Related Manuals for Komatsu PC27MR-3
Summary of Contents for Komatsu PC27MR-3
- Page 1 SEN04063-07 HYDRAULIC PC27MR EXCAVATOR PC30MR PC35MR PC27MR- 20002 PC30MR- 30001 SERIAL NUMBERS and up PC35MR- 15001...
- Page 2 Machine model Serial number PC27MR-3 20002 and up PC30MR-3 30001 and up PC35MR-3 15001 and up 00 Index and foreword 100 Index Composition of shop manual .......................... 2 Table of contents ............................. 4 PC27MR-3, PC30MR-3, PC35MR-3 00-100 Find manuals at https://best-manuals.com...
- Page 3 100 General information on troubleshooting................SEN04382-01 110 Troubleshooting by failure code ..................SEN05816-00 Q 200 Troubleshooting of electrical system (E-mode)..............SEN04383-01 300 Troubleshooting of hydraulic and mechanical system (H-mode) ........SEN04384-00 400 Troubleshooting of engine (S-mode).................. SEN04385-00 00-100 PC27MR-3, PC30MR-3, PC35MR-3 Find manuals at https://best-manuals.com...
- Page 4 500 Hydraulic system ........................SEN04390-00 600 Work equipment .........................SEN04391-00 700 Cab and its attachments.....................SEN04392-00 800 Electrical system ........................SEN04393-01 90 Diagrams and drawings ......................SEN04083-03 100 Hydraulic diagrams and drawings ..................SEN04084-01 200 Electrical diagrams and drawings..................SEN04085-03 PC27MR-3, PC30MR-3, PC35MR-3 00-100 Find manuals at https://best-manuals.com...
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Page 5: Table Of Contents
Hydraulic tank, filter............................Center swivel joint ............................Travel motor ..............................Hydraulic cylinder............................15 Solenoid valve............................... 20 Multi-control valve ............................26 420 Hydraulic system, Part 2 SEN04074-00 Hydraulic pump ............................. Control valve ..............................18 00-100 PC27MR-3, PC30MR-3, PC35MR-3 Find manuals at https://best-manuals.com... - Page 6 Releasing residual pressure from hydraulic tank................... 45 Pressurizing hydraulic tank..........................45 How to open and close (tilt) floor ........................46 Inspection procedures for diode ........................51 Functions and flow of operator and service mode..................52 PC27MR-3, PC30MR-3, PC35MR-3 00-100 Find manuals at https://best-manuals.com...
- Page 7 E-8 Preheating system does not operate or preheater does not become hot..........34 E-9 Coolant temperature gauge is abnormal ....................36 E-10 Fuel level gauge is abnormal........................ 44 E-11 Service meter does not operate while engine is running ..............52 00-100 PC27MR-3, PC30MR-3, PC35MR-3 Find manuals at https://best-manuals.com...
- Page 8 S-12 Oil pressure drops..........................19 S-13 Oil level rises (Entry of coolant/fuel) ..................... 20 S-14 Coolant temperature becomes too high (overheating)................21 S-15 Abnormal noise is made ........................22 S-16 Vibration is excessive ........................... 23 PC27MR-3, PC30MR-3, PC35MR-3 00-100 Find manuals at https://best-manuals.com...
- Page 9 Removal and installation of air conditioner unit assembly (If equipped) ............90 Diagrams and drawings 100 Hydraulic diagrams and drawings SEN04084-01 Hydraulic circuit diagram..........................200 Electrical diagrams and drawings SEN04085-03 Electrical circuit diagram ..........................Connector list and stereogram ........................19 00-100 PC27MR-3, PC30MR-3, PC35MR-3 Find manuals at https://best-manuals.com...
- Page 10 100 Index SEN04065-07 Table of contents PC27MR-3, PC30MR-3, PC35MR-3 00-100 Find manuals at https://best-manuals.com...
- Page 11 SEN04065-07 PC27MR-3, PC30MR-3, PC35MR-3 Hydraulic excavator Form No. SEN04065-07 ©2011 KOMATSU All Rights Reserved Printed in Japan 12-11 00-100...
