................................................... 12
Failure code [989L00] Engine Controller Lock Caution 1 ........................................................ 14
Failure code [989M00] Engine Controller Lock Caution 2 ....................................................... 14
Failure code [989N00] Engine Controller Lock Caution 3........................................................ 15
Failure code [AA10NX] Air Cleaner Clogging .......................................................................... 15
Failure code [AB00KE] Charge Voltage Low ........................................................................... 16
Failure code [[email protected]] Eng Oil Press. Low........................................................................... 18
Failure code [[email protected]] Eng Oil Level Low............................................................................. 18
Failure code [[email protected]] Eng Water Overheat ........................................................................ 19
Failure code [[email protected]] Eng Water Level Low ....................................................................... 19
Failure code [[email protected]] Hydr Oil Overheat ............................................................................ 20
Failure code [CA111] EMC Critical Internal Failure.................................................................. 20
Failure code [CA115] Eng Ne and Bkup Speed Sens Error..................................................... 21
Failure code [CA122] Chg Air Press Sensor High Error .......................................................... 22
Failure code [CA123] Chg Air Press Sensor Low Error........................................................... 24
Failure code [CA131] Throttle Sensor High Error .................................................................... 26
Failure code [CA132] Throttle Sensor Low Error..................................................................... 28
Failure code [CA144] Coolant Temp Sens High Error ............................................................. 30
Failure code [CA145] Coolant Temp Sens Low Error .............................................................. 32
Failure code [CA153] Chg Air Temp Sensor High Error .......................................................... 34
6
PC290LC, 290NLC-800 Index and foreword
UEN00002-01
Failure code [CA154] Chg Air Temp Sensor Low Error ........................................................... 36
Failure code [CA155] Chg Air Temp High Speed Derate......................................................... 38
Failure code [CA187] Sens Supply 2 Volt Low Error ............................................................... 40
Failure code [CA221] Ambient Press Sens High Error............................................................ 42
Failure code [CA222] Ambient Press Sens Low Error............................................................. 44
Failure code [CA227] Sens Supply 2 Volt High Error .............................................................. 46
Failure code [CA234] Eng Overspeed..................................................................................... 47
Failure code [CA238] Ne Speed Sens Supply Volt Error......................................................... 48
Failure code [CA271] IMV/PCV1 Short Error .......................................................................... 49
Failure code [CA272] IMV/PCV1 Open Error .......................................................................... 50
Failure code [CA322] Inj #1 (L#1) Open/Short Error ............................................................... 52
Failure code [CA323] Inj #5 (L#5) Open/Short Error ............................................................... 54
Failure code [CA324] Inj #3 (L#3) Open/Short Error ............................................................... 56
Failure code [CA325] Inj #6 (L#6) Open/Short Error ............................................................... 58
Failure code [CA331] Inj #2 (L#2) Open/Short Error ............................................................... 60
Failure code [CA332] Inj #4 (L#4) Open/Short Error ............................................................... 62
Troubleshooting by failure code (Display of code), Part 2
UEN00020-00
Troubleshooting by failure code (Display of code), Part 2...........................................................
3
Failure code [CA342] Calibration Code Incompatibility ...........................................................
3
Failure code [CA351] Injectors Drive Circuit Error...................................................................
4
Failure code [CA352] Sens Supply 1 Volt Low Error ...............................................................
6
Failure code [CA386] Sens Supply 1 Volt High Error ..............................................................
