Description

Case 530, 31, 310D, 310E, 310F 1977 Parts Catalog

If you’re hunting for a part number for a Case 31 backhoe and you’re flipping through some aftermarket reprint that’s been scanned three times, you’re wasting time. I’ve seen guys order the wrong bucket cylinder seal kit because the numbers didn’t match. That’s money down the drain. The Case 530, 31, 310D, 310E, 310F 1977 Parts Catalog – the factory original from 1977 – is what you need on the bench.

What’s Inside the 141-Page Parts Catalog

This catalog gives you the exact exploded views and part numbers for every component of the Model 31 backhoe attachment. Turn to the alphabetical index on page 4 and you’ll find everything from the Boom (page 23) to the Valve – Backhoe Control assembly (pages 71-85). Need to identify a stabilizer cylinder part? The Hydraulics – Swing and Stabilizer Cylinders section spans pages 49-55 with detailed exploded diagrams. The Hose and Fitting Conversion table on page 122 alone is worth the price – it lets you cross-reference old part numbers to current ones, saving you from ordering a hose that doesn’t fit. And the Numerical Index on page 123 lets you start with a part number and go straight to the figure. That’s 141 pages of information you can’t get from a generic parts website.

Does This Catalog Cover the Fuel System?

No, this is strictly a parts catalog for the backhoe attachment on Case 530, 540, 530SL wheel tractors and 310D, 310E, 310F crawler tractors. It covers the backhoe hydraulics, control valve assembly (pages 71-85), stabilizers, mounting parts, counterweights, and decals. If you need engine or drivetrain parts for the tractor itself, you’ll want a separate service manual. But if you’re rebuilding a crowd cylinder or need the correct bucket pin, this catalog has the numbers.

Audience Fit: Who Needs This Catalog?

You own a Case 530, 540, or 530SL wheel tractor with a Model 31 backhoe, or a 310D, 310E, or 310F crawler tractor with that same backhoe. The serial number range on page 2 is specific: Wheel tractor backhoe S/N 4041345 to 4075157, Crawler tractor backhoe S/N 4041720 to 4075165. If your machine falls in that window, this catalog matches. I’ve worked in shops where a guy bought a parts book for a 310C and tried to use it on a 310D – the stabilizer brackets are different. Get the right one.

Source Validity: Factory OEM vs Aftermarket

You get an official Case factory reprint from June 1977, publication C672. Not a third-party scan, not a copy – a clean PDF of the original Case document. Aftermarket parts catalogs often leave out critical tables like the Regenerative Circuit Parts (page 112) or the Criss-Cross Relief Valve (page 110). Without those, you’ll order the wrong valve. This one has it all. The diagrams are crisp, not blurred from multiple copies. You get the exact part numbers Case engineers assigned.

3 Reasons to Use the Factory Parts Catalog

Part numbers are verified by Case – you’re not trusting some reprint house that may have mis-typed a digit. The exploded views show the exact assembly order, like how the stabilizer cylinder mount bolts to the frame with the correct hardware. The Hydraulic Oil Filter section (pages 31, 35, 39, 45, 111) lists the correct filter part number for each configuration – wheel vs crawler, standard vs deluxe. One wrong filter can starve your pump.

Get the Right Part Numbers – Torque Specs Are in the Service Manual

This catalog doesn’t give torque specs. For that, you’ll want the factory service manual for the tractor and backhoe. But without the correct part numbers, torque means nothing if you’re using the wrong bolt. The Control Levers and Linkage (pages 19-21) show the exact pins and bushings. Use this catalog to order parts, then torque to spec from the service manual.

What serial numbers does this catalog cover?

Wheel tractors: backhoe S/N 4041345 to 4075157. Crawler tractors: backhoe S/N 4041720 to 4075165.

Does this catalog include torque specifications?

No. This is a parts catalog, not a service manual. Torque specs are in the factory service manual. However, the parts catalog gives you the exact part numbers for bolts, seals, and gaskets – without those, torque is useless because you might install a weaker bolt. The 1977 catalog covers the Model 31 backhoe attachment: hydraulic cylinders, control valves, mounting brackets, stabilizers, buckets, decals, and counterweights. The Hydraulic Pump section (pages 87-89) lists pump part numbers and drive components. The Regenerative Circuit Parts on page 112 are critical if your crowd cylinder drifts. Relief Valve Kits for the bucket cylinder are on page 107. So while torque specs aren’t here, the part numbers are essential for any repair.

Is this a PDF or a physical book?

It’s a digital PDF – a factory reprint of the original 1977 Case document. Clean, searchable, with a working alphabetical index and numerical index.

Can I use this for a 310G backhoe?

Only for models listed: 530, 31, 310D, 310E, 310F.

That’s the kind of detail you need.

This catalog saves you from ordering the wrong Crowd Cylinder seal kit. Don’t waste shop time guessing. Access the Factory Manual and keep it on your tablet or print it for the bench.

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