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Page 12: Table Of Contents
Handling of connectors newly used for engines ................... 20 How to read electric wire code........................23 Precautions when carrying out operation...................... 26 Method of disassembling and connecting push-pull type coupler..............29 Standard tightening torque table ........................32 Conversion table ............................36 PC27MR-3, PC30MR-3, PC35MR-3 00-200... -
Page 13: Safety Notice
Proper service and repair are extremely important for safe machine operation. The service and repair techniques recommended by Komatsu and described in this manual are both effective and safe. Some of these techniques require the use of tools specially designed by Komatsu for the specific purpose. -
Page 14: Working Range Drawing
Operate the hoist or crane slowly to prevent the component from hitting any other part. Do not work with any part still raised by the hoist or crane. PC27MR-3, PC30MR-3, PC35MR-3 00-200... -
Page 15: Table Of Contents
If you grasp them, your fingers as large as 39.2 kN {4,000 kg}. may be caught. After the wire ropes are stretched, stop the crane and check the condi- tion of the slung load, wire ropes, and pads. 00-200 PC27MR-3, PC30MR-3, PC35MR-3... -
Page 16: Swing Machinery
11) After operating the hoist, do not swing the control switch. 12) Remember the position of the main switch so that you can turn off the power immedi- ately in an emergency. PC27MR-3, PC30MR-3, PC35MR-3 00-200... -
Page 17: Track Roller
(R134a) (DENSO: ND-OIL8, VA L E O T H E R M A L S Y S T E M S : ZXL100PG (equivalent to PAG46)) to its O-rings. 00-200 PC27MR-3, PC30MR-3, PC35MR-3... -
Page 18: How To Read The Shop Manual
This section explains the method of reproducing, repairing, and replacing parts. Revision and distribution Any additions, revisions, or other change of notices will be sent to KOMATSU distributors. Get the most up-to-date information before you start any work. PC27MR-3, PC30MR-3, PC35MR-3... -
Page 19: Sprocket
Places where oil, etc. must be drained, and quantity to be drained. Units In this shop manual, the units are indicated with International System of units (SI). For reference, con- ventionally used Gravitational System of units is indicated in parentheses { }. 00-200 PC27MR-3, PC30MR-3, PC35MR-3... -
Page 20: Explanation Of Terms For Maintenance Standard
The tightness of fit is decided by the toler- ance. Indication of size of rotating shaft and hole and relationship drawing of them Example: Tolerance Standard size Shaft Hole –0.030 +0.046 –0.076 PC27MR-3, PC30MR-3, PC35MR-3 00-200... - Page 21 If a product is worn to the allowable value, it must be checked or repaired. Since the permissible value is estimated from vari- ous tests or experiences in most cases, however, it must be judged after consider- ing the operating condition and customer's requirement. 00-200 PC27MR-3, PC30MR-3, PC35MR-3...
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Page 22: Handling Of Electric Equipment And Hydraulic Component
PC27MR-3, PC30MR-3, PC35MR-3 00-200... - Page 23 If there is oil or water in the com- pressed air, the contacts will become even dirtier, so remove the oil and water from the compressed air com- pletely before cleaning with com- pressed air. 00-200 PC27MR-3, PC30MR-3, PC35MR-3...
- Page 24 If the machine is left disassem- bled for a long time, it is particu- larly easy for improper contact to occur, so always cover the con- nector. PC27MR-3, PC30MR-3, PC35MR-3 00-200...
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Page 25: Weight Table
If the connector cannot be cor- rected easily, remove the clamp and adjust the position. If the connector clamp has been removed, be sure to return it to its original position. Check also that there are no loose clamps. 00-200 PC27MR-3, PC30MR-3, PC35MR-3... -
Page 26: Hydraulic Cylinder
Arrow: 1), 2), 3) a Right of figure: Lock (a) is pulled down (not set completely) and lock (b) is set completely. (1): Male connector (2): Female connector (a), (b): Locks PC27MR-3, PC30MR-3, PC35MR-3 00-200... - Page 27 After completely drying the con- n e c t o r, b l o w i t w i t h c o n ta c t restorer and reassemble. 00-200 PC27MR-3, PC30MR-3, PC35MR-3...
