Description

New Holland Kobelco CKE600, CKE700, CKE800, CKE850-2, CKE900 Hydraulic Schematic

I’ve seen more botched hydraulic repairs than I care to count. Guy grabs a generic “universal” diagram off the internet, starts tearing into a CKE800’s valve bank, and ends up with a control pump that deadheads because he misread a pressure line. That mistake costs a grand in parts and a day of bleeding. The New Holland Kobelco CKE600, CKE700, CKE800, CKE850-2, CKE900 Hydraulic Schematic is the only document you should trust when you’re tracing a line, diagnosing a low-flow condition, or swapping a cylinder. It’s 32 pages of factory-original symbols, port abbreviations, and system overlays. Nothing aftermarket comes close to this level of detail.

Hydraulic Symbols and Abbreviations: The Factory Key

Page 1 of this schematic lays out every symbol you’ll encounter: swivel joints, two-stage double-acting telescopic cylinders, cushioned pilot cylinders, variable displacement pumps, counterbalance valves. The legend is laid out in a table format, so you don’t have to guess whether that circle with an arrow means a motor or a pump. The OEM even breaks down the abbreviations for the CKE/CKE/BME series in a three-page table starting on page 3. You get entries like “ACC – Accumulator,” “CLA – Clutch Aux winch,” “DR1 – Drain from No.1 Main pump,” and “PD M – Pressure for Main Winch Down.” If you’ve ever spent an hour chasing a “PD M2” line on a CKE900 and ended up at the wrong port, you know exactly why this matters. Aftermarket manuals lump these into generic “hydraulic circuit” sections. This one spells out which model uses which abbreviation — the table shows CKE600 through CKE900 and marks presence with a circle or dash. That level of model-specific detail is what saves you from routing a drain line to the wrong manifold.

Which Models Are Covered?

This schematic covers the New Holland Kobelco CKE600, CKE700, CKE800, CKE850-2, and CKE900. It also includes column headers for CKE1350, CK1000-2, CK1350, CK1600, CK2000, CK2500-2, CKE1800, CKE2500-2, BME800HD, and 7250-2, but the primary focus is on the CKE600 through CKE900 series. If you’re working on a CKE700 with a tagline winch, the table on page 4 shows you that “DR9 – Drain Tagline motor” applies to all five of those core models. The document also lists optional features like “PD1 – Boom/Jib Pedal control” for the CKE1350 (CEN) — useful if you’re cross-referencing a part from a later machine. Don’t come here expecting a repair procedure; this is a hydraulic circuit diagram with a symbol dictionary. Pair it with the service manual for torque specs and disassembly steps.

Why a 32-Page Schematic Beats a Service Manual Section

Service manuals shove the hydraulic schematic into an appendix — maybe six or eight pages, compressed, hard to read. This document dedicates 32 pages solely to the hydraulic system. Pages 1 and 2 are full-page symbol tables. Pages 3 and 4 are the abbreviation matrix. The rest of the document carries the actual circuit diagrams for each function: main winch, auxiliary winch, boom, swing, propel, and reeving. Need the charge pressure for the propel motor speed change? Check the entry “DR7 – Drain for Sol.4 : Propel Motor Speed Change” — it’s listed for all five models. That kind of granularity doesn’t exist in a reprint. If you’re rebuilding a CKE800’s variable displacement pump, you need the exact port designations and pilot line routing. This schematic gives it to you without flipping through 40 pages of engine specs.

Audience: Who Needs This?

If you own a shop in San Antonio like I do, you deal with both DIY customers and fleet owners. The DIYer who tries to replace a hydraulic cylinder on his CKE700 without a schematic is the one who snaps a fitting because he didn’t know it was a 37-degree JIC instead of an O-ring boss. The fleet mechanic who has a CKE850-2 that won’t swing calls me asking for a diagram — I send them this PDF. It’s also for the home-garage enthusiast who bought a used CKE600 at auction and wants to restore it. Without the hydraulic schematic, you’re guessing which line goes to the main clutch cooling and which is the pilot drain. Guess wrong and you’ll be buying a new control valve bank. This manual is your wiring diagram for oil — treat it like one.

Source Validity: OEM vs Aftermarket Print

I don’t trust aftermarket hydraulic schematics. They redraw the symbols, lose the reference numbers, and omit the model-specific tables. This document carries the file name “Kobelco_CKE600-CKE700-CKE800-CKE850-2-CKE900_Hydraulic_Schematic_en-41029010536.pdf” — that’s a factory part number, not some scanned copy from a third party. The OCR excerpt on page 1 shows the exact symbol table used by New Holland Kobelco in their own service documentation. The abbreviation list on page 3 matches the one I’ve used on actual CKE900 machines. If you want to understand Hydraulic systems the way the engineers designed them, you start here. Compare this to any generic “hydraulic circuit diagram” you find online — they never list the parking brake pressures or the “PB M – Parking Brake Main winch” port. That’s the difference between a schematic that works and one that gets you fired.

Related manuals that pair well with this schematic: Kobelco CK1600 Operation & Maintenance Manual, New Holland Kobelco CKE1350 CK1600 2004 Service Manual, and New Holland Kobelco CKE1350 CK1600 2004 Technical Manual. Those contain the step-by-step disassembly and torque values you need once the schematic tells you which hose goes where.

Does this manual include service procedures or just the schematic?

Only the hydraulic schematic with symbol legend and abbreviation tables — no repair steps, no torque specs.

I have a CKE800 with a swing motor that won’t hold pressure. Can I diagnose it with this document?

Yes — you’ll use the abbreviation matrix on pages 3 and 4 to identify the “DR4 – Drain Swing motor” and “DR5 – Drain Propel motor” lines. The schematic will show you the pilot circuits for the swing control valve (Item 32) and the sequence from the main pump. Cross-reference the drain lines with the pressure ports (PD M, PD B) to isolate a leaking counterbalance valve. Pair this with a pressure gauge and you can pinpoint the fault in under an hour. The schematic doesn’t tell you how to replace the valve, but it tells you exactly where to connect your test equipment. That’s worth the price of admission alone.

Look, I’ve been turning wrenches for 28 years. You don’t rebuild a CKE900’s hydraulic system without a factory schematic. The aftermarket stuff is a gamble — sometimes you get lucky, sometimes you spend three days chasing a ghost. This document is the real deal: 32 pages, OEM symbols, model-specific abbreviations. Access the Factory Manual and put it on your tablet in the shop. You’ll thank me when you’re tracing a “PD M2” line on a CKE850-2 and find the exact port in under two minutes.