Description

Hitachi Sumitomo ZX160LC-3, ZX180LC-3, ZX180LCN-3 2008 Workshop Manual

You ever try to pull a pump on a ZX180LC-3 with a spec you found on a forum? Don’t. That’s the kind of shortcut that ends with a hydraulic leak and a four-figure parts bill. I’ve been wrenching on heavy iron for 28 years, and I can tell you right now: if you don’t have the factory numbers, you’re gambling. This Hitachi Sumitomo ZX160LC-3, ZX180LC-3, ZX180LCN-3 2008 Workshop Manual is the real deal — 528 pages of Hitachi Construction Machinery’s own documentation, printed in Europe in 2008.03. No aftermarket interpretation, no translated approximations. This is the binder that sat in the dealer’s service bay.

Section 1: General Safety and Torque Specifications

First thing in this book is the safety section — and I mean real safety, not the liability-padding kind. It covers proper jacking, blocking, and the mandatory personal protective equipment for disassembly and assembly. Then it gets into what you actually need: the torque table. Page 26 (in the “Затяжка резьбовых соединений” subsection) gives you the exact ft-lb values for every threaded fastener on the machine. No more guessing whether a hydraulic line fitting needs 85 or 110 ft-lb. The factory says 95. That’s what you use. The manual also spells out which bolts need to be replaced at every teardown — something the aftermarket manuals conveniently leave out.

Pump Assembly: Disassembly and Reassembly Procedures

Section 2, Subsection 4 covers the pump assembly in full. You get the removal sequence, then the teardown of the regulator and the solenoid valve. The rebuild specs for the gear pump — clearances, spring heights, shim selections — are all listed under “Ремонтные нормали”. If you’ve ever had a machine that won’t build pilot pressure because the pump control spool is scored, this is where you’ll find the fix. The manual also details the bleed procedure for the hydraulic tank (Subsection 4 under General). Air in the tank will destroy your pump in minutes. The factory steps? Drain the tank, crack the return line, cycle the swing brake. That’s it.

What Does the Swing Mechanism Chapter Cover?

Section 2, Subsection 6 is the swing mechanism — swing motor, planetary gearbox, and the brake valve. This is the section that pays for itself the first time you have to pull a stuck swing motor. The manual shows the order of shims for the brake piston (page 73 if I recall correctly) and the correct way to reassemble the hydraulic motor without pinching the piston seals. I’ve seen three-day jobs turn into one-day jobs because a tech had the factory clearance chart in front of him. You also get the torque sequence for the swing gear housing bolts — cross-pattern, 180 ft-lb final pass. Miss that step and you’ll be chasing leaks.

7 Systems Covered in the Undercarriage Section

Section 3 covers the travel gear, central joint, track tensioner, idler wheels, carrier rollers, track adjuster, and the support rollers. That’s seven subsystems, each with its own disassembly, inspection, and assembly procedure. The hydraulic motor teardown for the travel drive is in Subsection 2 — includes the brake valve rebuild and the seal kit part numbers. The manual also gives you the grease volume for the track tensioner (0.5 liters per side) and the correct way to release it without blowing the seal. Use a forum hack there and you’ll be buying a new idler wheel.

Follow the Factory Bleed Procedure for the Hydraulic Tank

You’d be surprised how many shops skip this. The manual has a dedicated subsection (Раздел 1, Подраздел 4) on air bleeding from the hydraulic tank. It’s not just “fill and run.” It tells you to crack the return line at the tank, start the engine at idle, and wait for a solid stream of oil with no bubbles. That’s the only way to prevent cavitation damage. I’ve had machines come in with wiped-out pumps because someone thought they could just top off and go. This manual keeps you honest.

Source Validity: Why You Need the OEM Print

This is Hitachi Sumitomo’s own document, part number W1T1-E-00. The complementary Technical Manuals (Troubleshooting and Operational Principle) are separate volumes, but this Workshop Manual is the one you want on the bench. Aftermarket manuals often reprint the torque tables wrong — I’ve seen a spec that was 20 ft-lb off on a control valve bolt. That’s not a mistake; that’s a lawsuit waiting to happen. This manual has the factory paint codes, the correct fluid capacities, and the periodic replacement intervals for seals and hoses. If you’re working on a ZX160LC-3, ZX180LC-3, or ZX180LCN-3, this is the only manual you should trust.

If you need other Hitachi Sumitomo factory documentation, check the Hitachi Sumitomo SH330 SH330LC 350HD-3B 2006 Workshop Manual – Factory Specs or the Hitachi Sumitomo SCX1500-2, SCX1200-2 Workshop Manual — both are from the same OEM source. The Hitachi Sumitomo SCX1500-2, SCX1200-2 Workshop Manual – 506 Pages is also available if you handle those big lattice-boom crawlers.

For reference on general hydraulic theory, you can look up Manual Transmission on Wikipedia, but it’s not going to help you rebuild a pump. Same goes for Manual Transmission — don’t confuse gearbox design with excavator drivetrains.

Frequently Asked Questions

Does this manual cover the engine?

Yes. Section 2, Subsection 11 covers engine removal and installation. Engine overhaul procedures are typically in a separate engine manual, but the workshop manual includes all torque specs, mounting hardware, and alignment steps.

How are the torque specs presented?

The torque table in Subsection 2 lists values in Nm followed by ft-lb equivalents. It covers all threaded connections, including flanges, banjo fittings, and bolts. The manual also specifies the tightening angle for critical fasteners like the swing gear bolts.

You’ve got the part number, the year, the page count. Don’t waste time chasing online rumors. Access the Factory Manual and keep it open on your bench.