Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Komatsu Bulldozer D275A-2, D275A-5, D275A-5E0, D275A-5R, D275AX-5. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your Komatsu Bulldozer D275A-2, D275A-5, D275A-5E0, D275A-5R, D275AX-5 like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.

This manual for Komatsu Bulldozer D275A-2, D275A-5, D275A-5E0, D275A-5R, D275AX-5 is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. 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. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.

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EXCERPT:

30 Testing and adjusting

Handling of optional devices 1
- This machine has connectors to install optional devices in its fuse box. When installing any
optional device, receive the necessary signals and power through those connectors without modifying the wiring harness.
1. Taking out ACC signal of starting switch
If the ACC signal (ON signal) of the starting switch is necessary to an optional device such as the turbocharger timer, take it out through the following connector pin.
- Pin (B) of CN-ESD (3-pole heavy duty wire connector)
- A 20-A fuse is installed on the upstream side of this connector pin.
2. Inputting engine stop signal
When it is required to stop the engine with an optional engine emergency stop function etc. while the starting switch is in the ON position, utilize the circuit of the following connectors and pins.
- Pin (A) of CN-ESD (3-pole heavy duty wire connector)
- Before using, be sure to notify the Service Section.
3. Inputting engine low-idle command
When it is required to keep the engine speed at low idle with an optional engine protection function etc., utilize the circuit of the following connectors and pins.
- Pin (C) of CN-ESD (3-pole heavy duty wire connector)
- Before using, be sure to notify the Service Section.
4. Taking out C signal of starting switch
If the C signal (starting signal) of the starting switch is necessary to an optional device such as the pre-lubricator, take it out through the following connector pin.
- CN-PRS (2-pole heavy duty wire connector)
- Remove the connector installed when the machine is shipped and connect pin (1) to the starting signal to be output finally by the optional device and connect pin (2) to the starting switch signal to be input to the optional device.
5. Taking out external power source
If an external power source is necessary, take it through the following connectors.
- CN-800, CN-810 (Plug connectors)
- CN-801, CN-811 (Plug connectors)
- A 20-A fuse is installed on the upstream side of each of these connectors.
- CN-800 and CN-801 are prepared in the fuse box and CN-810 and CN-811 are prepared on the outside of the floor.
...