Hitachi ZX850-3 and ZX870H-3 Excavator Service Manual

The manual is applicable for the Hitachi Excavator Model:

• ZX850-3
• ZX850LC-3
• ZX870H-3
• ZX870LCH-3

Format: PDF
Language: English
Service Manual consists of the following:

For Model ZX850-3, ZX850LC-3, ZX870H-3, ZX870LCH-3 as mentioned above:

Service Manual (Troubleshooting) : Vol. No.TO1JB-E (558 Pages)
Service Manual (Operation) : Vol. No.TT1JB-E (340 Pages)
Workshop Manual : Vol. No.W1JB-E (554 Pages)
Operators Manual: 366 Pages
Parts Catalog: 451 Pages & 148 Pages

Circuit Diagram: 31 Pages

SI Units (International System of Units) are used in those manual.

Manual guide composition

Hitachi Zaxis ZX850-3, ZX850LC-3, ZX870H-3 and ZX870LCH-3 service manual consists of the Operating, Troubleshooting and the Workshop Manual.

• Information included in the Service Manual: Technical information needed for redelivery and delivery, operation and activation of all devices and systems, operational performance tests, and troubleshooting procedures.
• Information included in the Workshop Manual: Technical information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, and removal / installation and assemble / disassemble procedures.

To avoid injury and damage refer to the service manual and be sure to use appropriate lifting techniques and equipment when lifting heavy parts.

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EXTRACT FROM THE MANUAL ON HOW TO REMOVE AND INSTALL CYLINDER
Preparation
1. Park the machine on a solid, level surface. Fully retract the bucket and arm cylinders and lower the front attachment onto the ground.
2. Stop the engine. Operate the control lever several time with the pilot shut-off lever in the UNLOCK position and release any pressure in the circuit.

NOTE: The accumulator is equipped for the pilot circuit.
After the engine stops, when the control lever is operated several time with the pilot shut-off lever in the UNLOCK position, any pressure can be released in the circuit.

3. Release any pressure in the front attachment pipe. (Refer to the HYDRAULIC CIRCUIT PRESSURE RELEASE PROCEDURE on W4-1-1.)
4. Release the pressure in the hydraulic oil tank. (Refer to BLEED AIR FROM HYDRAULIC OIL TANK on W1-4-1.)