Komatsu 4D105-3, S4D105-3 Diesel Engine Service Manual

Komatsu 4D105-3, S4D105-3 Diesel Engine Service Manual

$25.00

Publication: SEBE61300300
Format: PDF
Language: English

Komatsu 4D105-3, S4D105-3 Diesel Engine Service Manual Engine Service Manual – 252 Pages

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Komatsu 4D105-3, S4D105-3 Diesel Engine Service Manual

Komatsu Engines
Publication: SEBE61300300
Format: PDF
Language: English

Komatsu 4D105-3, S4D105-3 Diesel Engine Service Manual Engine Service Manual – 252 Pages

Engine Applicable machine, Serial number

APPLICABLE MACHINE MODEL ENGINE MODEL
KOMATSU DESCRIPTION
D31A-16 4D105-3C
D31P-16 4D105-3C
D31S-16 4D105-3C
D31Q-16 4D105-3C
GD22AC-1A 4D105-3D
GD28AC-1A 4D105-3G
EC50V-1 4D105-3L
EC50VS-1 4D105-3L
EC75Z-1 4D105-3K
EC75ZS-1 4D105-3K
EC45-1 4D105-3H
EC45S-1 4D105-3J
CD40-1 4D105-3
CD40C-1 4D105-3
WD40-1 4D105-3
BC100-1 4D105-3
D40A-1 S4D105-3B
D40P-1 S4D105-3B
D40F-1A S4D105-3B
D45A-1 S4D105-3C
D45P-1 S4D105-3C
D45S-1 S4D105-3D
EG55-1 S4D105-3H
EG55S-1 S4D105-3J

 

Table of Content of the Komatsu 4D88E, 4D98E, 4D106 Engine Manual:

01 GENERAL ……………………………………………….. 01-001
11 STRUCTURE AND FUNCTION …………………….. 11-001
12 TESTING AND ADJUSTING ……………………….. 12-001
13 DISASSEMBLY AND ASSEMBLY ………………… 13-001
14 MAINTENANCE STANDARD ………………………. 14-001
15 REPAIR AND REPLACEMENT ……………………… 1s-001

 

GENERAL DESCRIPTION
1. Structure of fuel system
• The fuel system consists mainly of the fuel tank, feed pump, fuel filter, fuel injection pump, fuel injection nozzles and governor (built as one unit with the fuel injection pump).
• In addition 40105, S4O105 supply fuel to thermostart for easy starting.
2. Circulation of fuel
1) Fuel is delivered from the fuel tank to the injection pump through the fuel filter by the feed pump driven by ·the fuel injection pump cam. During the course from the tank to the injection pump, the fuel is cleaned of rough dirt through the gauge filter at the inlet to the feed pump. Then, complete dust removal and water separation from the oil are accomplished through the filter.
2) Fuel entering the injection pump is pressurized by the pump plunger to that required for injection and injected into each cylinder through the injection nozzle in the quantity required, meeting the injection timing for the cylinder.
3) The excess fuel at the nozzles or in the thermostart tank ( 40105, S4O105) in the fuel circuit flows back to the fuel tank through the spill pipes.

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