Brother KH840 knitting machine has 200 needles, 4.5 mm apart. Read about the pros and cons of this model in my Knitting Machine Encyclopedia. This article is dedicated to a specific Brother KH840 machine serviced and fully tested in my shop in January 2026.
The machine was opened, cleaned, oiled and inspected for rust. It had some minor rust spots (mostly on the case) but they were all treated. All needles were removed, cleaned, inspected, and replaced (with new ones from new stock) if they were faulty.
The sponge strip in the retaining bar was replaced. I placed medical tape on the end to prevent the sponge strip from buckling. I recommended getting some medical tape because if you remove the retaining bar (for example, to replace needles), the tape might come off because the retaining bar with a new sponge strip sits pretty right in its channel.
The carriage was thoroughly inspected and deep-cleaned as well. All buttons push with ease. All levers and flippers move freely, too.
After the machine was deep-cleaned, I tested it on a full bed by knitting tuck, slip/part, and two-color fair isle. I used two different yarns. All tests went well (watch a video of these tests) and demonstrated that the machine patterns without any flaws and that all needles form correct stitches. In fact, during the testsm I discovered that one needle (despite a thorough inspection) did not form correct stitches and I replaced it. After that, no more faults in the fabric.
The setup will include all major and almost all minor accessories, some of which are new: tension mast, carriage lock, claw weights, table clamps, row counter, button for the punchcard mechanism and needle selection tool set. The accessories are stored in the built-in toolbox.
The missing accessories are the oil (but Hope’s gun oil on Amazon). Hard copy of the manual will NOT be included but a manual in English as well as in other languages is available online for free.
Additionally, the original end caps for the case were cracked so I replaced them with the new ones. Thus, you will see some color mismatch. All plastic rivets are also new.
I will include a new set of 15 punchcards for tuck, slip, and fair isle, 10 additional cards for lace (typically only 5 are included in the standard card set), and additionally 5 custom cards. I will also include a small sample of yarn that will work really well for this machine, so you can learning how to use it with problem-free yarn.
Pros:
- The machine was deeply cleaned and inspected
- The punchcard reader was deep-cleaned and tested; no mispatterning
- A lot of accessories included are new
- I typically do not test lace carriages, but I did in this case because the lace carriage included is not from the original machine but from Brother KH910. In fact, I tested two carriages for this customer and picked the KH910 lace carriage. Here is a video of this particular KH940 on your machine that I tested specially for you. You are welcome! 🙂
- including additional punchcards: 5 extra cards for lace and 5 extra custom-punched cards from my stash
Cons:
- The insides of the case had some minor rust, which I treated and covered with silver rustoleum. The bed itself did not have any rust.
- The lid has some minor scratches and scuffs
- Some color mismatch due to newly installed plastic rivets and end caps
- The sinker plate has some minor roughness, but it does not affect its working.
- The tool holder on the front panel has some staining inside it.
- The lid had some rust, and I covered it with special protective paint.
- The model name tag is a bit discolored
The pictures of these imperfections are below. Happy Knitting!