8
Failure code [CA428] Water in Fuel Sensor High Error........................................................... 10
Failure code [CA429] Water in Fuel Sensor Low Error............................................................ 12
Failure code [CA435] Eng Oil Press Sw Error......................................................................... 14
Failure code [CA441] Battery Voltage Low Error ..................................................................... 15
Failure code [CA442] Battery Voltage High Error .................................................................... 18
Failure code [CA449] Rail Press Very High Error.................................................................... 20
Failure code [CA451] Rail Press Sensor High Error................................................................ 22
Failure code [CA452] Rail Press Sensor Low Error ................................................................ 24
Failure code [CA488] Chg Air Temp High Torque Derate........................................................ 26
Failure code [CA553] Rail Press High Error ............................................................................ 26
Failure code [CA559] Rail Press Low Error............................................................................. 27
Failure code [CA689] Eng Ne Speed Sensor Error ................................................................. 28
Failure code [CA731] Eng Bkup Speed Sens Phase Error...................................................... 30
Failure code [CA757] All Continuous Data Lost Error ............................................................. 32
Failure code [CA778] Eng Bkup Speed Sensor Error.............................................................. 34
Failure code [CA1633] KOMNET Datalink Timeout Error........................................................ 36
Failure code [CA2185] Throt Sens Sup Volt High Error .......................................................... 38
Failure code [CA2186] Throt Sens Sup Volt Low Error ........................................................... 39
Failure code [CA2249] Rail Press Very Low Error................................................................... 40
Failure code [CA2311] IMV Solenoid Error.............................................................................. 42
Failure code [CA2555] Grid Htr Relay Volt High Error............................................................. 44
Failure code [CA2556] Grid Htr Relay Volt Low Error ............................................................. 46
Failure code [D19JKZ] Personal Code Relay Abnormality...................................................... 48
Failure code [D862KA] GPS Antenna Discon ......................................................................... 50
Failure code [DA25KP] 5V Sensor 1 Power Abnormality ........................................................ 51
Failure code [DA29KQ] Model Selection Abnormality ............................................................. 58
Troubleshooting by failure code (Display of code), Part 3
UEN00021-00
Troubleshooting by failure code (Display of code), Part 3...........................................................
4
Failure code [DA2RMC] CAN Discon (Pump Con Detected) ..................................................
4
Failure code [DAFGMC] GPS Module Error............................................................................
6
8
Failure code [DAFRMC] CAN Discon (Monitor Detected) .......................................................
Failure code [DGH2KB] Hydr Oil Sensor Short ....................................................................... 10
Failure code [DHPAMA] F Pump Press Sensor Abnormality................................................... 12
Failure code [DHPBMA] R Pump Press Sensor Abnormality.................................................. 14
Failure code [DHS3MA] Arm Curl PPC Press Sensor Abnormality......................................... 16
PC290LC, 290NLC-8
7UEN00002-01
00 Index and foreword
Failure code [DHS4MA] Bucket Curl PPC Press Sensor Abnormality .................................... 18
Failure code [DHS8MA] Boom Raise PPC Press Sensor Abnormality ................................... 20
Failure code [DHSAMA] Swing RH PPC Press Sensor Abnormality....................................... 22
Failure code [DHSBMA] Swing LH PPC Press Sensor Abnormality ....................................... 24
Failure code [DHSDMA] Bucket Dump PPC Press Sensor Abnormality................................. 26
Failure code [DHX1MA] Overload Sensor Abnormality (Analog) ............................................ 28
Failure code [DW43KA] Travel Speed Sol Discon ................................................................... 30
Failure code [DW43KB] Travel Speed Sol Short ..................................................................... 32
Failure code [DW45KA] Swing Brake Sol Discon.................................................................... 34
Failure code [DW45KB] Swing Brake Sol Short ...................................................................... 36
Failure code [DW91KA] Travel Junction Sol Discon................................................................ 38
Failure code [DW91KB] Travel Junction Sol Short .................................................................. 40
Failure code [DWA2KA] Service Sol Discon............................................................................ 42
Failure code [DWA2KB] Service Sol Short .............................................................................. 43
Failure code [DWK0KA] 2-stage Relief Sol Discon ................................................................. 44
Failure code [DWK0KB] 2-stage Relief Sol Short.................................................................... 46
Troubleshooting by failure code (Display of code), Part 4
UEN00022-00
Troubleshooting by failure code (Display of code), Part 4...........................................................
4
Failure code [DXA8KA] PC-EPC (F) Sol Discon .....................................................................
4
Failure code [DXA8KB] PC-EPC (F) Sol Short........................................................................
6
Failure code [DXA9KA] PC-EPC (R) Sol Discon .....................................................................
