Description

Clayson 122 1971 Parts Catalog

You’ve got a Clayson 122 1971 Parts Catalog need sitting in front of you – a combine that’s down because a part number is missing or the wrong bracket got ordered. Don’t tell me you’re about to guess the part number from a blurry online photo or a third-party cross-reference. I’ve seen that end with a machine torn apart for three days waiting on the right fastener. This 186-page factory catalog eliminates the guesswork. Period.

Page 23 shows the A1 Maaibord (cutterbar) with every bolt, bearing, and bracket labeled. Need the studs for the traction housing? Page 73 covers D7 Tapeinden aan tractiekast with exact part numbers and code references. That’s the difference between ordering once and ordering twice.

A1 Maaibord – Page 23 and the Cutterbar Breakdown

The cutterbar assembly is where most wear happens on a combine. This manual devotes full-page exploded views to every piece: skid shoes, knife sections, hold-down clips. Each part has a figure number and a five-digit Clayson part number. The bottom of the page includes a code column – those numbers tell you which machine serial range the part fits. For example, code “4” means machine 308001 through 579999. Code “64” picks up from 680001 onward. If you skip that check, you might bolt on a part that doesn’t align. I’ve seen it happen.

Reading the Parts Code System

Flip to page 2. Clayson prints a full explanation of the code system in four languages: Dutch, English, French, German. The (*) column in each parts list points to footnotes that restrict a part to specific production runs. This is critical. A 1971 Clayson 122 might have had running changes mid-year. The manual accounts for that. No aftermarket PDF gives you that granularity. You either have the factory code table or you don’t.

What Does the (*) Code Column Tell You?

Every figure number in the catalog includes that column. Look at any assembly – say, the steering column (C2 Stuurkolom, page 47). The code next to the part number tells you the exact machine serial range where that part applies. If the code is blank, it fits all machines. If there’s a number, you need the footnote. That footnote might say “4: 308001 – 579999”. Your combine serial number is on the right side of the operator’s platform. Match it. I’ve seen guys ignore the code and end up with a steering pump that didn’t line up. Don’t be that guy.

This Catalog Is 186 Pages of Factory Data – Not a Repair Manual

Let’s be clear: this Parts Catalog doesn’t give you torque specs or step-by-step overhaul instructions. It’s a parts identification book. You use it alongside the service manual. The value here is the exact OEM part numbers and the exploded diagrams that show how every component fits together. Need the hydravariator? Section D5 and D6 cover both the hydravariator and the hydraulic drive variator with separate part numbers for each. The 1971 publication year means this is the original factory data, not a reprint that may have blurred illustrations or skipped pages. 186 pages, bound in the original format as a PDF scan.

Who Needs This Clayson 122 Parts Catalog?

Any owner or mechanic working on a Clayson 122 combine from the early 1970s. The manual covers all sections: cutterbar, reel, auger, feeder housing, threshing drum, cleaning shoe, grain tank, hydraulic system, steering, brakes, transmission, and the cab platform. If you’re restoring a 122 or keeping it in the field, you need this to source the correct seals, bearings, belts, and sheet metal. Home garage guys without a dealer network rely on this to cross-reference with modern parts. DIY farmers who refuse to pay dealer markup – this pays for itself on the first order.

OEM Print vs Aftermarket: Why I Trust the 1971 Original

Aftermarket parts catalogs for old combines are often scanned from pirated copies or generated from generic databases. They leave out the code footnotes, they use fuzzy images, and they sometimes list superseded numbers without explanation. This manual comes directly from Clayson N.V., Zedelgem, Belgium – print date April 1971. The part numbers are the same ones stamped on your original components. I’ve used it to pull a steering arm from a salvage yard and confirm the bore size before buying. You can’t do that with a third-party list.

For related models, consider the Clayson M103 1988 Parts Catalog for later machines, the Clayson M80 Parts Catalog for mid-size harvesters, or the Clayson M89 Parts Catalog if you’re working on the older M series. For background on how factory parts catalogs evolved alongside manufacturing, the Automotive Industry Overview entry covers assembly line practices. The Automotive Industry Overview also provides context on serial number systems.

Frequently Asked Questions

Can I use this catalog to find repair procedures?

No. This is a parts catalog only.

Are the part numbers still valid for 2025?

Some may be obsolete. But the cross-reference codes let you trace supersessions. The manual includes a code system (page 2) that shows which machine serial numbers each part applies to. You still need to check with your dealer for current availability. However, the exploded diagrams give you the exact assembly view, so you can identify what you need even if the number changed. That’s why I keep it in the shop.

Does this manual cover the M80 or M103?

No. This is specific to the Clayson 122. For other models, see the related manuals linked above.

Is the PDF searchable?

The scan is from original printed pages. Text is not OCR’d in the file, but the page layout is clear.

You’ve read the details. You know the difference between a factory print and a skinned aftermarket copy. If you’re serious about keeping that Clayson 122 running with the right parts, access the factory manual from AutoRepairManuals. Don’t waste time chasing wrong numbers.