Description

Hitachi Sumitomo 200, 210, 200LC, 210H, 210LCH Troubleshooting Manual

If you are turning wrenches on a Hitachi Sumitomo 200, 210, 200LC, 210H, or 210LCH excavator and the machine is throwing codes, acting up, or bleeding oil out of somewhere you can’t find, the manual you want is not some aftermarket reprint cobbled together from scanned highlights. The Hitachi Sumitomo 200, 210, 200LC, 210H, 210LCH Troubleshooting Manual you buy from AutoRepairManuals is a direct OEM file—416 pages of factory-written diagnostics that start at symptom and end at a test point. I have watched too many people waste a day guessing at a pilot pressure problem because they didn’t have the correct screw-turn chart. This manual has that chart. Page references inside the PDF are live, the torque tables are from Hitachi’s engineering group, and the pressure adjustment data matches what the machine left the factory with.

Adjusting Screw Turns and Pressure Settings

Buried in the T04-05 section of this manual you get the exact relationship between adjusting screw turns and system pressure. One-quarter turn on the screw gives you 2.9 MPa (430 psi). Half a turn? 5.9 MPa (850 psi). Three-quarter turn lands you at 8.8 MPa (1280 psi), and a full turn hits 11.8 MPa (1710 psi). This is not a ballpark figure—it’s the actual table used by Hitachi Sumitomo technicians. If you have ever had a main relief valve chatter because you guessed at the turns, you already know why this matters. The manual prints these values in MPa, kgf/cm², and psi so you don’t have to convert on the fly.

What the Troubleshooting Manual Covers (Real Chapter Names)

The manual is broken into three volumes within the set—this is the Technical Manual (Troubleshooting), Volume No. TT178E. The Service Manual (Manual No. KM-178E) also includes the Operational Principle volume and the Workshop Manual, but what you are buying here is the troubleshooting half. It covers the entire 200 class (200·200LC·210H·210LCH·210·210LC·210N), plus 225 class, 230 class, and 270 class excavators. For the 200, 210, 200LC, 210H, and 210LCH, every diagnostic flow chart and performance test is included. Need the charge pressure check procedure? It’s there. The hydraulic pump cut-off adjustment? Section T-4 lays it out. No reprints, no missing pages—416 pages of factory PDF.

3 Reasons You Pay for OEM, Not Aftermarket

First reason: wiring diagrams. Aftermarket manuals redraw them from memory and get terminal numbers wrong. Second: torque specs. I have seen a third-party manual list 250 ft-lb for a swing motor housing bolt that Hitachi calls for 310 ft-lb—you strip the threads, you eat the cost. Third: the adjusting screw table I mentioned above. That table came from Hitachi’s test bench, not from someone guessing with a pressure gauge. This manual is an original OEM publication. You can cross-reference it with the Operator’s Manual and Parts Catalog as stated on page 3 (IN-01).

ESX Override: When the Control Unit Locks You Out

If you have ever hit a condition where the machine’s controller refuses to let the engine start or won’t allow hydraulic function movement, you are looking at an ESX override scenario. The troubleshooting manual walks you through the logic side—sensor checks, CAN bus continuity, and the override procedure. The 210H and 210LCH models share the same ESX controller as the 200 series. Do not start throwing parts at the pump until you verify the electronic input. Section T-4-5 has the voltage checks and the connector pinout table.

Fuel System Diagnostics: Starting the Right Way

Fuel delivery issues on these machines often get misdiagnosed as injection pump failure when it is a supply pump or a check valve. The manual isolates the high-pressure fuel system with a step sequence: low-pressure fuel flow test, injection timing verification, and injector return flow measurement. You don’t need a scan tool—you need a graduated cylinder and the spec sheet on page T-3-12. Over 90% of the no-start complaints on the 200 class trace back to air ingestion. The troubleshooting tree tells you where to put the clear hose first.

Does this manual include the full wiring diagram for the 210LCH?

Yes. The electrical schematics are part of the troubleshooting manual, covering all models.

Can I use this manual to rebuild the swing gearbox on a 210H excavator?

No. Rebuild procedures (disassembly, assembly, tolerances, torque sequences for internal components) belong in the Workshop Manual (Volume No. W178E). This Troubleshooting Manual is for diagnosing performance faults—low swing speed, drift, abnormal noise—not for mechanical overhaul. You need the Workshop Manual section if you plan to split the housings. The two manuals are meant to be used together. If you own a 210H and you are just trying to find out why the swing brake won’t release, start here. If you already know the brake plates are burnt, order the Workshop Manual.

Related Manuals for the ZAXIS Series

• HITACHI ZAXIS 200/210/225/240/270-3 Technical Manual – Section: Section 5″>HITACHI ZAXIS 200/210/225/240/270-3 Technical Manual – Section 5
• HITACHI ZAXIS Excavator Technical Manual”>HITACHI ZAXIS Excavator Technical Manual
• Hitachi Sumitomo SCX1500-2 SCX1200-2 2005 Troubleshooting Manual | 533 Pages”>Hitachi Sumitomo SCX1500-2 SCX1200-2 2005 Troubleshooting Manual | 533 Pages

If you are tearing into a Hitachi Sumitomo 200, 210, 200LC, 210H, or 210LCH and you want the diagnosis to be right the first time, Access the Factory Manual from AutoRepairManuals. The 416-page PDF lands on your screen—no shipping, no waiting. You get the pressure adjustment table, the flow charts, and the wiring that Hitachi engineers signed off on. That is the only documentation I trust on the bench.