8
Failure code [DXA9KB] PC-EPC (R) Sol Short ....................................................................... 10
Failure code [DXE0KA] LS-EPC Sol Discon............................................................................ 12
Failure code [DXE0KB] LS-EPC Sol Short .............................................................................. 14
Failure code [DXE4KA] Service Current EPC Discon ............................................................. 16
Failure code [DXE4KB] Service Current EPC Short................................................................ 18
Failure code [DXE5KA] Merge-divider Main Sol Discon.......................................................... 20
Failure code [DXE5KB] Merge-divider Main Sol Short ............................................................ 22
Failure code [DXE6KA] Merge-divider LS Sol Discon ............................................................. 24
Failure code [DXE6KB] Merge-divider LS Sol Short................................................................ 26
Failure code [DY20KA] Wiper Working Abnormality................................................................ 28
Failure code [DY20MA] Wiper Parking Abnormality ................................................................ 30
Failure code [DY2CKA] Washer Drive Discon ......................................................................... 32
Failure code [DY2CKB] Washer Drive Short ........................................................................... 34
Failure code [DY2DKB] Wiper Drive (For) Short ..................................................................... 36
Failure code [DY2EKB] Wiper Drive (Rev) Short..................................................................... 38
Troubleshooting of electrical system (E-mode)
UEN00023-00
Troubleshooting of electrical system (E-mode) ...........................................................................
3
Before carrying out troubleshooting of electrical system .........................................................
3
Information in troubleshooting table.........................................................................................
5
E-1 When starting switch turned ON, machine monitor displays nothing ................................
6
E-2 When starting switch turned ON (before starting engine), basic check item lights up ......
8
E-3 Engine does not start (Engine does not turn).................................................................... 11
E-4 Preheater does not operate .............................................................................................. 14
E-5 Automatic warm-up system does not operate (in cold season) ........................................ 16
E-6 All work equipment, swing, and travel mechanism do not move or cannot be locked ...... 18
E-7 Precaution lights up while engine is running ..................................................................... 20
E-8 Emergency stop item lights up while engine is running .................................................... 25
E-9 Engine coolant temperature gauge does not indicate normally ........................................ 26
E-10 Hydraulic oil temperature gauge does not indicate normally .......................................... 27
E-11 Fuel level gauge does not indicate normally ................................................................... 29
E-12 Contents of display by machine monitor are different from applicable machine ............. 31
E-13 Machine monitor does not display some items ............................................................... 31
E-14 Function switch does not work ........................................................................................ 31
E-15 Auto-decelerator does not operate normally ................................................................... 32
E-16 Working mode does not change ..................................................................................... 33
E-17 Travel speed does not change ........................................................................................ 34
8
PC290LC, 290NLC-800 Index and foreword
UEN00002-01
E-18 Alarm buzzer cannot be stopped .................................................................................... 35
E-19 Windshield wiper and window washer do not operate .................................................... 36
E-20 Power maximizing function does not operate normally................................................... 38
E-21 Swing holding brake does not operate normally ............................................................. 40
E-22 Travel alarm does not sound or does not stop sounding ................................................ 42
E-23 Air conditioner does not operate normally (including air conditioner abnormality record) 44
E-24 When starting switch is turned OFF, service meter is not displayed ............................... 56
E-25 Machine monitor cannot be set in service mode............................................................. 56
E-26 Monitoring function does not display lever control signal normally ................................. 57
E-27 KOMTRAX system does not operate normally ............................................................... 65
Troubleshooting of hydraulic and mechanical system (H-mode)
UEN00024-00
Troubleshooting of hydraulic and mechanical system (H-mode) ................................................
4
System diagram of hydraulic and mechanical system.............................................................
4
Information in troubleshooting table ........................................................................................
6
H-1 Speed or power of whole work equipment, swing, and travel is low.................................
7
H-2 Engine speed lowers extremely or engine stalls...............................................................
