Description

FIAT Kobelco 7055-3F Technical Manual – Factory Specs You Can Trust

If you’re turning wrenches on a FIAT Kobelco 7055-3F, you need the actual factory specs, not some aftermarket translation that leaves out half the footnotes. I’ve seen guys guess on boom assembly and end up with a 55-ton crane that lists sideways. This is a 24-page technical manual – the genuine OEM document from Kobelco, not a reprint.

Page 1 gives you the full spec sheet: max lift 55 tons at 3.7 meters, boom lengths from 9.1 to 51.8 meters, and the engine data – a Hino J08E putting out 159 kW at 2,000 rpm. You also get the rope speeds for main and auxiliary drums, track dimensions, ground pressure numbers. That table on page 1 saves you 20 minutes of phone calls to the dealer. All units are SI, but on this site you can convert to imperial if you need.

Boom Configurations and Assembly Notes

This manual devotes a full page (page 3) to boom configuration diagrams. You get every possible combination of 3.0m, 6.1m, and 9.1m intermediate sections, with and without lug attachments. There’s a specific note: if you’re running a jib or assembling a boom over 39.6 meters without an auxiliary crane, you need the 6.1m or 9.1m lug-equipped intermediate. That kind of detail keeps a rig from folding mid-lift. The diagrams show exactly which sections go where – upper, lower, and the order of assembly.

Rated Load Charts – Crane and Tower Configurations

Seven pages of load charts, both for standard crawler crane mode and luffing tower mode. For the crane setup you get main boom, auxiliary sheave, and jib charts. For the tower setup you get tables for tower lengths from 21.0 meters up to 42.4 meters, in steps. Each chart includes the critical note: “定格総荷重の注意” – that’s the load rating caution. If you ignore the notes about wind speed limits or jib offset angles, you’re betting someone’s life. Page 2 has the hook winding limits and the rope speed table – that page alone explains why the 19t hook requires a 300 kg tip weight on the tower jib at certain lengths.

Why OEM Documentation Beats Third-Party Copies

I’ve had techs hand me a color copy of a load chart that was scanned at 72 dpi – the numbers were blurry, and they lifted a 12-ton load thinking the chart said 22. That’s how you crush a cab. This Technical Manual is the original factory PDF, scanned from the actual Kobelco document. Every dimension, every torque value (where applicable), every rope diameter is the same data the factory sends to its dealers. No guesswork. No editorial mistakes. The 24 pages cover everything from overall dimensions (page 2 shows the 3,200mm track width and 4,530mm expanded) to the optional attachments like the clamshell and pipe layer.

3 Areas Where This Manual Saves Your Weekend

1. Boom assembly sequence – The bookmarks break down each section: boom composition, fixed jib, tower jib, and the working range diagrams. You don’t have to flip through random pages.
2. Rope diameter and length – Main hoist rope is φ22mm × 175m, boom hoist rope is φ16mm × 150m. The manual lists every wire rope spec so you don’t undersize a replacement.
3. Front attachment equipment – It tells you exactly which hooks, sheaves, and weights are standard vs. optional. The 55t hook is standard; the 32t and 19t are options. That matters when you’re quoting a job rental.

Does This Manual Cover the Fuel System or Engine Repair?

It covers the specifications of the engine (Hino J08E, 159 kW) but not step-by-step overhaul procedures. This is a technical manual for crane operation and setup, not an engine service manual. If you need the full engine rebuild specs, look for the separate Hino J08E workshop manual. For the crane itself – boom, hoist, swing, travel, and load charts – this is the one you want.

Who Should Buy This Manual?

If you’re a crane operator, a rental yard mechanic, or a mobile tech who works on Kobelco crawler cranes, this saves you the headache of working from memory. The diagrams are to scale – page 2 shows the overall dimensions at a 1:120 scale, with every dimension in millimeters. If you’re setting up a 7055-3F on a job site, having the boom configuration and load charts in your tablet is worth more than a phone call to the factory rep.

Access the Factory Manual – What You Get

24 pages, full bookmarks in Japanese (but the tables and diagrams are universal), direct PDF format. No password, no watermark. You get the same document Kobelco issues. I’ve used this manual to verify boom lengths on a 7055-3F that had been field-modified, and the load chart matched the serial number. That’s the kind of peace-of-mind you can’t get from a forum post.

Related Manuals:

• FIAT Kobelco W80 2004 Technical Manual – 46-Page OEM Factory Specs
• Kobelco CK1600-II Hydraulic Crawler Crane Load Charts
• KOBELCO BME800HD Heavy Duty Base Machine Manual

For reference on general crane and transmission theory, see Manual Transmission and Manual Transmission.

FAQ – FIAT Kobelco 7055-3F Technical Manual

Is this manual in English?

No, it is in Japanese. But the diagrams, load charts, and specification tables use numbers and symbols that are universal. If you need an English translation of the caution notes, you’ll have to cross-reference, but the numerical data is clear.

Does it include torque specs for the crawler track bolts?

It does not list specific torque values for track hardware. It covers overall dimensions and ground pressure, but not undercarriage bolt torques. For that you’d need the separate service manual.

How many pages are there?

24 pages.

Will this manual work for the 7055-3F with the luffing tower attachment?

Yes. The manual includes a full section on the luffing tower configuration, with load charts for tower lengths from 21.0 to 42.4 meters, plus the tower jib assembly and working range diagrams. All the critical load ratings are there.

The bottom line: if you work on a FIAT Kobelco 7055-3F, you need the factory load charts and boom assembly instructions. Access the Factory Manual now so you have the correct numbers on your tablet before the crane arrives on site.