Description

FIAT Kobelco CK850G Technical Manual

You’ve seen what happens when a junior tech relies on a reprint manual for a machine this size. I’ve scraped busted hydraulic lines off the shop floor because somebody trusted a copied torque spec from an aftermarket disc. That’s why you need the real thing: the FIAT Kobelco CK850G Technical Manual, straight from the OEM file. Twenty-four pages, no fluff, no missing data — just the factory specs that keep a 170,000-lb crane out of the ditch. Skip the guesswork and start with the numbers that matter.

Specifications: Engine and Hydraulic Data

Page 3 lays out the HINO J08E-UV engine – 285 HP at 2,100 rpm, 750 lbf·ft torque at 1,600 rpm. Displacement is 469 cubic inches. The hydraulic system runs three variable displacement piston pumps with a max relief pressure of 4,626 psi on the load hoist. You get the full electrical system specs too: two 12V 136 Ah batteries, 24V starter, and individual fused circuits. If you’re diagnosing a no-start or low-pressure symptom, these numbers are your baseline. Don’t trust a third-party summary; get the factory page.

What Working Ranges Are Included?

Section 7 gives you working ranges – boom length up to 200 ft, fixed jib combination 180 ft + 60 ft. The manual includes charts for every configuration. I’ve watched a guy collapse a jib because he used the wrong range for a pick. The OEM chart on page 7 shows minimum radii and clearances. There’s also a table for boom backstops – required for all boom lengths. This isn’t a suggestion; it’s a safety spec. Mark that page before you rig anything.

3 Key Sections to Use Immediately

First, the lifting capacity table starting on page 11. It covers every boom and jib combo with capacities at various radii. Second, the transportation plan on page 19 – you need that if you’re moving the machine between jobs. Third, the parts and attachments list on page 21. That section cross-references wire rope diameters, winch drum specs, and attachment weights. If you’re ordering new rope, confirm the diameter (7/8 in. main winch, 5/8 in. boom hoist) before spending shop money.

Check the Lifting Capacity on Page 11

Max lifting capacity is 170,000 lbs at 11.0 ft radius. Page 11 breaks down capacity by boom length and jib angle. The manual also includes a note about ground support conditions – you need to factor in machine levelness. One mistake I see: guys pull the capacity from memory instead of reading the chart for their specific configuration. That’s how you overload a backstay. The manual’s chart accounts for outrigger spread and swing position. Don’t improvise; reference page 11.

OEM Documentation vs Aftermarket Reprints

Aftermarket manuals are dangerous because they re-type specs without verifying. I’ve found torque values off by 20% in a reprint for a similar model. FIAT Kobelco prints these 24 pages with the exact relief pressures, wire rope construction, and control system schematics. For example, the swing system pressure is 3,989 psi – not 4,000, not 3,900. If you set the relief to an aftermarket guess, you’ll either blow a seal or lose swing power. The OEM manual gives you the correct 783 psi for the control system, too. That matters when you’re adjusting the pilot circuit.

Need more supporting manuals for your fleet? Check these: FIAT Kobelco W80 2004 Technical Manual – 46-Page OEM Factory Specs covers a smaller wheeled excavator. FIAT Kobelco 7055-3F Technical Manual – 24-Page Factory Specs is a direct companion for the 70-ton class. FIAT Kobelco CK1600-II Technical Manual – 33-Page OEM Factory Specs handles the bigger sister crane. And if you’re brushing up on drivetrain fundamentals, an external source like Manual Transmission and Manual Transmission can fill in the basics – but the factory manual has the actual gear ratios for this model.

FAQ

Is this manual for the CK850G only?

Yes, it covers only the FIAT Kobelco CK850G.

Can I use this for routine maintenance?

Absolutely. The manual includes fluid capacities, filter specs, and hydraulic pressure settings. Page 3 gives you the engine oil capacity, coolant system specs, and battery voltage. If you’re changing hydraulic oil, the tank capacity is 116.2 US gallons. You’ll need the relief valve pressures to set the system correctly after service. That’s on page 4 of the OCR data. The manual doesn’t have a maintenance schedule per se, but it gives you the factory baseline specs to compare against. For a machine this size, guessing wrong on a hydraulic pressure can blow a seal or damage a pump. So yes, use it for maintenance, but know it’s a technical manual, not a service manual. You’ll still need the operator’s manual for daily checks.

You want to work on this crane with confidence? Access the Factory Manual – it’s the same PDF FIAT Kobelco sends to dealers. No aftermarket reprints, no missing pages. Pull it up on your tablet or print the whole 24 pages, and keep it in the cab. Your wallet – and your safety – will thank you.