9
H-3 Work equipment, swing, and travel systems do not work ................................................. 10
H-4 Abnormal sound comes out from around hydraulic pump ................................................ 10
H-5 Auto-decelerator does not operate ................................................................................... 11
H-6 Fine control performance or response is low.................................................................... 11
H-7 Speed or power of boom is low......................................................................................... 12
H-8 Speed or power of arm is low ........................................................................................... 13
H-9 Speed or power of bucket is low ....................................................................................... 14
H-10 Work equipment does not move singly ........................................................................... 14
H-11 Hydraulic drift of work equipment is large ....................................................................... 15
H-12 Time lag of work equipment is large ............................................................................... 17
H-13 When part of work equipment is relieved singly, other parts of work equipment move .. 17
H-14 Power maximizing function does not work...................................................................... 18
H-15 In compound operation of work equipment, speed of part loaded more is low............... 18
H-16 When machine swings and raises boom simultaneously, boom rising speed is low ...... 19
H-17 When machine swings and travels simultaneously, travel speed lowers largely ............ 19
H-18 Machine deviates during travel ....................................................................................... 20
H-19 Travel speed is low ......................................................................................................... 21
H-20 Machine is not steered well or steering power is low...................................................... 22
H-21 Travel speed does not change or travel speed is low/high ............................................. 23
H-22 Travel system does not move (only one side) ................................................................ 24
H-23 Upper structure does not swing ...................................................................................... 25
H-24 Swing acceleration or swing speed is low ...................................................................... 27
H-25 Upper structure overruns remarkably when it stops swinging ........................................ 28
H-26 Large shock is made when upper structure stops swinging ........................................... 29
H-27 Large sound is made when upper structure stops swinging ........................................... 29
H-28 Hydraulic drift of swing is large ....................................................................................... 30
H-29 Attachment circuit is not changed ................................................................................... 31
H-30 Oil flow in attachment circuit cannot be controlled.......................................................... 31
Troubleshooting of engine (S-mode)
UEN00025-00
Troubleshooting of engine (S-mode)...........................................................................................
3
Method of using troubleshooting chart ....................................................................................
3
S-1 Starting performance is poor.............................................................................................
6
S-2 Engine does not start ........................................................................................................
7
S-3 Engine does not pick up smoothly .................................................................................... 10
S-4 Engine stops during operations ........................................................................................ 11
S-5 Engine does not rotate smoothly ...................................................................................... 12
S-6 Engine lack output (or lacks power).................................................................................. 13
S-7 Exhaust smoke is black (incomplete combustion) ............................................................ 14
S-8 Oil consumption is excessive (or exhaust smoke is blue)................................................. 15
S-9 Oil becomes contaminated quickly ................................................................................... 16
S-10 Fuel consumption is excessive ....................................................................................... 17
PC290LC, 290NLC-8
9UEN00002-01
00 Index and foreword
S-11 Oil is in coolant (or coolant spurts back or coolant level goes down) ..............................
S-12 Oil pressure drops...........................................................................................................
S-13 Oil level rises (Entry of coolant/fuel)................................................................................
S-14 Coolant temperature becomes too high (overheating)....................................................
S-15 Abnormal noise is made..................................................................................................
S-16 Vibration is excessive......................................................................................................
18
19
20
21
22
23
50 Disassembly and assembly
General information on disassembly and assembly
UEN00026-00
General information on disassembly and assembly....................................................................
2
How to read this manual ..........................................................................................................
2
Coating materials list ...............................................................................................................
4
Special tool list .........................................................................................................................
7
Sketches of special tools ......................................................................................................... 12
Engine and cooling system
UEN00027-00
Engine and cooling system .........................................................................................................
2
Removal and installation of fuel supply pump assembly .........................................................
2
Removal and installation of fuel injector assembly ..................................................................
4
Removal and installation of engine front seal .......................................................................... 11
Removal and installation of engine rear seal........................................................................... 14
Removal and installation of cylinder head assembly ............................................................... 17
Removal and installation of radiator assembly ........................................................................ 29
Removal and installation of hydraulic oil cooler assembly....................................................... 32
Removal and installation of aftercooler assembly ................................................................... 34
Removal and installation of fuel cooler assembly.................................................................... 36
Removal and installation of engine and hydraulic pump assembly ......................................... 37
Power train
UEN00028-00
Power train ..................................................................................................................................
