Description

Ihimer 30J Parts Catalog

If you’re chasing a part number on an Ihimer 30J mini excavator and you’re working off a blurry screenshot from some forum, you’re wasting time. I’ve been in the shop long enough to know that guessing the wrong roller or seal costs you a Saturday and double shipping. That’s why this Parts Catalog exists. It’s 288 pages of OEM exploded views, part numbers, and assembly breakdowns. Not a reprint. Not a third-party compilation. Straight from Ishikawajima Construction Machinery.

What the 288 Pages Actually Cover

Open it and you land on the INDEX page, which is exactly how a service document should start—no fluff, no marketing, just a roadmap to every assembly on the machine. From LOWER MACHINE (sheet 1-1) through OPTION SPECIFICATION (sheet 15-10), every section is numbered, titled, and keyed to a specific page. The catalog splits the 30J into twelve main groups plus options. You want the SWING DRIVE DEVICE? That’s section 3-1, page 22. Need the HYDRAULIC OIL TANK ASSEMBLY? Section 5-7, page 66. Each assembly page gives you a clean exploded diagram with callouts and a corresponding parts table below it. No guesswork.

Lower Machine and Crawler Shoe Assembly: Getting the Right Track Parts

Track undercarriage takes abuse. If you order the wrong crawler shoe or front idler, you’re pulling the whole track again. Section 1-2 CRAWLER SHOE ASSEMBLY lists every pad, pin, bushing, and bolt. Section 1-4 FRONT IDLER ASSEMBLY gives you the idler wheel and its hardware. Section 1-5 LOWER ROLLER ASSEMBLY and 1-6 UPPER ROLLER ASSEMBLY cover the rollers. The LOWER TRACTION PIPING ASSEMBLY (1-7) shows the hydraulic lines that run to the travel motors. If you’ve ever had a track come off because a roller flange cracked, you’ll appreciate knowing the exact part number before you call your dealer.

Hydraulic Piping: Section 4-1 Through 4-5

The hydraulic system on a mini excavator is tight. One misidentified fitting and you’ve got a leak that takes hours to trace. This catalog devotes five sections to piping: RETURN & SUCTION PIPING ASSEMBLY (4-1), SWING & TRACTION PIPING ASSEMBLY (4-2), PUMP DISCHARGE & BOOM SWING PIPING ASSEMBLY (4-3), CONTROL PIPING ASSEMBLY (4-4), and TRACTION SHIFT PIPING ASSEMBLY (4-5). Each one shows the routing, fitting sizes, and bracket locations. If you’re swapping a control valve or adding a spare port, you reference these sheets to get the correct O-ring boss fittings.

Why OEM Parts Catalog Beats Aftermarket

Aftermarket parts catalogs cut corners. They’ll show a generic valve body and skip the sub-variants like the CONTROL PIPING ASSEMBLY (FOR SHORT LEVER) or the REMOTE CONTROL VALVE ASSEMBLY (FOR A・B CHANGE). This factory catalog includes every nuance: sheet 4-4B for short lever, sheet 4-4C for CE spec, sheet 5-5A for A/B change. The HYDRAULIC INSTRUMENT section alone lists nine different cylinder assemblies (boom, arm, bucket, boom swing, blade) plus traction motor, swing motor, rotary joint, control valves, and multiple valve assemblies. If you’re sourcing a seal kit for the BOOM CYLINDER ASSEMBLY (5-9), you get the exact piston seal and wiper part numbers. That’s the difference between a job that fits and a job that fights.

Real-World Use Case: Ordering a Boom Cylinder Seal Kit

Say you’ve got a Ihimer 30J with a leaking boom cylinder. You pull the cylinder, measure the bore and rod. Before you call your parts guy, flip to page 72 in the catalog – BOOM CYLINDER ASSEMBLY, sheet 5-9. That page shows the cylinder tube, piston, rod, gland, wiper seal, O-rings, and snap rings. You read the part numbers directly off the table. No cross-referencing, no “maybe it’s this one.” You order the correct kit, install it, and the leak is gone. That’s what this document does – it kills the back-and-forth.

Does this catalog include torque specs or repair procedures?

No. This is a parts catalog, not a service manual. It lists part numbers and assembly breakdowns. You need the separate Ihimer 30J service manual for torque values and overhaul steps.

I have a 30J with serial number above 01018501. Will this catalog cover it?

Yes. The cover lists serial No. 01018501~. That means it covers machines from that number onward. If your machine is older, you might need an earlier edition. Check the serial number range before purchase to confirm fit.

When you need to pin down a part on a Ihimer 30J, you don’t want guesses. You want exploded drawings with callouts and OEM numbers. This catalog gives you that. It’s the same document the dealer’s parts counter uses. Stop hunting through grainy screenshots and start ordering the right components. Access the Factory Manual and put the correct part on the machine.

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