Description

New Holland Kobelco SK25SR, SK30SR, SK35SR, SK15SR, SK20SR 2011 Service Manual

If you’re turning wrenches on a New Holland Kobelco SK25SR, SK30SR, SK35SR, SK15SR, or SK20SR, you already know the headache of aftermarket manuals. Wrong torque values, missing sections, wiring diagrams that look like a kid drew them with crayons. This Service Manual from 2011 is the real deal – OEM factory documentation, 67 pages, direct from the manufacturer. No reprints, no third-party edits. Just the specs you need to get the machine back in the dirt without pulling your hair out.

What the 2011 Manual Covers: 16 Sections of Factory Data

This isn’t a general guide. It’s the same book the dealer techs use. The table of contents runs from section 01 (Dimensions in Transportation Figures) all the way through section 16 (Conversion Tables). You get machine dimensions for every model – critical when you’re squeezing a SK35SR through a trailer gate. Section 3-1 lists engine spec data; 3-2 covers hydraulic equipment. Need the charge pressure for the pump? That’s in section 7-1. The manual includes a full hydraulic diagram (section 9) and an electric diagram (section 10). Maintenance standards in section 12 give you pin-to-bushing clearance specs and undercarriage wear limits.

One thing that stands out: the reference data in section 15. It covers flared joint tightening, ORS joint specs, plug for hose, torque for nuts and sleeves, flareless joint procedure, and capscrew torque values. That’s the kind of detail that keeps a fitting from leaking on a Friday afternoon. Page numbers are all factory-original – you flip to section 15-4 and see exact ft-lb values for JIC fittings. No guesswork.

Does This Manual Cover the Fuel System?

Yes, but not in a separate chapter. Fuel system information lives inside section 3-1 (Engine specifications) and section 4 (Performance). You get the injection pump timing data and fuel consumption rates. If you need the filter cross-reference, that’s in section 6-2 (Fitting positions of filter elements). The manual treats the fuel system as part of the engine group, which makes sense – you don’t pull the injector pump without the engine specs in front of you.

Torque Specs and Fluid Capacities: Where the OEM Manual Wins

Aftermarket manuals love to say “tighten to spec” without telling you what the spec is. This one lists tightening torques for capscrews and nuts in section 15-7. The values are in Nm, but you get a full conversion table in section 16 so you can work in ft-lb if that’s what your torque wrench reads. Fluid capacities? Section 6-1 gives you the oil and grease list – hydraulic oil, engine oil, gear lube, grease types. Section 6-2 shows exactly where each filter element lives. No more guessing which breather takes what.

Hydraulic pressure standards are in section 7-1 with measuring and adjusting methods. If your SK25SR’s swing brake won’t release, you go to that section, check the pilot pressure, and adjust the relief valve to factory spec. That’s how you avoid buying a $600 control valve you don’t need.

3 Reasons to Choose OEM Documentation Over Aftermarket

First, accuracy. This manual was printed in 2011 by New Holland Kobelco, not a third-party reprint house. Every torque value, every clearance spec was checked against the actual production machines. Second, completeness. You get sections 01 through 16 – including lifting diagram (section 14) and working range of attachments (section 13). Aftermarket “service manuals” often skip those. Third, traceability. The file name ends with “41009018969.pdf” – that’s a factory part number. You can verify it against a dealer’s system. Try doing that with a $5 eBay PDF.

Get the Right Hydraulic Diagram Before You Crack a Line

Section 9 is the full hydraulic diagram. Not a simplified doodle – the actual schematic with port numbers, relief valve settings, and cylinder port markings. If you’re swapping a main control valve on a SK30SR, you need to know which line goes to travel and which to boom. The factory diagram is the only source you should trust. Pair it with the electric diagram (section 10) and you can trace a no-start condition to a bad starter relay in fifteen minutes instead of three hours.

FAQ

Will this manual help me rebuild the final drive on a SK20SR?

Indirectly. Section 12-3 covers undercarriage wear limits and pin/bushing clearance. Final drive internal overhaul isn’t in this book – you’d need the factory parts manual for that. But you’ll get the drive motor hydraulic specs and pressure test data.

Are the torque values in inch-pounds or foot-pounds?

Nm only. Section 16-2 has a conversion table.

Does this include the SK40SR or SK45SR?

No. This manual is for SK15SR, SK20SR, SK25SR, SK30SR, SK35SR only. The OCR excerpt shows SK45SR data – that belongs to a different publication. Don’t use it for your SK45.

I need wiring diagrams for a SK35SR with a Yanmar engine. Are they in section 10?

Section 10 gives the electric diagram – harness layout, connector pinouts, switch logic. It’s model-specific to the SK35SR. The engine is covered in section 3-1. If your machine has an aftermarket engine swap, the diagram won’t match. Stick with the OEM harness as-is.

You’ve spent enough time chasing parts with wrong specs. Manual Transmission” rel=”nofollow”>Manual Transmission systems on these excavators require precise documentation – and this is it. Access the Factory Manual from AutoRepairManuals and keep it open on your tablet or printed out. Every bolt, every line, every pressure number is exactly what New Holland Kobelco intended. No aftermarket guesswork. No reprints. Just the 67 pages that get the job done.

Related manuals you might need: KOBELCO SK25SR SK30SR SK35SR Shop Manual”>SK25SR/SK30SR/SK35SR shop manual, KOBELCO Hydraulic Excavator SK25SR/SK30SR/SK35SR Shop Manual”>Hydraulic Excavator Shop Manual, New Holland Kobelco SK100 SK120 SK200 SK60 1990 Service Manual – 242 Pages”>Older New Holland Kobelco service manual. Manual Transmission”>Manual Transmission overhaul procedures differ – verify the year.