Hitachi Sumitomo 200-3, 210H-3, 225US-3, 240-3, 270-3 Workshop Manual

If you’re tearing down a pump on a Hitachi Sumitomo 200-3, 210H-3, 225US-3, 240-3, 270-3 Workshop Manual machine, you need more than a video or a guess. I’ve seen guys snap bolts because they used a generic spec. This factory manual gives you the exact tightening torque for each class. No aftermarket approximations.

Torque Specs and Tightening Procedures

Section 1 of the manual covers tightening torque specifications for all three classes: ZX200-3, ZX225US-3 class (including 225USR-3), and ZX240-3 / ZX270-3 class. Each has its own table with bolt sizes and ft-lb values. There is a general torque chart and a section on piping joint torques. If you need the spec for the swing motor mounting bolts on a 270-3, it’s in there. Using the wrong torque on a 225US-3 swing bearing will cost you a reload. Trust the factory numbers.

Disassembly and Assembly of Pump Device

Pages 1 and 3 of the manual list the models covered and the manual composition. But the real work starts in Section 2. The pump device removal and installation is broken out by class: ZX200-3 class, 225US-3 class, and 225USR-3 class. Then you get the full disassembly and assembly steps for the pump device, regulator, and solenoid valve. Each step tells you the order of bolt removal and the seal replacement intervals. No skipping steps.

Does This Manual Cover the 225US-3 and 225USR-3 Classes?

Yes. The 225US-3 class includes the 225USLC-3 and the 225USR-3 class includes the 225USRLC-3, 225USRK-3, and 225USRLCK-3. The manual has separate procedures for cab removal, swing device removal, and control valve installation for these models. The torque specs are in a dedicated table on the tightening page. Do not mix them up with the 200-3 class specs.

3 Classes of Torque Specifications Listed

The manual lists three distinct torque specification groups: one for ZX200-3 class, one for ZX225US-3 class, and one for ZX240-3 / ZX270-3 class. Each group has its own table. The general torque chart covers common fasteners. If you are working on a 210H-3 (which falls under ZX200-3 class), use the ZX200-3 class table. That is how the factory separates them.

Source Authenticity: OEM vs Aftermarket

Aftermarket manuals often reprint data from multiple sources with errors. This is a direct scan of the Hitachi Sumitomo factory Workshop Manual, part number W1V1-E-01. The introduction states it is written for an experienced technician. The safety alert symbols and signal words are factory original. I have seen aftermarket manuals get the swing motor assembly sequence wrong. Not here.

The manual covers undercarriage work too: swing bearing removal/assembly, travel device and travel motor disassembly. Section 3 has the weight lists for the travel device and swing bearing. If you need to bleed air from the hydraulic oil tank, the procedure is in Section 1.

Get the torque right or buy new bolts.

Frequently Asked Questions

Is this the same as a service manual?

Yes. Workshop manual is the factory service manual.

Does it cover the 210H-3 model?

Yes, the 210H-3 is listed under the 200-3 class on page 1.

What torque specs are included?

The manual includes tightening torque specifications for three classes: ZX200-3, ZX225US-3/225USR-3, and ZX240-3/ZX270-3. Each class has its own table with bolt sizes and torque values in ft-lbs. Also includes a general torque chart and piping joint torques. The periodic replacement parts section specifies which bolts to replace and their torque requirements during reassembly. This is the factory data, not aftermarket guesses. If you need the torque for the control valve mounting bolts on a 240-3, it is listed. Do not use a generic chart from the internet.

Can I use this for a 270-3?

Yes, the 270-3 class is covered. See the torque specs and swing motor disassembly specific to that model.

Additional References and Related Manuals

The manual itself references other factory documents like the Engine Manual and Manual Transmission literature. For specialized troubleshooting, the separate Technical Manual (Troubleshooting) is needed. Check these related products:

• HITACHI ZAXIS 200-3 225US-3 240-3 270-3 Workshop Manual
• HITACHI 200-3 Series Hydraulic Excavator Technical Manual
• Hitachi ZAXIS 200-3 Series Troubleshooting Manual
• Manual Transmission

If you are working on one of these machines, do not rely on guesswork. Download the Factory Manual from AutoRepairManuals now.