Complete workshop & service manual with electrical wiring diagrams for Komatsu Dozer Shovel D57S-1. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Komatsu Dozer Shovel D57S-1 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.

SEAM135A01 - Dozer Shovel D57S-1 Operation & Maintenance Manual (SN6501&up).pdf
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SEBM0135A05 - Dozer Shovel D57S-1 Shop Manual (SN6501&up).pdf

EXCERPT:
CONTENTS
10 ENGINE
12 TESTING AND ADJUSTING ..... 1 2-1
13 DISASSEMBLY AND ASSEMBLY ..... 1 3-1
20 POWER TRAIN
21 STRUCTURE AND FUNCTION ..... 21-1
22 TESTING AND ADJUSTING ..... 22-1
23 DISASSEMBLY AND ASSEMBLY ..... 23-1
24 MAINTENANCE STANDARD 24-1
30 UNDERCARRIAGE
31 STRUCTURE AND FUNCTION ..... 31-1
33 DISASSEMBLY AND ASSEMBLY ..... 33-1
34 MAINTENANCE STANDARD ............ 34-1
60 HYDRAULIC SYSTEM
61 STRUCTURE AND FUNCTION 61-1
62 TESTING AND ADJUSTING 62-1
63 DISASSEMBLY AND ASSEMBLY 63-1
64 MAINTENANCE STANDARD 64-1
70 WORK EQUIPMENT
71 STRUCTURE AND FUNCTION ..... 71 -1
73 DISASSEMBLY AND ASSEMBLY 73-1
74 MAINTENANCE STANDARD ...... 74-1
80 ELECTRICAL SYSTEM
81 STRUCTURE AND FUNCTION ..... 81-1
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STRUCTURE AND FUNCTION
TOROFLOW TRANSMISSION
POWER TRAIN
1st speed-Forward
No. 1 and No. 5 clutches are engaged, No. 1 ring gear is hold and No. 5 gear is connected directly to output shaft.
The No. 1 clutch is engaged to hold the No. 1 ring gear stationary and the No. 5 clutch is engaged to connect to the output shaft. Rotation of the input shaft is transmitted from the No. 1 sun gear to the No. 1 planetary gears and the resulting rotation of the No. 1 carrier is transmitted to the No. 3 carrier. Here, driving power is delivered into two passages: one passage transmits rotation of the No. 3 carrier to the No. 3 ring gear, the No. 4 carrier and the No. 5 shaft; while the other passage transmits the rotation to the No. 3 planetary gears and the No. 3 sun gear which is fixed to the No. 5 shaft. Then finally to output shaft.
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