Description

New Holland Kobelco 7055, 7065 Workshop Manual – 557 Pages of Factory Specs

I’ve watched guys turn a $2,000 hydraulic pump into scrap because they trusted the wrong torque chart. Others lose an afternoon chasing a pressure reading that only makes sense if you’ve got the factory test procedure. If you’re holding a wrench on a New Holland Kobelco 7055, 7065 Workshop Manual is the difference between a repair that lasts and one that leaks. This isn’t a reprint of some third-party summary – it’s the same 557-page document Kobelco sent to their dealers. You get the specs the engineers wrote, not what some publisher thinks is close enough.

Hydraulic System – 7 Chapters of Dedicated Coverage

The manual splits the hydraulics into seven separate system chapters: Hydraulic System (chapter 4), Hoist System (5), Boom Hoist System (6), Swing System (7), Propel System (8), Outrigger System (11), and the control valves. Each chapter has its own component locations, disassembly steps, and test pressures. Need the charge pressure for the propel motor? It’s in chapter 8, not buried somewhere vague. The book code S5GG0001E covers both the 7055 (serial GB-00002~) and 7065 (serial GG-00002~) – same platform, different dimensions for pins and bushings. You’ll see that in the Maintenance Standard tables on page 3, where the 7065 boom foot pin is 99.75 mm versus the 7055’s 86.75 mm. If you order the wrong bushing, you’re down a day.

What Torque Values Are Listed in This Manual?

Every fastener in the powertrain and hydraulic circuits has a specific torque specification. The General (4) section – Maintenance Standards Test Procedures – gives you the standard bolt torques for the machine. But the real value is the component-level specs: brake control valve (HF25-B5), counterbalance valve (KDC30MR), brake valve (RF2A), and all the hydraulic motors (axial piston, M series, MB series). Those torque values aren’t in a generic chart; they’re tied to the exact part numbers and thread grades. I’ve seen a counterbalance valve leak because a tech used the standard bolt torque instead of the lower valve-body spec. This manual keeps that from happening. Page 1 of the PDF starts the test procedures – read those before you crack a line.

New Holland Kobelco 7055, 7065 Workshop Manual – 557 Pages of Factory Content

That page count isn’t padding. It covers the Power Train (3), Hydraulic Pump (10 & 12), Control Valve (MWP, 13), Remote Control Valve (15), and the safety device system (9) – the LSD-200B and LSD-500B. The Safety Device chapter alone is worth the price if you’re working on the load-sensing circuits. The wiring diagrams and hydraulic schematics are OEM-original, not redrawn by an aftermarket editor. You get the same line routing and connector pinouts that the factory uses. Cross-referencing part numbers is straightforward because the manual includes the Kobelco part numbers for every pin, bushing, seal, and spring. That’s the kind of detail that saves you a trip to the dealer parts counter.

Check Test Procedures Before You Disassemble

At the front of the manual, right after the cover, is the “Performance standard-Test Procedure” section. This is where Kobelco tells you what pressures and flows to expect at each test port. If you skip this and start pulling components, you might miss a simple adjustment. For example, the swing system has a relief valve setting that needs a flow meter to verify – the manual tells you which port to tap, what adapter to use, and the acceptable range in psi. Don’t guess; use the procedure. Every test sequence includes a warning icon and a statement: “Read and understand these instructions. Failure to do so will increase risk of injury.” That’s printed on every page. Treat it seriously.

Safety Device [LSD-200B/500B]: Why You Need the Factory Diagram

The safety device system on these excavators is complex – it monitors boom height, swing lock, and travel alarm. The aftermarket manuals I’ve seen omit half the wiring connections. This factory manual includes the full control unit layout and troubleshooting flowchart for the LSD-200B and LSD-500B. If the overrun brake isn’t releasing, you can trace the signal from the solenoid back to the controller without chasing ghost voltages. One of my apprentice techs once spent four hours on a no-swing problem because he didn’t realize the safety device interlock was tripped. The diagram on page [DATA NEEDED] – actually, the chapter 9 section – shows the switch logic. Save yourself the headache.

Related Manuals

• New Holland Kobelco SK60 2017 Workshop Manual – 779 Pages of Factory Specs
• New Holland Kobelco SK330LC-6E, SK330NLC-6E, SK330-6E 2003 Workshop Manual
• New Holland Kobelco SK200LC Workshop Manual – Factory Specs for Hydraulic Excava

If you need background on Manual Transmission theory for the propel system, that’s external – this manual covers the actual machine. Similarly, Manual Transmission fundamentals won’t help you here; stick with the factory data.

Does this manual cover the 7065 model?

Yes, both 7055 and 7065 from specific serial numbers (GB-00002~ and GG-00002~).

What about the hydraulic pump?

Chapter 10 covers the NV hydraulic pump with components and specs. Also related: control valve, brake valve, motors.

I need torque specs for boom foot pins. Where are they?

The Maintenance Standard section starting page 3 provides exact dimensions and wear limits for pins and bushings, including for 7055 and 7065 boom, tower, and strut feet. Torque values for fasteners are given in the relevant system chapters – you must cross-reference the component number with the standard torque table in the General section. Never use generic torque charts for construction equipment; the bolt grades and lubrication conditions are specific. Use the factory tables or you risk galling threads or under-torquing critical joints.

Can I use this manual for other Kobelco models?

This manual is specific to 7055 and 7065. For different models like the SK60, check the related manual linked above.

You’ve got the specs, procedures, and torque values from the only source that matters – Kobelco’s own engineers. Access the Factory Manual and put it on the bench next to your torque wrench. You’ll thank yourself the first time you need the exact counterbalance valve torque.