Komatsu PC160LC-7K, PC180LC-7K Excavator Service Manual Workshop Guide

Manual Included: Shop Manual: 676 pages Specifications: Brand: Komatsu Model: PC160LC-7K, PC180LC-7K Serial Number: K40001 and up Type: Excavator Manuals: Shop Manual Publication Number: UEBM002200 Language: English Format: PDF Description Table of Contents 01 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1 10 STRUCTURE AND FUNCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1 20 TESTING, ADJUSTING AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1 30 DISASSEMBLY AND ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1 90 OTHER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90-1 1. Composition of shop manual This shop manual contains the necessary technical information for services performed in a workshop. For ease of understanding, the manual is divided into the following sections. 00. FOREWORD This section explains the safety and basic information. 01. GENERAL This section explains the specifications of the machine for the Excavator. 10. STRUCTURE AND FUNCTION, MAINTENANCE STANDARD This section explains the structure, function, and maintenance standard values of each component. The structure and function sub-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. The maintenance standard sub-section explains the criteria and remedies for disassembly and service. 20. TESTING AND ADJUSTING Standard value table This section explains the standard values for new machine and judgement criteria for testing, adjusting, and troubleshooting. This standard value table is used to check the standard values in testing and adjusting and to judge parts in troubleshooting. Testing and adjusting This section explains measuring instruments and measuring methods for testing and adjusting, and method of adjusting each part. The standard values and judgement criteria for testing and adjusting are explained in Testing and adjusting. Troubleshooting This section explains how to find out failed parts and how to repair them. The troubleshooting is divided by failure modes. The S mode of the troubleshooting related to the engine may be also explained in the Chassis volume and Engine volume. In this case, see the Chassis volume. 30. DISASSEMBLY AND ASSEMBLY Excavator This section explains the special tools and procedures for removing, installing, disassembling, and assembling each component, as well as precautions for them. In addition, tightening torque and quantity and weight of coating material, oil, grease, and coolant necessary for the work are also explain. 90. OTHERS (chassis volume)/Repair and replacement of parts (engine volume) • Chassis volume This section gives hydraulic circuit diagrams and electrical circuit diagrams. • Engine volume This section explains the method of reproducing, repairing, and replacing parts. INSPECTION AND ADJUSTMENT OF TRACK SHOE TENSION 1. Travel the machine forward by the length of track on ground, keeping the engine at low idling, and stop the machine slowly. 2. Place straight bar [1] on the track shoe between the idler and the 1st carrier roller. L beam is recommended for bar [1], because of its deflection-free nature. 3. Measure max. clearance a between bar [1] and the track shoe. • Max. standard clearance a: 10 30 mm Adjustment If the track shoe tension is not proper, adjust it in the following manner. 1. When the tension is too strong Discharge grease by loosening valve (1). Do not loosen valve (1) by more than one turn, because grease will spurt out due to its internal high pressure. 2. When the tension is too weak Add grease through valve (1). If the normal track shoe tension is not restored even after greasing, move the machine slowly back and forth.