Description

Ford 850 1977 Parts Catalog – OEM Factory Parts Breakdown for the Round Baler

If you are ordering parts for a Ford 850 1977 Parts Catalog and you don’t have this book on the bench, you are guessing. Guessing costs you time, money, and a trip back to the dealer when the wrong bearing shows up. This is a 61-page original OEM parts catalog from Ford New Holland – the same book dealers used in 1977. It is not a reprint. It is not a scanned PDF from someone’s basement. It is the genuine article, printed when the 850 Round Baler was still in production. I have fixed balers that were missing parts because the owner ordered from a generic aftermarket list. Don’t be that guy.

Parts Catalog Coverage: 7 Major Systems

Group numbers run the entire machine. You get the TWINE WRAPPER KIT (pages 48 thru 53) with every spring, roller, and arm. The GEARBOX ASSEMBLY (pages 32-35) shows the internal gears, seals, and bearings with Ford New Holland part numbers – not cross-reference numbers that may or may not fit. The HYDRAULIC SYSTEM (pages 36-37) covers the valve assembly and cylinder assembly. If your pick-up tine is bent, the BAR, TINE PICK-UP group on page 16 gives you the exact length and material spec. No aftermarket catalog lists that. The CONVEYOR GROUP, LOWER (pages 12-15) and UPPER (pages 22-24) are covered separately because they use different chain and slat configurations. The TWINE WRAPPER CONTROL, ELECTRIC (pages 44-46) shows the solenoid and wiring diagram – something you will not find in a service manual.

Who Needs This Catalog?

If you own a 1977 Ford 850 Round Baler and plan to keep it running another 20 years, you need this. Same if you are a dealer or a salvage yard that buys dead balers and rebuilds them. The catalog also helps the home garage guy who inherited a 850 from his grandfather and wants to restore it. You do not need to be a pro mechanic – the exploded views are clear, and the part numbers are right there. But you need to know left from right: the manual says “left” means facing the direction of travel. Read page 2 before you order that pick-up clutch assembly. Trust me.

OEM vs Aftermarket: Why This Catalog Matters

Aftermarket parts catalogs pull numbers from generic databases. They often merge supersessions without telling you. This 1977 Ford catalog prints the original part numbers as they left the factory. If a part was superseded later, that is a separate list. The catalog also includes common hardware not illustrated – nuts and bolts that mount each assembly. The description column tells you exactly which hardware belongs to which part. You cannot get that from a third-party website. For the price of a single wrong-order return, you can own this book and never make that mistake again. Related: the Ford Wheel Loader 1975 Parts Catalog – OEM Factory Manual uses the same part-numbering logic, if you work on those too.

Three Reasons You Need the Factory Part Numbers

First, the CAM DRIVE ASSEMBLY (pages 16-17) has specific roller bearings that look similar to a generic bearing but are not. Second, the PICK-UP ASSEMBLY (pages 16-19) uses a clutch assembly with unique friction discs – aftermarket listings often swap in a standard disc that slips. Third, the DRIVE ASSEMBLY (pages 30-31) includes the main drive sheave with a taper-lock bushing that has a specific keyway. Order that wrong once and you will understand. The Ford PA-4020-F 1979 Parts Catalog – OEM Wheel & Weight Specs is another example where factory numbers matter for wheel fitment. For a broader look at why OEM documentation is critical across the industry, see the Automotive Industry Overview.

How to Use the Group Numbering System

Each assembly has a group name and page number. Find your part by looking at the Contents page (page 3). Groups are not alphabetical but grouped by function. For example, TWINE WRAPPER KIT runs from page 48 to 53 – five pages of parts including the twine box assembly. You need the assembly box, twine (page 48) to see the box itself, then the wrapper control pages to see the actuator. Do not flip randomly. Use the Contents. The pages are numbered sequentially, and exploded views are labeled with callouts that match the part number list beside them. One trick: if you see a hardware listing immediately after a service part, that hardware belongs to that part – it is not included when you order the assembly.

FAQ – Common Questions About This Catalog

Does the catalog include torque specifications?

No. This is a parts catalog – it lists part numbers and quantities, not service procedures. You need the separate service manual for torque specs.

Can I use this to rebuild the twine wrapper?

Yes. The TWINE WRAPPER KIT section (pages 48-53) shows every spring, roller, arm, and bracket. The manual twine wrapper control is on page 45, and the electric version is on pages 44-46. If you are missing a part, you can read the part number directly from the exploded view and order it. This catalog will save you from buying a whole new kit when you only need a single arm. Most aftermarket parts lists only show the complete kit – not individual pieces. With this factory catalog, you get the exact breakdown. For instance, the bale counter optional group (page 42) lists the counter mounting bracket separately. That kind of detail is why you want the OEM document.

What is the publication date?

Issue 11-77, meaning November 1977.

Does this cover the Ford 850 made after 1977?

This catalog is specific to the 1977 model year. Later production may have running changes. Check the serial number of your baler against the change notes – the manual states Ford New Holland reserves the right to improve products without obligation. If your baler is a later serial break, look for a supplement catalog. The Ford SUPER DEXTA & Fordson Dexta 1977 Parts Catalog – OEM Factory Manual covers a different machine altogether.

Get This Catalog on Your Bench

You are working on a 1977 Ford 850 Round Baler. You need to order a pick-up tine. Or a gearbox seal. Or a twine wrapper spring. Without this 61-page factory catalog, you are ordering blind. Every part number in this book was printed when the baler was new. It is the same information Ford New Holland dealers used. Stop burning money on wrong parts and returns. Access the Factory Manual now – the PDF is ready to use on your tablet or print out for the workbench. Combine it with the Automotive Battery spec guide if you are also dealing with electrical components, but that is separate. Get the catalog, get the right part, get the baler baling.