Description

Furukawa Unic UR330 Parts Catalog

If you are ordering parts for a UR330 hydraulic crane and you do not have the factory parts catalog sitting on your bench, you are asking for trouble. I have seen too many guys guess a part number from a worn-out sticker or a blurry photo, order it, wait a week, then find out it does not fit because the serial number split happened at A123452. That is billable time down the drain. This Furukawa Unic UR330 Parts Catalog – 97 pages, original OEM publication – gives you the exact part numbers, quantities, and interchangeability codes straight from the manufacturer. No aftermarket translations, no guesswork. You get the same book the dealer tech uses.

How to Use This Parts Catalog

Page 3 explains the key number system. Each illustration has an index number that matches the key number in the list. The book covers UR330 cranes from serial number A123452 onward – that is stamped on the specification plate at the column. If your crane is older, call the dealer. The catalog shows assembly parts, sub-assembly parts, and component parts with separate key numbers. For example, a boom assembly might be key A1, and the sheave inside it is A3. The quantity column tells you how many per assembly. You cannot get that detail from a generic parts website.

Key Number System: Decoding the Part List

Look at page 3 again – the key number column uses letters A, B, C for sub-assemblies and A1, A2, B1 for component parts. The parts number is a 5- to 8-digit code. The parts name is in English. Quantity is listed per assembly. The serial number column tells you if a part changed at a certain build date. The ‘Mark’ column on page 4 shows interchangeability: O means old and new parts swap in and out, X means they do not – you must verify serial number before ordering. △ means part not for sale. D means disuse. Q means quantity change. I have been burned by ignoring that X mark before – the replacement part had a different bolt pattern. Do not skip it.

Ordering Service Parts: What You Need to Supply

Page 4 lists exactly what the dealer needs: crane model, serial number, assembly name, part name, part number, quantity. Write it down before you call. If the mark is X, you also need the manufactured date. The catalog warns that UNIC genuine parts are the only ones with warranty – using non-genuine parts voids any claim. In the note at the bottom, Furukawa Unic states that parts are subject to change without notice. That is why you need the current catalog, not a three-year-old photocopy.

Interchangeability Markings: O, X, D, Q

This is the part that separates rookies from mechanics who get paid. The O mark means you can order the new part directly. The X mark means you must confirm the serial number and manufacture date – I have a UR330 in the shop right now where the boom cylinder seal changed at A125000. The old seal kit has a different piston diameter. Without this catalog, you would order the wrong one. The D mark tells you the part is obsolete. The Q mark tells you the quantity used changed – maybe a bolt pack went from 4 to 6. Page 4 spells it all out. Memorize it.

97 Pages of Factory Specs

Every page counts. The catalog breaks down the entire UR330 series: boom, jib, outriggers, turntable, control valves, cylinder assemblies, hydraulic pump, and swivel. Each section has an illustration with callouts. The part numbers match what Furukawa Unic stocks. Pair this catalog with the UNIC UR330 Series Operators Manual for operating procedures, or the Furukawa UR Series Hydraulic Crane Workshop Manual for repair specs. Need a deeper parts breakdown for the smaller URW model? Check the Furukawa Unic URW295C1UR Parts Catalog – 256-Page Factory Spec. For broader context on how these crane standards fit into equipment reliability, see the Automotive Industry Overview and the Automotive Industry Overview for safety protocols.

What serial numbers does this catalog cover?

UR330 series from serial number A123452 onward. Check your specification plate.

How do I read the key number system to order a sheave assembly?

On page 3, find the boom illustration. The sheave assembly might be key A3. The parts number is 9110 00019, name ‘Sheave – side 200 e Ass’y’, quantity 1 set. Below it, the component sheave has key A5 with part 0217 21180. If you only need the sheave ring, order the component part – not the full assembly. The key letter tells you the grouping. A is boom, B is jib, C is outrigger, etc. The ‘Mark’ column will tell you if the part number changed at a certain serial break. Always verify the mark before ordering. If you see an X, call the dealer with your serial number. If you see a Δ, do not order – that part is not sold separately. The catalog note says ‘No warranty can be given on a trouble caused by using a part except genuine parts.’ So do not substitute from another crane model just because it looks similar – I have seen a counterweight bolt snap that way.

Every repair shop that touches a Unic crane needs this catalog on the shelf. Do not waste time cross-referencing aftermarket lists that are missing half the pages. Get the real thing. Access the Factory Manual now and keep it on your tablet or print it out for the toolbox.