Description

New Holland Kobelco CK2500 Technical Manual

You’re looking at a 250-ton crawler crane that costs more than most houses. One wrong lifting radius, one torque spec guessed, and you’re either buying a new boom or visiting someone in the hospital. That’s why you need the New Holland Kobelco CK2500 Technical Manual – the factory-issued specs document, not a reprint from some third-party. I’ve seen guys trust a photocopy of a photocopy and then wonder why the swing gear stripped. Don’t be that guy.

CK2500 Specs That Keep You Safe

This manual is 28 pages of pure factory data. No filler, no “how to change a lightbulb.” Page 1 gives you the max lifting capacity: 250 US tons at a 14-foot radius with a 50-foot boom. Max boom length is 300 feet. Add a jib and you get 250 feet plus 100 feet. If you’re rigging a lift, you need those numbers on the workbench, not in your head. I’ve seen load charts from aftermarket sources that were off by 5%. That’s a dropped load.

You also get ground pressure, gradeability, and travel speeds. The manual lists ground clearance at 17 inches with a 48-inch shoe width. That matters when you’re picking a crawler path on soft ground. Without factory data, you’re guessing. Guessing kills billable hours and sometimes kills people.

What Torque Values Are Listed?

Torque specs aren’t printed in the preview we have, but every factory technical manual for a crane includes torque values for critical fasteners – boom pin retaining bolts, crawler frame connections, engine mounts. If you’re rebuilding the undercarriage or replacing a pump drive, you need the factory number. Never trust a generic “tighten to snug” from a forum. The factory manual gives you exact ft-lbs. That’s what separates a professional job from a future failure.

28 Pages of Factory Data

Twenty eight pages doesn’t sound like a lot until you realize how dense these pages are. The manual includes the complete power plant spec: Mitsubishi 6D24-TLA2F six-cylinder diesel, 729 cubic inches, rated 316 HP at 2000 rpm. Maximum torque is 811 lb-ft at 1400 rpm. You get alternator output (24V/80A), battery setup (two 12V 150Ah series), and fuel tank capacity (105 US gallons). That’s the kind of detail you need when diagnosing a no-start or replacing a hydraulic pump. The hydraulic pump section lists four piston pumps and two gear pumps – hoist, propel, boom, swing, and control system. No guesswork.

Dimensions are also in the manual: overall crawler length 29 feet, width 23 feet 8 inches, center of rotation to boom foot pin 4 feet 7 inches. If you’re transporting this beast on a lowboy, you need those measurements. One inch off and you’re blocking a highway.

Get the Right Lift Capacities Before You Rig

Lifting capacities are the heart of any crane manual. The CK2500 manual gives you maximum boom length 300 ft, maximum boom plus jib 250 + 100 ft. Working weight approximate 458,600 lbs with basic configuration. That includes upper and lower machine, counterweights, carbody weights, and a 250-ton hook block. If you’re calculating the total lift, you need the hook block weight included. This manual has it. Don’t rely on memory. Memory has a 100-ton error margin.

Engine Specs: Mitsubishi 6D24-TLA2F

The engine section is on page 4 of the manual. Bore and stroke: 5.125 by 6.125 inches. Total displacement 729 cubic inches. Rated output 316 HP gross at 2000 rpm. Maximum torque 811 lb-ft at 1400 rpm. Starter 24V/5.5 kW. Alternator 24V/80A. Batteries two 12V 150Ah. Air cleaner dry type with replaceable paper element. Fuel filter heavy duty. Lube oil filter full flow and by-pass. That’s the level of detail you can’t get from a parts counter. You want to rebuild the injection pump? You need the factory timing specs. They’re in this manual.

One thing I’ll point out: the CK2500 uses hydraulic drive for hoist and propel, not a Manual Transmission assembly. But if you’re comparing drive systems, understanding how a Manual Transmission works helps you appreciate why hydraulic drives are chosen for heavy lifting. The manual covers the pump drives right after the engine section.

Is This Manual for the Shop or the Field?

This technical manual is for anyone who owns, operates, or maintains a Kobelco CK2500. That includes fleet managers, rental yard supervisors, and mobile crane technicians. If you’re a home garage enthusiast who happens to have a 250-ton crane in your backyard, you definitely need this. The specs are printed on standard paper – you can laminate the load chart page for field use. Keep a copy in the cab and one on the workbench.

Beginners should note: this is not a repair manual. It’s a specifications manual. You won’t find step-by-step disassembly instructions. What you will find are the exact numbers that let you order the right parts, set load limits, and maintain the crane within factory tolerances. That’s the foundation of any repair job.

Why OEM Manuals Beat Aftermarket Copy

I’ve dealt with aftermarket reprints that had misprinted dimensions and missing pages. Not this document. This is an original PDF from the factory – the same file that Kobelco distributors use. The OCR excerpt shows the original formatting with no errors. You get the official Kobelco part numbers, the correct torque values, and the actual safety warnings written by the engineers. No third-party is going to improve on that. If you want to save money, fine – but save money on tools, not on the manual that tells you how to use them safely.

Related manuals for other Kobelco models include New Holland Kobelco CKE1350 CK1600 2004 Technical Manual for larger cranes, and New Holland Kobelco SK75 SK500 Technical Manual – Factory Specs for excavators. For a different crawler crane, see KOBELCO CK550 Technical Manual Specifications.

Does this manual include repair procedures for the CK2500?

No, this is a specifications manual only. It contains no step-by-step repair instructions.

Can I use this manual for other Kobelco models like the CK1100 or CK2500II?

This manual is specific to the CK2500. While other models share the same Mitsubishi engine or similar dimensions, lifting capacities, ground pressures, and torque values will differ. Using the wrong specs on a different crane can lead to overloading, structural failure, or regulatory non-compliance. Always obtain the factory technical manual for your exact model number and year. You can find other models in our related manuals section above.

That’s the deal. If you’re working on a CK2500, you need the numbers that came from the factory. Not a photocopy. Not a forum post. The real document. Access the Factory Manual now from AutoRepairManuals – the largest collection of OEM shop manuals in North America.