Krupp Fördertechnik EH 2x25t – 22m Technical Manual

You ever had a deck crane start acting up mid-shift and the aftermarket wiring diagram you’ve been using shows a different pinout? That’s a dangerous way to work. I’ve seen techs chase phantom faults for hours because the schematic they had was a photocopy of a bad scan. For the Krupp Fördertechnik EH 2x25t – 22m Technical Manual, you’re getting the original factory document—167 pages of electrical and hydraulic documentation that came off the Krupp engineering servers. No reprints, no guesswork.

What This Manual Covers in 167 Pages

Section 1.0 starts right off with the electric system description. You get technical data for the main supply (3/PEN 50 Hz, 380 V) and auxiliary supply (220 V), plus the full motor list: two 125 kW pump drives, two 9 kW feed oil pumps, and the smaller fans and coolers. Everything is labeled with actual part numbers and assembly group codes—master crane gets an “M”, slave crane gets an “S”. That level of detail saves you from swapping the wrong motor.

Valve Current Generation: Why Specs Matter

Section 1.5 deals with the valve current generation. The electro‑hydraulic valves on this double deck crane need precise current to shift spools correctly. Outside the factory spec, you get sluggish response or a stuck valve. The manual shows the exact current ranges and the control logic that drives them. You won’t find that in any third‑party summary.

Wiring Diagrams – Part‑No. 2 350 154

Section 1.9 contains the full wiring diagrams with a specific part number. These are the original Krupp drawings, not redrawn by someone guessing the connections. If you’re troubleshooting a control fault or replacing a sensor (section 1.3.3 covers switchgear and sensors), you need these diagrams. Wiring mistakes on a 380 V system can kill components—or people.

Electric System Technical Data (Section 1.1)

Ambient temperature range: -30°C to +45°C. That’s the design envelope. The control voltage is 24 V DC, and the PLC hardware and software are described in section 1.4. There’s even a subsection on emergency operation (1.7) and fault removal with the fault announcement device (1.6). You won’t get this level of environmental and operational data from a generic manual.

Does This Manual Cover the Hydraulic System?

Yes—Section 3.0 starts Deck Crane Documentation II with a full hydraulic system description and a diagram. Then 3.1 gives spare parts lists for the hydraulic system with diagram, 3.2 lists hydraulic components, and 3.3 covers purchased parts with spare part documents. If you need to order a replacement valve or a seal, the part numbers are there. No cross‑referencing required.

Who Actually Needs This Manual?

If you maintain a double deck crane—whether you’re a port mechanic, a rig technician, or a workshop owner who gets called in when the wiring goes haywire—this is the bedrock document. The audience for this site includes DIY mechanics and equipment owners, but let’s be honest: a 25‑ton deck crane isn’t a weekend project. Still, the same OEM‑obsessed approach applies. You need the real factory torque specs, the real valve current values, and the real wiring numbers. This manual delivers that.

Source Authenticity: OEM vs. Aftermarket

I’ve seen manuals that claim to cover the “EH series” but use generic hydraulic symbols and omit the dual‑crane operation logic (section 1.3.2). That’s a liability. This one is original Krupp Fördertechnik documentation, straight from the German engineering house. The 167‑page PDF includes every line of the Deck Crane Documentation I and II, with original page numbering and no reprints. You can trust the torque on the pump mounting bolts because Krupp put it in writing.

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For anyone who has ever had to compare a crane’s control logic to a Manual Transmission shift pattern—different disciplines, same need for factual data—you know the cost of a wrong spec. Manual Transmission docs are simple next to this crane’s PLC logic, but the principle holds: original specs only.

Is this manual in English?

Yes, the entire PDF is in English. The original file name ends in “_en-93913016794.pdf”, so you’re getting the factory English version, not a machine‑translated copy.

Can I use this for a single EH crane or only the double?

If you have a single EH 2x25t crane, the master crane sections still apply. The manual clearly marks master vs. slave components, and the electrical and hydraulic principles are identical. You’ll just ignore the slave references. The double‑crane operation section (1.3.2) describes how they synchronize, but the single crane wiring is covered throughout. You can use it with confidence—no need to guess.

No fluff, no reprints. Just the factory document that Krupp engineers wrote. If you work on these cranes, stop burning billable hours on bad info. Download the Factory Manual right now and keep it on your shop tablet where it belongs.