Description

Clark Equipment 310 III-H Parts Catalog – Original Factory Document

You’ve got a 310 III-H that’s down because someone ordered the wrong brake slack adjuster or the hydraulic pump attaching parts don’t match. I’ve seen that more times than I’ve torqued head bolts. The problem is almost always aftermarket parts lists that drop a digit or swap a dash. This Clark Equipment 310 III-H Parts Catalog is the factory book – 136 pages of the exact part numbers and exploded views that Clark printed when the machine left the line. No reprints, no third-party guesswork. Open this PDF, get the number off the page, call your distributor. That’s how you fix it.

This book is not a repair manual. It’s a parts manual – which means it shows you every nut, bolt, seal, and assembly as Clark designed them. If you need to know which brake valve goes on a serial after G.M. 8VGH101, you start here. If you’re rebuilding the cockpit hydraulic shift control valve assembly, the exploded diagram on page 41 is your only source for the correct check ball and spring. Waste time cross-referencing online catalogs and you’ll still end up with the wrong part. Use the factory book and you order once.

Brake System Breakdown – Pages Covering Air Brake Valve and Slack Adjuster

The brake system on a 310 III-H tractor is an air-over-hydraulic setup. The parts catalog gives you separate sections for the brake air chamber, slack adjuster, and air brake valve. Page 63 has the brake slack adjuster and brake air chamber. Page 65 gives you the air brake valve and brake controls. If you’ve ever had a mechanic hand you a generic valve because “it should fit,” you know why you need the exact Clark part number. This manual lists the part number, the description, and the quantity per machine. No assumptions.

Does This Parts Catalog Cover the Transmission and Torque Converter?

Yes. The transmission case, first and third shaft group, torque converter assembly, and converter charging pump all have dedicated sections. The transmission control cover assembly starts on page 39. The hydraulic shift control valve assembly (cockpit) is on page 41. The torque converter housing and converter charging pump are on pages 47 and 49. The transmission oil filter cartridge kit is listed on page 55. If you’re ordering a gasket set or a clutch group, this catalog gives you the correct stack-up.

136 Pages of Authentic Clark Equipment Part Numbers for the 310 III-H

136 pages. That’s what you get. Not a scanned half-book, not a reprint missing pages. The PDF covers the tractor section only – machine serial numbers G.M. 8VGH101 and after. The index alone runs from A to C, listing every component from accelerator pedal linkage to control valve assemblies. Every part number in this book is a Clark-approved part. The front cover states: “It is important that only Clark-Approved Parts be used when new parts are required.” That’s not marketing. That’s liability. You use aftermarket parts and a brake line fails, you own the result. This catalog keeps your parts choices tied to the original spec.

Identify the Right Hydraulic Pump Parts

The main hydraulic pump and steering pump sections show you the attaching parts, the pump body, and the drive coupling. The index lists “Attaching Parts — Hydraulic Pump” on page 89, “Hydraulic Pump — Main” on page 77, and “Hydraulic Pump — Steering” on page 76. If you’re swapping a pump because the seal leaks, you need the correct O-ring and flange gasket. The catalog gives you the part numbers. Write them down, call Clark, get the parts. Done.

Valve Assemblies: Steering, Brake, and Hydraulic Shift Control

This catalog covers every valve the 310 III-H uses: air brake valve (page 65), steering control valve (page 75), cockpit hydraulic shift control valve assembly (page 41), main hydraulic control valve assembly (page 107), and the downstream pressure regulating valve assembly (page 50). Each entry shows the valve body, spools, springs, and seals as individual parts. If you’re rebuilding any of these valves, the exploded view is your map. Without it, you’ll end up with leftover springs and a valve that doesn’t shift.

One more thing: the decals and nameplates section on page 121. If you’re restoring a 310 III-H, the correct decal part numbers are in there. Don’t trust a generic tractor decal set. Get the original Clark numbers.

FAQ

What machines does this parts catalog cover exactly?

The tractor section of the Clark Equipment 310 III-H tractor scraper, serial numbers G.M. 8VGH101 and after. It does not cover the scraper body or elevator. For the full machine (Hancock scraper), you need the combined manual.

Can I use this to find the correct part numbers for the brake slack adjuster?

Yes. Page 63 has the brake slack adjuster and brake air chamber. Page 65 has the air brake valve. The part numbers are listed with illustrations.

Is this a reprint or a third-party copy?

It’s the original OEM PDF from Clark Equipment Construction Machinery Division. Not a reprint, not a scan of a scan. The document matches the factory printed parts manual No. 2536.

How many pages are in the PDF?

136 pages. Full index, exploded views, and part number lists.

Look, I run a six-bay shop in San Antonio. I’ve got no time to guess which part fits. When a 310 III-H comes in with a brake valve issue, I pull up this catalog, find the page, order the Clark part. That’s it. If you work on these machines – whether you own one, run a fleet, or fix them on the side – you need the same reference. Access the Factory Manual now.

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For background on the importance of OEM documentation in the Automotive Industry Overview, the Automotive Industry Overview page on Wikipedia covers the standards that make factory manuals critical.