New and Used FMC/John Bean Brake Lathes for Your Workshop

Updated on January 21, 2019
earnestshub profile image

35 years' experience as a successful owner operater of an auto repair shop and buyer and seller of auto repair equipment.

The FMC Brake Lathe

FMC has been making great brake lathes as well as a wide range of other automotive equipment for many years, starting with the early 600 series.

The FMC brake lathe is not very big, yet the build quality and strength of these machines belie their small size.

The early models had a few design faults, but they were related to bad operators who used the wrong method of cleaning (compressed air) or did not replace the switch cover accurately.

The later John Bean model solved some of the problems with the 600s, and it has remained good value for the money. The standard tools and light truck kit are well made using very nice metal. Quality is very high with these machines.

To sum up, how I feel about FMC/John Beam brake lathes, they are a terrific machine that competes well with the Ammco series of brake lathes and is another used brake lathe that I would recommend.

FMC John Bean Special.  This model was extremely popular, and you will still see many of them in brake shops.
FMC John Bean Special. This model was extremely popular, and you will still see many of them in brake shops.

Issues With Old FMC Brake Lathes

A used FMC brake lathe can be a good buy if you are aware of their little problems when they get old.

The early models had these problems:

  • The detent spring for the disc/drum lever breaks.
  • The power on/off switch gets saturated in brake lathe oil and fails.
  • The arbour was fixed poorly in the very first model.
  • The cross-feed drive shaft needed constant adjustment, due to poor design that was corrected on the first FMC/John Bean signature series.
  • The flexible light easily comes loose, and the light switch breaks easily.
  • The squeeze plate on the cross-feed needs constant adjustment when changing from light to heavy work.
  • The feed nuts wore out.

Nevertheless, none of these problems that appear with age and use is expensive to repair. The cross-feed problem can be solved. Most of these problems arise in the first place from poor preventative maintenance or using the wrong lubricants.

Early Model FMC 600


The earlier models like the one above came out with an optional huge metal bench fitted with a drum sander.

When the drum sander became redundant, both FMC and Ammco went for a smaller bench.

The JB special models came on a very small bench that could be disassembled easily, had a very small footprint yet had space for all its tools in the front under the bench.

You will still see this model in service in high-end brake shops. I like these a lot, they have sorted out most of the service weaknesses by the time they made these, so they are much easier for an operator to understand and maintain.

The FMC signature series opposite has seen 29 years service, been updated with a newer cross-feed shaft, and is as accurate as a brand new one ... literally as close to zero run-out as can be read on a dial gauge.

In the final running test, the dial gauge running against the spinning arbour does not move at all!

The tolerances are as good as or better than when it left the factory. If you fine-tune the brake lathe belt adjustment, any "ticking" on the gauge will disappear.

Used FMC John Bean special brake lathe
Used FMC John Bean special brake lathe

Caring for Tools on the FMC

The tooling on the FMC is simple and accurate. The cones must be kept very clean, adapters, cups, pre-load spring, and arbour must be kept very clean.

I use the brake lathe to surface the cups contact area in cases where they have been badly handled or have been dropped.

Taking care of the tools and arbour is the key to getting a long life from both. Even a little dust on the working surfaces can cause disc damage.

  • Slots in hub bearing mount tools must be kept perfectly clean.
  • The arbour must be free of any dust oil or dirt at all times.
  • Mounting tools must never be dropped. If a tool is dropped or struck hard by another hard surface, it must be checked for surface abrasions, cracks or indentations.
  • Cutting tools must be sharp at all times. Rotate the blade regularly, and they do last a long time.

FMC JB special with the cutter assembly fitted.
FMC JB special with the cutter assembly fitted.

The Cutter Bar

All the early model cutter assemblies were the same on FMC brake lathes, for the simple reason that the design was terrific and would be hard to improve on.

From the first models ever produced to the latest models, this brake lathe has remained a high-quality unit with great parts backup.

