Description

Furukawa Unic URV370 Parts Catalog – 481-Page Factory Spec

Furukawa Unic URV370 Parts Catalog – you either have the factory breakdown or you’re ordering bits by feel. I’ve watched guys spend a whole morning cross-referencing aftermarket numbers for a crane that’s down, only to get the wrong seal carrier. That’s billable hours you don’t get back. This is the real thing – 481 pages of factory part numbers, exploded views, and ordering instructions straight from Furukawa Unic in Tokyo. No translation errors. No “close enough” dimensions.

How to Read This Parts Catalog (Page 2 Details)

Page 2 spells out the system with actual examples. You get a parts number like 0146 24000 (Boom Assy), quantity per assembly, and an index number that ties the illustration to the list. The “Ass’y” column uses A, B, C to show sub-assembly and component parts. If you’ve ever cursed a parts diagram that assumes you know assembly hierarchy, this layout stops that cold. You follow the letter chain – A = assembly, A-A = sub-assembly, A-A-B = component. No guessing.

Mark Column: Disuse, Obsolete, Quantity Change

Page 3 explains the symbols. A “D” means the part is disuse – don’t order it. A “△” marks an obsolete part. “Q” signals a quantity change in the assembly. If you ignore those marks you’ll order parts that either don’t fit or aren’t shipped. I’ve seen that happen with a boom cylinder – guy ordered a seal kit with a “Q” mark from three revisions ago. Wasted a day.

Ordering Service Parts: The Factory Procedure

Page 3 also covers what information Furukawa Unic needs when you order. Crane model, serial number, assembly name, part name, part number, quantity. And the interchangeability mark – ○ means you can order the new part directly. No mark means check serial and manufacture date. This is why you keep the catalog on the bench next to the machine. Without it you’re calling the dealer with “um, it’s the silver thing under the boom.”

Assembly vs Sub-Assembly vs Component Parts

The catalog breaks every group into three levels: assembly part, sub-assembly part, component part. The illustrations show each level exploded. If you’re rebuilding a swing gearbox and need the needle bearing, you go to the component level under that sub-assembly. The parts list gives you the exact Furukawa Unic part number. No cross-referencing a third-party number that may or may not match. This is the same data the factory uses.

Why OEM Parts Cataloging Matters for Hydraulic Cranes

Hydraulic cranes aren’t your driveway pickup. One wrong seal on the URV370’s outrigger cylinder and you’ve got a safety issue. The catalog doesn’t give you torque specs or service procedures – that’s in the Furukawa UNIC URV Series Work Shop Manual”>Furukawa UNIC URV Series Work Shop Manual and the UNIC URV370 SERIES Operation & Maintenance Manual”>UNIC URV370 SERIES Operation & Maintenance Manual. But for ordering the right part, this is the master list. Pair it with the Furukawa Unic URW295C1UR Parts Catalog – 256-Page Factory Spec”>Furukawa Unic URW295C1UR Parts Catalog – 256-Page Factory Spec if you’re running mixed fleet.

3 Things This Catalog Does for Your Shop

1. Eliminates part number confusion – you get the exact number from the factory list, not a re-indexed aftermarket version.
2. Saves time on ordering – you hand the parts guy the index number and quantity; he finds it in two minutes.
3. Reduces returns – the interchangeability column tells you upfront if the new part supersedes the old one.

How to Use the Exploded Views

Each group (boom assembly, turntable, hydraulic tank) has a labeled illustration with index numbers. You find the index in the parts list, read the part number, and order. The illustrations are clear line drawings, not grayscale photocopies. You can see bolt patterns, seal grooves, and bushing locations. That matters when you’re trying to identify a part you can’t read because oil and dirt have erased the stamp.

Does This Catalog Cover All URV370 Serial Numbers?

Yes – from serial number F100001 and up. The serial number is stamped on the specification plate on the column. If your crane’s serial falls in that range, this catalog applies. If you’ve got an older unit with a different prefix, you may need an earlier edition. Check the plate before you buy.

Frequently Asked Questions

Can I use this catalog to repair my URV370?

No. This is a parts catalog, not a service manual. It shows part numbers and assembly hierarchy, not removal, installation, or torque procedures. For repair steps, get the workshop manual.

Are the part numbers in this catalog still current?

The catalog includes interchangeability marks so you know if a part is superseded or obsolete. For parts marked with a circle (○), order the new part number. For unmarked parts, verify serial and manufacture date against your machine.

What’s the difference between assembly and component part in this catalog?

Assembly part is the whole group (e.g., boom assembly). Sub-assembly is a major chunk inside that (e.g., boom head section). Component part is the individual nut, bolt, bearing, or seal. The “Ass’y” column letters tell you the level. You order at the component level unless the assembly is sold as a unit.

Does this catalog include wiring or hydraulic schematics?

Negative. Schematics live in the operation and maintenance manual or the service manual. This catalog is strictly parts breakdown. You get the part number, quantity, and assembly relationship – not fluid routes or electrical circuits.

Source Authenticity: OEM vs Aftermarket

This is a factory-printed parts catalog from Furukawa Unic Corporation, Tokyo. Printed in Japan. The document ID is PCURV370200003A. The OCR text confirms it’s the same data the dealer’s parts counter uses. Aftermarket catalogs often re-number parts or leave out the interchangeability column. With 481 pages of factory information, you’re not rolling the dice. If you want to understand how the automotive industry approaches documentation standards, check Automotive Industry Overview and Automotive Industry Overview”>Automotive Industry Overview for context. But for crane parts, stick to the factory source.

You need the right part number, not a guess. Access the Factory Manual now and keep it on the bench next to the URV370. Your next parts order will take five minutes, not two hours.