Description

Aichi SR-182, ISR602 Parts Catalog – 175 Pages of OEM Factory Lists

If you’re ordering parts for an Aichi SR-182, ISR602 Parts Catalog and relying on some third-party diagram you found online, you’re going to get the wrong bearing, the wrong seal, or the wrong hose. I’ve seen it happen more times than I can count. A customer brings in a machine down because the replacement part didn’t match the original. Then you lose a day, the machine sits, and the rental bill piles up. This 175-page OEM Parts Catalog from Aichi Corporation is the only source that lists the exact part numbers, quantities, and level codes used on the factory assembly line.

Engine & Mounting: Where the Parts List Starts

The catalog opens with the Engine & Mounting section (group 1-1, fig 7A200380). That’s where you’ll find the block, mounts, and all the brackets that hold the powerplant in the frame. If you’ve ever had a machine vibrate loose because a mount bushing was wrong, you know why you need the factory list. Each component is broken into three levels: assembly (LEVEL 1), sub-assembly (LEVEL 2), and individual part (LEVEL 3). The part number, quantity per machine, and serial number range are all there. No guesswork.

Fuel Tank Section: Don’t Guess the Line Routing

Under Fuel Tank (group 3-1, fig 7B200055), the catalog shows every fitting, clamp, and hose. Aichi lists the tank assembly, then the return line, pick-up tube, and mounting hardware. One wrong hose diameter and you get a fuel leak that could put someone in the hospital. The factory print tells you the exact part. This is not a generic “fits many models” list. It’s specific to the SR-182 and ISR602 with applied specifications A6, E1, F1.

Level Codes and Symbols: What Those Marks Mean

The foreword on page 2 explains the LEVEL column and the letter symbols (A, N, C, K, S, H). Here’s the short version: ‘A’ means the part ships only as an assembly – you can’t order the loose piece. ‘N’ means semi-finished – you finish the machining. ‘C’ means a substitute part may be supplied. ‘K’ marks service kit components. ‘S’ means selective sourcing from multiple manufacturers. ‘H’ covers seals and adhesives. Ignoring these codes costs you money. If you order a LEVEL 3 part when the symbol says ‘A’, you’ll get an assembly you don’t need. The manual shows the exact meaning on page 2, so read it before you order.

3 Reasons to Trust the Aichi Factory Print

First, this is direct from Aichi Corporation – the same company that built the machine. The part numbers match the ones stamped on the components. Second, the exploded diagrams show how everything goes together. You see the bolt lengths, washer sizes, and orientation. Third, the serial number ranges are listed (last four digits) so you can confirm fitment for your specific machine. There are no “supersedes to” or “may fit” notes. It’s either the part or it isn’t.

Does This Catalog Cover the Full Boom Assembly?

Yes. The BOOM section has seven separate lists (LIST 1 through LIST 7). That covers the main boom sections, pivot pins, bushings, and all hydraulic tube clamps. The BASKET section has two lists. The LOWER CONTROL BOX and UPPER CONTROL BOX are each one list. Every cylinder – elevation, extension, balance (lower and upper) – is broken out with its holding valves and pilot check valves. If you need to rebuild the hydraulic system, this catalog gives you every o-ring, seal, and plug part number.

Source Validity: OEM vs. Aftermarket Parts Lists

Aftermarket parts catalogs often merge multiple models into one diagram and leave out critical differences. This Aichi catalog was printed for the SR-182 and ISR602 only. The applied specifications (A6, E1, F1) are printed on the cover. No generic cross-references. The part number format matches Aichi’s factory system. I have seen shops waste a full day trying to match a part from a third-party list. With this manual, you get the number, you order it, you install it. That’s it. For related models, check the AICHI SR182/ISR602 Self Propelled Aerial Platform Service manual, or the Aichi SR18AJ SR21AJ SR18A SR21A Parts Catalog – 300pp OEM and Aichi SR12B SR12BJ ISR40B ISR40BJ Parts Catalog – OEM Factory List for other platforms.

Understanding how Aichi structures its part numbers is similar to the general practices described in the Automotive Industry Overview. For more background on factory parts catalogs, see the Automotive Industry Overview.

FAQ

Does this catalog give torque specs or repair procedures?

No. This is a parts list only – no step-by-step repair instructions, no torque values. Use it to order parts, not to disassemble.

How do I read the LEVEL column when I see a number like ‘2’?

The LEVEL column indicates whether a component is an assembly (1), a major sub-assembly (2), or an individual part (3). For example, an entire cylinder appears as LEVEL 1. Its barrel and rod are LEVEL 2. The piston seal and o-ring are LEVEL 3. Always order the level that matches what you need – if you order LEVEL 3 when the manufacturer supplies only the LEVEL 1 assembly (marked with symbol ‘A’), you will receive the whole assembly anyway and pay more. The foreword on page 2 explains the symbols in detail, including the letters A, N, C, K, S, H. Read it. I’ve seen techs skip that page and end up with the wrong parts because they didn’t notice the ‘S’ symbol meant a selective part from a different supplier.

Stop ordering parts blind. You have the machine down, you need the correct part number the first time. Access the Factory Manual and get back to work.