I have sold many of these FMCs and have never had a failure after repair or reconditioning one for sale.

As you can see by the photos, these FMC brake lathes are easy to service, simple and robust.

They are ideal on the small bench for general workshops where they are used as a separate profit centre.

You will make money with one of these.

FMC Drum Feed Shaft

You can see the cross-feed shaft running along the body of the brake lathe. Above it is the hexagonal hole which is the drive for the disc cutter feed.
You can see the cross-feed shaft running along the body of the brake lathe. Above it is the hexagonal hole which is the drive for the disc cutter feed.
FMC feed lever. In the drum position it drives with the long shaft you see in the previous picture. In the disc position it drives from that hexagonal hole also shown on the prev pic.
FMC feed lever. In the drum position it drives with the long shaft you see in the previous picture. In the disc position it drives from that hexagonal hole also shown on the prev pic.

The early model FMC 600 series had a sliding two-piece cross-drive shaft that had to be finely adjusted so the drive would disengage properly when the machined disc was finished.

This adjustment is very fine, and relies on an onion nut with a brass liner bearing on the sliding shaft hooked in a clevis connected to the lever.

These 600 machines were always needing adjustment when the onion nut loosened and slipped when underfeed load.

The FMC JB Signature special came out with a better fixed-length system, so I made some to fit the older machines and converted them, resulting in almost no free warranty work for me to do.

In short, a well maintained well operated FMC, although needing to be serviced regularly, is a reliable machine. But because regular maintenance is so crucial to this machine, I would recommend that the machine is fastidiously maintained.

The FMC Tool Kit

Be careful with your tools. These cups and cones are very expensive to replace.
Be careful with your tools. These cups and cones are very expensive to replace.

The standard tool kit with the FMC is very good, and has adapters for most disc and drum brake machining set-ups.

You can add to tools as you need them, or buy expansion kits for light trucks and four-wheel drives that do not fit standard tooling. Gut all the common cars are covered in the standard kit if you add a couple of extra bearing surface-mounted split double-ended cones to the stock set.

If you do a wide range of vehicles in your workshop, you will need at least one more kit of adapters.

It is also a good idea to have a small arbor for some jobs.

Refurbishing a 600

An early model FMC 600 before reconditioning. This rough old machine was still accurate enough to do your Ferrari discs on BEFORE it was rebuilt.
An early model FMC 600 before reconditioning. This rough old machine was still accurate enough to do your Ferrari discs on BEFORE it was rebuilt.

This ancient 600 series was refurbished, modified with a later model cross-feed shaft and returned to service. I was able to give a 10-year warranty on the major components of these lathes when set up and maintained by the service book.

Even the crossfeed nut will last this long if correctly serviced, and providing the lathe is looked after and lubricated reasonably well, nothing is likely to go wrong mechanically or electrically in that time.

Naturally, I was able to sell my rebuilt machines very easily to the brake shop experts.

FMC Adapter Kit

Disc and drum brake adapters
Disc and drum brake adapters

This is a complete FMC adapter kit which will fit most disc rotors and drum brake hubs.

You can buy whole kits or individual cones and cups online with ease.

Just ensure the quality is first rate. I buy, recommend and use genuine parts unless I find something better, which happens rarely.

Maintenance and replacement of the feed nut can be carried out by any competent motor engineer who understands the way the FMC is built.

No tricky hidden nuts to find. Just follow the manual and remember to see how it is assembled before trying to manhandle anything off the brake lathe.

The FMC feed nut, from both sides
The FMC feed nut, from both sides

The FMC Feed Nut

The feed nut on the FMC is made from a diamond-like hard bronze alloy of some type and is very expensive to replace.

Many people have made copies of the original nuts, usually from brass alloy or a common bronze alloy. There are some good after-market feed nuts out there, but unless you know a lot about it, buy an original feed nut. They last years longer than most replacements.

FMC has always had quality components, even if the design was not always perfect.