- Page 28 If there is any change, there is proba- bly defective contact in that circuit. PC27MR-3, PC30MR-3, PC35MR-3 00-200...
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Page 29: Control Valve
If an oil clean- ing device is used, it is possible to filter out the dirt that has collected during storage, so this is an even more effective method. 00-200 PC27MR-3, PC30MR-3, PC35MR-3... -
Page 30: Table Of Fuel, Coolant And Lubricants
The oil cleaning equipment is used to remove the ultra fine (about 3 ) particles that the filter built in the hydraulic equipment can- not remove, so it is an extremely effective device. PC27MR-3, PC30MR-3, PC35MR-3 00-200... -
Page 31: Handling Of Connectors Newly Used For Engines
(1) cannot be pulled out toward you, if part A does not float. In this case, float part A with a small screw- driver while press lock (L2), and then pull out connector (1) toward you. 00-200 PC27MR-3, PC30MR-3, PC35MR-3... - Page 32 If the lock is on the underside, use flat-head screwdriver [1] since you cannot insert your fingers. While pressing up lock (C) of the connec- tor with flat-head screwdriver [1], pull out connector (3) in the direction of the arrow. PC27MR-3, PC30MR-3, PC35MR-3 00-200...
- Page 33 Insert the connector to the end, while setting its groove. Turn housing (H1) in the direction of the arrow until it “clicks”. Example) Speed sensor of fuel supply pump: G (SUMITOMO-3) a Pull the connector straight up. 00-200 PC27MR-3, PC30MR-3, PC35MR-3...
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Page 34: How To Read Electric Wire Code
Soft polyvinyl chloride automobile Conduc- Annealed copper for elec- Heat-resis- General wiring in extremely tric appliance tant low-volt- –50 to +110 cold district, wiring at high-tem- age wire for Heat-resistant crosslinked perature place Insulator automobile polyethylene PC27MR-3, PC30MR-3, PC35MR-3 00-200... - Page 35 10.4 12.0 13.6 Standard – – – – – – – – – Cov- Standard 10.8 11.4 13.0 13.6 16.0 17.6 er D Standard 10.8 11.4 13.0 13.6 16.0 17.6 “f” of nominal No. denotes flexible”. 00-200 PC27MR-3, PC30MR-3, PC35MR-3...
- Page 36 Others – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – PC27MR-3, PC30MR-3, PC35MR-3 00-200...
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Page 37: Precautions When Carrying Out Operation
07378-10500 07371-30500 If the part is not under hydraulic pressure, the following corks can be used. Dimensions Nominal Part Number number 07049-00608 07049-00811 07049-01012 07049-01215 07049-01418 11.5 07049-01620 13.5 07049-01822 07049-02025 07049-02228 18.5 07049-02430 07049-02734 22.5 00-200 PC27MR-3, PC30MR-3, PC35MR-3... -
Page 38: Cooling System
If any part is loosened or damaged, retighten or repair it. Fuel system Check the piping for damage, the mounting bolts and nuts for looseness, and the joints for fuel leakage. If any part is loosened or damaged, retighten or repair it. PC27MR-3, PC30MR-3, PC35MR-3 00-200... - Page 39 If any bolt or nut is loosened, retighten it. Checking muffler function Check the muffler for abnormal sound and sound different from that of a new muffler. If any abnormal sound is heard, repair the muffler, referring to “Troubleshooting” and “Disassembly and assembly”. 00-200 PC27MR-3, PC30MR-3, PC35MR-3...
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Page 40: Method Of Disassembling And Connecting Push-Pull Type Coupler
(Fig. 5) a When the hose is pulled back, the rubber cap portion moves toward the hose about 3.5 mm. This does not indicate abnormality, however. PC27MR-3, PC30MR-3, PC35MR-3 00-200... - Page 41 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com...