Complete workshop & service manual with electrical wiring diagrams for Komatsu Hydraulic Excavator PC300-3, PC300LC-3, PC300-5, PC300-5 Mighty, PC300HD-5, PC300LC-5, PC300LC-5K (Mighty), PC308USLC-3, PC308USLC-3E0, PC360LC-3, PC400-5 (Mighty), PC400HD-5, PC400LC-5 (Mighty). It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Komatsu Hydraulic Excavator PC300-3, PC300LC-3, PC300-5, PC300-5 Mighty, PC300HD-5, PC300LC-5, PC300LC-5K (Mighty), PC308USLC-3, PC308USLC-3E0, PC360LC-3, PC400-5 (Mighty), PC400HD-5, PC400LC-5 (Mighty) service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

FILELIST:
CEBM207041 - Excavators PC300LC-5 with KDC 614TA & PC400LC-5 with LTA-10C Engine Shop Manual.pdf
CEBM207077 - Hydraulic Excavator PC300-5 (Mighty), PC300LC-5(K) (Mighty), PC300HD-5, PC300LC-5 & PC400-5 (Mighty), PC400LC-5 (Mighty), PC400HD-5 Shop Manual.pdf
NJPT007900 - Hydraulic Excavator PC308USLC-3 Operation & Maintenance Manual_Parts Book.pdf
SEBM033101 - Hydraulic Excavator PC308USLC-3 Shop Manual.pdf
SEBM02070308 - Hydraulic Excavator PC300-3, PC300LC-3, PC360LC-3 Shop Manual.pdf
SEN00964-08 - Hydraulic Excavator PC308USLC-3E0 Shop Manual.pdf
TEN00114-00 - Hydraulic Excavator GALEO PC308USLC-3 Operation & Maintenance Manual.pdf
TEN00145-04 - Hydraulic Excavator PC308USLC-3E0 Operation & Maintenance Manual.pdf
TEN00501-00 - Hydraulic Excavator PC308USLC-3E0 Operation & Maintenance Manual.pdf

EXCERPT:
CONTENTS
01 GENERAL............. 01-1
10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD.... 10-1
20 TESTING AND ADJUSTING............ 20-1
30 DISASSEMBLY AND ASSEMBLY ............. 30-1
90 OTHERS....... 90-1
...
TROUBLESHOOTING
DETAILS OF TROUBLESHOOTING AND TROUBLESHOOTING PROCEDURE
• Governor control system
1. Check input signal
1) Check fuel control dial input voltage
i) Set to the monitoring mode, and display monitoring code [30].
ii) Measure the voltage when the fuel control dial is turned from low idling to high idling.
a Voltage: 0.25 – 4.75 V
2) Check fuel control dial input voltage
i) Set to the monitoring mode, and display monitoring code [31].
ii) Measure the potentiometer voltage when the fuel control dial is turned from low idling to high idling.
a Voltage: 0.5 – 4.2 V (Note: When auto-deceleration is OFF)
2. Check output signal
1) Check governor motor drive current
i) Set to the monitoring mode, and display monitoring codes [33] and [34].
a Code [33] is the A phase and code [34] is the B phase.
ii) Measure the governor motor drive current when the fuel control dial is turned in the engine
speed acceleration direction and deceleration direction.
a Current: 700 ± 70 (mA)
2) Measure battery relay drive (output) voltage
i) Set to the monitoring mode, and display monitoring code [35].
ii) Measure the battery relay drive (output) voltage when the starting switch is turned from ON to OFF.
or
iii) Set to the monitoring mode, and display monitoring code [37].
iv) Check that bit (1) lights up when the starting switch is turned from ON to OFF.
...