This article is accurate and true to the best of the author’s knowledge. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters.

© 2010 earnestshub


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    • profile image

      Terry Hume 

      6 months ago

      I have a on car disc brake lathe the switch is faulty an the machine goes for ten minutes then stops an wont go anymore till the next day , my problem is who can I get to repair the unit , I am in Windsor ,Sydney , Australia wait for your reply

    • profile image

      Miguel Palacios 

      2 years ago

      helo i would like your advise on how much can i pay for a used FMC brake lathe , thank you in advance

    • profile image


      2 years ago

      I am looking for second hand drub and break disc machine

    • profile image


      5 years ago

      Hi, Can the arbor of an FMC 600 turn by hand? I bought a used machine, and the arbor don't turn by hand, is that normal?

    • profile image

      Julians Auto Center 

      5 years ago

      Good morning,i have a dual mag fmc tire changer and the center post will not return counter clock wise all the way after removing a tire.Can you tell me what has happened or what i need to purchase to repair this with. Thanks Kenneth

    • profile image


      7 years ago

      I have a FMC B-601. I was wondering what attachment I would need to turn electric brake drums for trailers.

    • Paolocruz profile image

      Paolo Cross 

      7 years ago from Philippines

      A well researched hub! Nice. Thanks for the information.

    • profile image

      phil's brake and alignment ser. 

      7 years ago

      i hav a FMC 600 series ( john beam ) lathe . the toggle switch is bad.. wondering if this is a job that i can do. i have manual with pics. only. thanks .......... phl

    • profile image

      Dave Gibson 

      8 years ago


    • profile image


      8 years ago

      Great article I am in the brake lathe repair business

    • profile image


      8 years ago

      I'm leaving you my email in case you need more information to answer my questions. Thanks so much and hope to hear from you.

    • profile image


      8 years ago

      I have two brake lathe's one is to machine rotors and the other is to machine drums. However the one to machine drums has a switch that switches to drums or rotors but it doesn't have the nessesary accessories to machine rotors. Can it be modified to machine drums and rotors? If so how is that done?

    • profile image


      8 years ago

      Question for you, what could be causing my fmc brake lathe (b600) to leave rotors scratched as if it was burnt? Once we put the rotors on the car it doesn't vibrate but it makes a noise.The rotor stays marked as if it only braked in certain places.

    • profile image


      8 years ago

      Would you have any knowledge of LM American 8500 lathe? They look almost like a FMC clone.

    • earnestshub profile imageAUTHOR


      8 years ago from Melbourne Australia

      To Allah Ditta of excel.... I am no longer selling these machines, so I can't help you. I deleted your comment, as it is not relevant to this article. I suggest you speak with SnapOn.

    • profile image

      Alan Usen 

      9 years ago

      Great hub. Thanks for useful tips

    • earnestshub profile imageAUTHOR


      9 years ago from Melbourne Australia

      Sorry Carlos, I am no longer in the auto workshop equipment business.

    • profile image


      9 years ago

      hi lm interesting on buying an fmc john bean brake l want to know if you do international shipping let me know prices years and caracteristics to my email


    • earnestshub profile imageAUTHOR


      10 years ago from Melbourne Australia

      Good guess Paradise!

    • Hello, hello, profile image

      Hello, hello, 

      10 years ago from London, UK

      This is really informative and I pass it on to my son to whom it means a lot more. Thank you for your clearly written explanations.

    • earnestshub profile imageAUTHOR


      10 years ago from Melbourne Australia

      Thanks Candie! I am doing a full series on automotive workshop machinery and equipment.

    • Paradise7 profile image


      10 years ago from Upstate New York

      I'm impressed. You must have your own toolshop.

    • Candie V profile image

      Candie V 

      10 years ago from Whereever there's wolves!! And Bikers!! Cummon Flash, We need an adventure!

      You are an automotive manual in sneakers! Great series for anyone wanting a primer on automotive repair/tools/equipment! Thanks Ernest!


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