Description

Hitachi Sumitomo ZX210W-3, ZX220W-3 2007 Workshop Manual

If you have ever spent half a day chasing a hydraulic leak or snapped a bolt because the spec in some aftermarket PDF was off by 10 ft-lbs, you know the cost of bad documentation. This is the factory workshop manual for the Hitachi Sumitomo ZX210W-3 and ZX220W-3 excavators, printed in 2007. It has 596 pages of the actual procedures Hitachi sends to their own dealers. No guesswork.

Tightening Torque Specification: Why You Need the Factory Chart

Group 2 under Section 1 covers the Tightening Torque Specification and includes a full torque chart. Aftermarket manuals often round values or skip the piping joint specs. Page 26 (in the original pagination) lists every fastener from M6 to M30 with the exact ft-lbs required. I have seen shops reuse bolts because they didn’t know the yield point – this manual tells you when to replace. Do not rely on a generic chart printed off the internet.

Pump Device Disassembly and Assembly Procedures

Group 4 in Section 2 walks through removal, disassembly, and assembly of the pump device. It covers the regulator disassembly/assembly and the structure of the pilot pump. The manual gives you the order of shims and the clearances you need to measure. If you are rebuilding a pump, you need the factory sequence for the valve plate and barrel. Skip one step and you will have cavitation on startup.

Control Valve: 4-Spool vs 5-Spool Sides

Group 5 splits the control valve into two separate procedures: one for the 4-spool side, one for the 5-spool side. Each has its own removal, disassembly, and assembly instructions. The manual also details the housing disassembly and the positioning control valve. I have seen a tech mix up the spool clearance specs between the two – that mistake costs you a sticky valve and a blown O-ring. The factory page numbers for these groups are clearly marked so you don’t flip back and forth.

Swing Device Maintenance Standards and Dampener Valve Structure

Group 6 covers the swing device completely: removal, disassembly, assembly, and the swing motor plus the dampener valve structure. There is a dedicated Maintenance Standard table with wear limits for the swing gear and bearings. Page numbers in the manual reference these standards directly. Without this table, you are guessing whether that 0.010″ backlash is acceptable. It is not.

Undercarriage Transmission and Axle (Section 3)

Section 3 goes into the undercarriage – swing bearing, travel motor, center joint, transmission, and axle. Group 4 covers the transmission removal, disassembly, and assembly in full. For general principles on wheeled machinery drivetrains, refer to the Manual Transmission article on Wikipedia. But for the exact gear lash and bearing preload on this Hitachi, you need the factory manual. The axle removal procedure (Group 5) specifies puller tool numbers that aftermarket guides leave out.

Safety Alert Symbols and Headline Notations – Not Just Decoration

Page 4 of the manual explains the safety alert symbol and signal words. The manual uses a triangle with an exclamation mark to warn about personal injury. It also calls out component weights – for example, the counterweight removal group tells you the weight so you can choose the right sling. Ignoring these warnings gets people hurt. The manual is written for experienced technicians, but it tells you exactly which steps require a second person or a hoist.

That is the difference between this and a third-party reprint.

Related Manuals You Might Need

• Hitachi Sumitomo SH330 SH330LC 350HD-3B 2006 Workshop Manual – Factory Specs
• Hitachi Sumitomo SCX1500-2, SCX1200-2 Workshop Manual
• Hitachi Sumitomo SCX1500-2, SCX1200-2 Workshop Manual – 506 Pages

For a deeper understanding of how transmissions work off the machine, see the Manual Transmission overview.

Frequently Asked Questions

Does this manual include torque specs for all bolts?

Yes. Section 1 Group 2 has a full torque chart and piping joint specs. Page 26 lists every standard fastener torque.

Is this manual for both the ZX210W-3 and ZX220W-3?

Yes. The manual covers both models. The Table of Contents and page headers reference both model numbers throughout.

How many pages does the manual have?

596 pages. That includes all sections from introduction through undercarriage. Do not confuse this with the Troubleshooting or Technical Manual – those are separate volumes. This is the Workshop Manual (Part No. WCJB-E-00).

What safety information is included?

The manual has a dedicated Safety section at the beginning, plus safety alert symbols throughout. It also includes component weights in the removal procedures so you don’t drop a counterweight on your foot. The signal words – Danger, Warning, Caution – are used consistently with Hitachi’s standards.

If you want to avoid the parts cannon and get the job done with the right specs, access the Factory Manual from AutoRepairManuals.