Description

Solar 280LC-III 1998 Parts Catalog

If you’re ordering parts for a Solar 280LC-III, you don’t get to guess. One wrong hose assembly and you’re bleeding hydraulic fluid on a job site. This 1998 Parts Catalog is the exact document the factory used when building these machines. 24 pages of clean, OEM part numbers with serial number splits down to the unit. Not a third-party rehash. A real factory print from November 20, 1998.

What This 24-Page Catalog Delivers

The manual splits into two main sections covering the pilot piping system. Fig. 1300 covers pilot piping (1)-DX28, and Fig. 1310 covers pilot piping (2)-DX28. Each figure comes with a full parts list keyed to exploded diagrams. You get every washer, bolt, O‑ring, hose, adapter, and solenoid valve listed with its factory part number. Serial number ranges are printed right next to each line item, so you know exactly which revision fits your machine. Page 2, for example, lists the pilot filter assembly (key 21) with sub‑components like element, case, valve assembly, and electric indicator – all cross‑referenced by serial number.

Pilot Piping Diagrams: Fig. 1300 and 1310

Both diagrams are drawn in the same style Solar used for decades – clean, no bullshit. The OCR excerpt shows the front of Fig. 1300 includes annotations for serial number breaks from 5001 all the way past 6100. Hoses like part 2184-1036D191 are specified by length and fitting size. If you’ve got a machine with serial number 6450 or later, you need the updated pilot piping assembly 2400-1884. That kind of detail saves you from ordering the wrong line and scratching your head when it doesn’t reach.

Serial Number Ranges: Why They Matter

Construction equipment manufacturers change components mid‑run all the time. The 280LC-III had at least four different hose configurations for the pilot system depending on when it was built. If you ignore serial numbers, you’ll end up with parts that physically fit but have different flow characteristics or wrong porting. Page 4 shows the solenoid valve (key 13) changed three times: 2420-9323B up to 5071, then 2420-9323C to 6784, then 2420-9323E from 6785 on. Ordering the wrong one means the valve spool might not shift correctly. That’s a safety issue if the excavator’s swing brake doesn’t release.

OEM Source vs Aftermarket Parts Catalogs

I’ve seen aftermarket catalogs that list generic part numbers for “pilot valve” without any serial number reference. Those catalogs get you into trouble when the replacement part doesn’t match the port size or pressure rating. This factory catalog lists every piece with its original manufacturer number. Even O‑rings are specified – P18 and P14 sizes with part numbers S8000181 and S8000141. Use the wrong O‑ring material and it swells in hydraulic oil. Stick with the OEM numbers from this catalog and you’re done. Related manuals you might need: SOLAR 280LC-III Control Valve Parts Catalog covers the main spool, and the SOLAR 470Lc-V Parts Catalog is a different machine but shares some hose assemblies. Also check SOLAR 210w-V Parts Catalog if you work on that platform.

Using This Catalog on the Job

When you’re tearing down a pilot system, lay this catalog open on the bench. Find your machine’s serial number – stamped on the frame near the cab door. Then look up the figure. Each drawing has callouts that match the part list. No flipping pages back and forth; the diagram and list are on facing pages. The parts list includes quantities per machine. Need one bolt? Order one. Don’t buy a bag of 100 just because Amazon says so. This catalog gives you the exact count. For safety, always replace hydraulic hoses in matched sets if the manual calls for it. For more background on how these machines fit into the industry, see the Automotive Industry Overview and related construction equipment standards. Automotive Industry Overview covers the evolution of hydraulic systems.

Who Should Buy This Catalog

If you own a Solar 280LC-III excavator, you need this page‑by‑page parts breakdown. Same if you run a shop that services these machines – your parts guy will save hours tracking down the right numbers. Home garage enthusiasts? This isn’t a car manual, but if you’ve got the shop space and the excavator, this catalog belongs in your file. Beginners can use the exploded diagrams to understand how the pilot circuit routes hydraulic oil to the control valve. Just don’t skip the serial number checks.

Does this parts catalog include service procedures or torque specs?

No. This is strictly a parts identification book. You need the separate Solar 280LC-III service manual for torque values, fluid capacities, and assembly procedures.

Can I use this catalog to order parts for a 1999 or 2000 model year 280LC-III?

The catalog covers serial numbers from 5001 upward, which includes machines built through the late 1990s. If your machine has a serial number higher than what’s listed (e.g., past 6785), some parts may have been superseded. The catalog lists the latest part numbers available at time of printing. Always verify with your local Solar dealer for newer revisions, but this gives you the factory baseline.

Stop worrying about mismatched hoses and wrong valves. Access the Factory Manual and get the OEM parts catalog that matches your machine’s build. 24 pages, accurate serial number breaks, real part numbers. Your excavator will run right, and your wallet won’t eat the cost of a return.