2
Removal and installation of final drive assembly .....................................................................
2
Disassembly and assembly of final drive assembly.................................................................
3
Removal and installation of swing motor and swing machinery assembly .............................. 12
Disassembly and assembly of swing motor and swing machinery assembly.......................... 14
Removal and installation of swing circle assembly.................................................................. 23
Undercarriage and frame
UEN00029-00
Undercarriage and frame ............................................................................................................
2
Disassembly and assembly of carrier roller assembly.............................................................
2
Disassembly and assembly of track roller assembly ...............................................................
3
Disassembly and assembly of idler assembly .........................................................................
4
Disassembly and assembly of recoil spring assembly.............................................................
7
Removal and installation of sprocket .......................................................................................
9
Expansion and installation of track shoe assembly ................................................................. 10
Removal and installation of revolving frame assembly ............................................................ 12
Removal and installation of counterweight assembly .............................................................. 14
Hydraulic system
UEN00030-00
Hydraulic system .........................................................................................................................
2
Removal and installation of center swivel joint assembly ........................................................
2
Disassembly and assembly of center swivel joint assembly....................................................
4
Removal and installation of hydraulic tank assembly ..............................................................
5
Removal and installation of control valve assembly ................................................................
8
Disassembly and assembly of control valve assembly............................................................ 13
Removal and installation of hydraulic pump assembly ............................................................ 17
Removal and installation of oil seal in hydraulic pump input shaft........................................... 21
Disassembly and assembly of work equipment PPC valve assembly..................................... 22
Disassembly and assembly of travel PPC valve assembly ..................................................... 23
Disassembly and assembly of hydraulic cylinder assembly .................................................... 24
10
PC290LC, 290NLC-800 Index and foreword
UEN00002-01
Work equipment
UEN00031-00
Work equipment ..........................................................................................................................
2
Removal and installation of work equipment assembly ...........................................................
2
Cab and its attachments
UEN00032-00
Cab and its attachments..............................................................................................................
2
Removal and installation of operator's cab assembly..............................................................
2
Removal and installation of operator cab glass (stuck glass)..................................................
5
Removal and installation of front window assembly ................................................................ 15
Removal and installation of floor frame assembly ................................................................... 22
Electrical system
UEN00033-00
Electrical system .........................................................................................................................
2
Removal and installation of air conditioner unit assembly .......................................................
2
Removal and installation of KOMTRAX communication modem assembly ............................
5
Removal and installation of monitor assembly ........................................................................
6
Removal and installation of pump controller assembly ...........................................................
8
Removal and installation of engine controller assembly..........................................................
9
90 Diagrams and drawings
Hydraulic diagrams and drawings
UEN00034-01
Hydraulic diagrams and drawings (For PC290-8 K50001 K50104) .........................................
3
Hydraulic circuit diagram 1/2 ...................................................................................................
3
Hydraulic circuit diagram 2/2 ...................................................................................................
5
Hydraulic diagrams and drawings (For PC290-8 K50105 and up)) ............................................
7
Hydraulic circuit diagram 1/2 ...................................................................................................
7
Hydraulic circuit diagram 2/2 ...................................................................................................
9
Electrical diagrams and drawings
UEN00035-01
Electrical circuit diagram (For PC290-8 K50001 K50104) .......................................................
3
Electrical circuit diagram (1/5) .................................................................................................
3
Electrical circuit diagram (2/5) .................................................................................................
5
Electrical circuit diagram (3/5) .................................................................................................
7
Electrical circuit diagram (4/5) .................................................................................................
9
Electrical circuit diagram (5/5) ................................................................................................. 11
Electrical diagrams and drawings (For PC290 K50105 and up) ................................................. 13
Electrical circuit diagram (1/5) ................................................................................................. 13
Electrical circuit diagram (2/5) ................................................................................................. 15
Electrical circuit diagram (3/5) ................................................................................................. 17
Electrical circuit diagram (4/5) ................................................................................................. 19
Electrical circuit diagram (5/5) ................................................................................................. 21


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