KOMATSU PC450-6K PC450LC-6K HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:K30001 AND UP)
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KOMATSU PC450-6K PC450LC-6K HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:K30001 AND UP)
- This manual is written for use by the operator and/or the service technician and is designed to help these persons to become fully knowledgeable of the truck and all its systems in order to keep it operating safely and efficiently.
- All operators and maintenance personnel must read and understand the materials in this manual before operating the truck or performing maintenance and/or operational checks on the truck. All safety notices, warnings and cautions are to be understood and followed when operating or accomplishing repairs on the truck.
- The first section is an introduction to the manual and contains a table of contents to locate specific areas of interest. Other sections include Safety, Maintenance and Specifications.
- The illustrations used in this manual are TYPICAL of the component shown and may not be an exact reproduction of what is found on the truck.
- A product identification plate is located on the frame in front of the right side front wheel and designates the truck model number, product identification number (vehicle serial number), and maximum GVW (Gross Vehicle Weight) rating.
- The KOMATSU truck model designation consists of three numbers and one letter (i.e. 830E).
The three numbers represent the basic truck model.
The letter “M”, when present, designates a Mechanical drive system;
The letter “E”, when present, designates an Electrical wheel motor drive system. - The product identification number (vehicle serial number) contains information which will identify the original manufacturing bill of material for this unit. This complete number will be necessary for proper ordering of many service parts and/or warranty consideration
TABLE OF CONTENTS:
KOMATSU PC450-6K PC450LC-6K HYDRAULIC EXCAVATOR Operation & Maintenance Manual (SN:K30001 AND UP)
1 Foreword 0-1
2 Safety information 0-2
3 Introduction 0-4
4 Location of plates, table to enter serial No and distributor 0-5
SAFETY
6 General Precautions 1-2
7 Precautions during operation 1-8
7 1 Before starting engine 1-8
7 2 Operating machine 1-10
7 3 Transportation 1-15
7 4 Battery 1-16
7 5 Towing 1-17
7 6 Bucket with hook 1-18
8 Precautions for maintenance 1-21
8 1 Before carrying out maintenance 1-21
8 2 During maintenance 1-24
9 Position for attaching safety labels 1-28
OPERATION
10 General view
10 1 General view of machine 2-2
10 2 General view of controls and gauges 2-3
11 Explanation of components
11 1 Machine monitor 2-4
11 2 Switches 2-15
11 3 Control levers, pedals 2-19
11 4 Roof hatch 2-24
11 5 Front window 2-25
11 6 Door lock 2-27
11 7 Cap, cover with lock 2-28
11 8 Luggage box 2-29
11 9 Ashtray 2-29
11 10 Heater 2-29
11 11 Air conditioner 2-30
11 12 Car radio 2-33
11 13 Fuse 2-34
11 14 Fusible link 2-35
11 15 Controllers 2-35
11 16 Tool box 2-35
11 17 Refuelling pump 2-35
11 18 Handling the accumulator 2-36
12 Operation
12 1 Check before starting engine 2-38
12 2 Starting engine 2-48
12 3 Operations and checks after starting engine 2-51
12 4 Moving machine off 2-57
12 5 Steering machine 2-60
12 6 Stopping machine 2-62
12 7 Swinging 2-63
12 8 Operation of work equipment 2-64
12 9 Working mode selection 2-65
12 10 Prohibitions for operation 2-67
12 11 Precaution for operation 2-69
12 12 Precaution when travelling up or down hills 2-70
12 13 How to escape from mud 2-72
12 14 Work possible using hydraulic excavator 2-73
12 15 Replacement and inversion of bucket 2-74
12 16 Parking the machine 2-76
12 17 Check after finishing work 2-77
12 18 Stopping engine 2-78
12 19 Check after stopping engine 2-79
12 20 Locking 2-79
12 21 Overload warning device 2-79
13 Transportation
13 1 Loading, unloading work 2-80
13 2 Precautions for loading 2-82
13 3 Precautions for transportation 2-83
13 4 Lifting the machine 2-83
13 5 Procedure for increasing or reducing track frame gauge 2-84
14 Cold weather operation
14 1 Precaution for low temperature 2-85
14 2 Precautions after completion of work 2-86
14 3 After cold weather 2-86
15 Long-term storage
15 1 Before storage 2-87
15 2 During storage 2-88
15 3 After storage 2-88
15 4 Starting machine after long-term storage 2-88
16 Troubleshooting
16 1 Phenomena that are not failures 2-89
16 2 Method of towing machine 2-89
16 3 Using method for light-weight towing hole 2-89
16 4 Precautions on particular jobsites 2-90
16 5 If battery is discharged 2-90
16 6 Other trouble 2-94
17 Guides to maintenance 3-2
18 Outlines of service 3-5
18 1 Outline of oil, fuel, coolant 3-5
18 2 Outline of electric system 3-9
18 3 Outline of hydraulic system 3-10
19 Wear parts list 3-11
20 Use of fuel, coolant and lubricants according to ambient temperature 3-12
21 Standard tightening torques for bolts and nuts 3-16
21 1 Introduction of necessary tools 3-16
21 2 Torque list 3-17
22 Periodic replacement of safety critical parts 3-18
23 Maintenance schedule chart 3-20
23 1 Maintenance schedule chart 3-20
23 2 Maintenance interval when using hydraulic breaker 3-22
24 Service procedure 3-23
24 1 When required 3-24
24 2 Check before starting 3-45
24 3 Every 50 hours service 3-49
24 4 Every 100 hours service 3-51
24 5 Every 250 hours service 3-54
24 6 Every 500 hours service 3-63
24 7 Every 1000 hours service 3-65
24 8 Every 2000 hours service 3-72
24 9 Every 4000 hours 3-79
25 SPECIFICATIONS 4-2
25 1 Machine specifications 4-2
25 2 Explanation of lifting capacity chart 4-5
26 General Precautions 5-2
26 1 General precautions related to safety 5-2
26 2 Precautions when installing attachments 5-3
27 Handling bucket with hook 5-4
27 1 Checking for damage to bucket with hook 5-4
27 2 Prohibited operations 5-4
27 3 Precautions during operation 5-4
28 Machine ready for attachments 5-5
28 1 Explanation of components 5-5
28 2 Hydraulic circuit 5-7
28 3 Attachment mounting / dismounting procedure 5-9
28 4 Operation 5-11
28 5 Long-term storage 5-12
28 6 Specifications 5-12
29 Introduction of attachments 5-13
29 1 Specification, use 5-13
29 2 Attachment installing combination table 5-14
29 3 Selection of track shoes 5-15
29 4 Selection of bucket teeth 5-16
29 5 Handling trapezoidal bucket 5-17
29 6 Handling extension arm 5-18
30 Extending machine service life 5-19
30 1 Hydraulic breaker 5-19
30 2 Power ripper 5-22
30 3 Fork grab 5-23
30 4 Grapple bucket 5-24
30 5 Scrap grapple 5-25
30 6 Crusher & cutter 5-26
30 7 Hydraulic pile driver 5-27
30 8 Hydraulic excavator with multi-purpose crane 5-28
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