New Holland 421HB 425HB 430HB 436HB 440HB Header Service Manual
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About the New Holland Agriculture Combines and Headers
New Holland factory service manuals for combines and headers: 75 manuals, each sold as a PDF download, from the 12HS to the VX7090.
New Holland 421HB 425HB 430HB 436HB 440HB Header Service Manual
This is the New Holland 421HB 425HB 430HB 436HB 440HB Header Service Manual, as a PDF. It runs to 519 pages in 7 parts.
It covers the New Holland 421HB, 425HB, 430HB, 436HB and 440HB combines. It is New Holland's own service manual, the documentation the dealer workshops repair these machines with.
About the New Holland 421HB combine
A combine has to be set and repaired by the book: the threshing and separating system, the cleaning shoe, the header and feeder, the hydrostatic drive and the electronic controls. The manual gives the settings and procedures for each.
What is inside
Its chapters cover the hydraulic system, the electrical system, the cab and air conditioning, the work equipment and the harvesting systems. The largest sections are Attachments/Headers - 58 (170 pages), Hydraulic systems - 35 (138 pages) and Electrical systems - 55 (118 pages).
- Introduction (24 pages)
- Hydraulic systems - 35 (138 pages)
- Frames and ballasting - 39 (24 pages)
- Wheels - 44 (30 pages)
- Electrical systems - 55 (118 pages)
- Attachments/Headers - 58 (170 pages)
- Platform, cab, bodywork, and decals - 90 (9 pages)
What you can do with it
- Find the cause of a fault before replacing parts
- Remove, overhaul and refit major components
- Set pressures, clearances and adjustments to the factory values
- Use the right torque values and tightening sequences
- Read the wiring and hydraulic diagrams when tracing a problem
Who it is for
Farmers who repair their own equipment, farm workshops, independent agricultural mechanics and dealers.
Make sure it is your machine
Check the model and serial number on your machine before ordering. Some manuals only cover a range of serial numbers.
Questions about this manual
Which machines does this manual cover?
The New Holland 421HB, 425HB, 430HB, 436HB, 440HB. If your machine has a different model number, look for the manual for that model.
Is it the original manufacturer manual?
Yes. It is New Holland's own service manual, not a third-party reprint or a summary.
How many pages does it have?
519 pages, in 7 parts listed above.
How do I receive it?
It is a PDF. After payment it is available to download from your account, and you can read it on a computer, tablet or phone or print the pages you need. No printed book is shipped.
