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Hitachi EX270 Excavator Factory Service & Shop Manual

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US Dollar: $29.99

Complete workshop & service manual with electrical wiring diagrams for Hitachi EX270 Excavator. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Hitachi EX270 Excavator 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:
EM15JNA21 - Hitachi EX270LC-5 Excavator Operator's Manual.pdf
EM15815 - Hitachi EX270LC, EX270LC-5 Excavator Operator's Manual.pdf
KM10200 - Hitachi EX270 Excavator Technical Manual (Service & Repair).pdf

EXCERPT:
TRAVEL MOTOR
When oil pressure exceeds the setting pressure of the overload relief valve, high pressure oil is relieved to the lower pressure side to prevent overloading of the motor.
High pressure caused by inertia force when the machine stops is also relieved by the relief valve.
The reducing valve supplies oil pressure to release the parking brake.
Primary pressure is supplied from port (BV) or port (AV) depending on travelling direction. Brake release pressure is controlled by the spring force of the reducing valve.
When the control lever is moved to the neutral position, release pressure is drained to the motor housing. To apply the parking brake after the motor stops, release pressure drains slowly through small orifice in the valve spool.
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