M & T Lathes A Operation & Maintenance Manual and Parts List is available for this lathe Harrison M – circa model M Photo Essay. Machinery Manuals | Parts Lists | Maintenance Manual | Service Instructions Manuals Is Proud To Offer 1 Quality Bound Copy Of A: Harrison M, 13in. 31 Mar Hi guys. I bought this lathe on UK eBay today. I need to know how large a ‘ footprint’ the short version has, so I can make space for it in m.

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Yes, when a M was for sale last week, I checked with Tony Griffiths’ website. There must be some of us who has one or at least access harrison m300 manual some info.

Harrison M300, 13in Swing Centre Lathe, Operation Maint and Parts Manual 1989

If you do not already have it, you can download it for free from Adobe. It is up to the individual harriison to use good judgment and to safely operate old machinery. Catalogs, manuals and any other literature that is harrison m300 manual on this site is made available for a historical record only. I’ll ask in harrison m300 manual Harrison Yahoo group also. I bought this lathe on UK eBay today. By the use of additional changewheels 18 Module pitches from 0.

harrison m300 manual Metal Working Machinery Publication Title: Whilst the top slide has a traditional screw-adjusted gib-strip, the full-length cross slide is fitted with a tapered type and the cross and top slides, as well as the saddle, are equipped with locking screws. Fitted with feed screws carrying twin ball-thrust races, that for the cross slide on early models had a nut closed by a wedge in common with many conventional lathes made by the Group to allow the elimination of backlash – though when the assembly is badly worn this arrangement can disguise the imminent failure of the threads.

Fitted on either the left or right of the apron to the customer’s choice the carriage traverse handwheel can be disengaged when using power feeds. The mm diameter quill, marked with inch, metric and sometimes both graduations is fitted with a ball thrust bearing, harrison m300 manual micrometer graduated collar and accepts harrison m300 manual No.


The two large cylinders on the end of the shafts protruding through the side of the apron housed the leadscrew and powershaft overload clutches. Index by Machine Harrison m300 manual. As is not uncommon, the m30 has put the toolpost in the one position to be avoided when taking the first cut ….


The M is indeed a very compact machine, just one foot longer than the Myford. As a final touch, tailstocks on later versions of the M carry felt bed wipers to help reduce the inevitable wear to the front section of the sole plate.

An M weighs about Kg lbs in short-bed form and Kg lbs as a long-bed harrison m300 manual.

Although safety equipment has varied during a long production run most machines have a useful “power-on” light, a rather small headstock-mounted, mushroom-headed emergency stop button, a long, foot-operated and very powerful spindle-brake and harrison m300 manual bar and electrical interlocking of the changewheel guard. A total of 39 metric, 35 English, 18 Module and 18 Diametrical pitches could be achieved by moving the control levers and either rearranging the standard changewheel set – hxrrison employing the extra non-metallic hence quiet-running gears harrison m300 manual were supplied with the machine in order for it to harrison m300 manual its full threading range.

The “T” model is easily recognised by distinctive majual and, on the M model, by a leadscrew and powershaft safety cover arranged to slide on a rail held on brackets bolted to the headstock and hwrrison ends on the bed. Donations will be used to offset the cost of bringing you this service to you and enhancing the site to include other useful features.

Early series lathes were fitted with a headstock gear-selector drum in “Delrin” which distorted, preventing movement of the selector forks. To view and print Publication Harrison m300 manual, you will need the latest version of the Adobe Acrobat Reader installed on your computer.

This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in harrison m300 manual cookie policy. Erik, I sent you a PM regarding this manual. Harrison m300 manual closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to the use of cookies.

Please remember that safety standards have changed over the years and information in old manuals as well as the old machines themselves may not meet modern standards. Most models have 12 spindle speeds arranged in geometrical progression in a ratio of 1. Harrison M saddle and compound slide rest detail.


Help – Harrison M manual or brochure needed

Harrison m300 manual headstock gears, all induction-hardened, run in a simple splash oil bath and are moved by two rather short levers on the front face of the headstock; as a safety measure the levers have to be pushed in before they can be turned and their finish, which is far too smooth, can make them difficult to operate with oily hands.

Help – Harrison M manual or brochure needed. Formed from a one-piece casting it is completely enclosed and holds induction-hardened gears driven by changewheels that have included, over the years, one or more non-metallic intermediates to promote quite running. harrison m300 manual

Bookmarks Bookmarks Digg del. The 38 mm 1. The electrical system is built into the left-hand end of the stand and accessible thorough a door equipped with an interlocked isolating switch that harrison m300 manual, for additional security, be padlocked in the off position.

Feeds are engaged by a traditional push-pull plunger and engaged and disengaged a very light-action, flick-up-and-down lever the operation of which is not affected by the how hard the lathe is working. Surprisingly, for a lathe often found in training workshops, the leadscrew is not protected by a cover as on the M, but there are torque-limiting clutches on both the leadscrew and powershaft – though earlier models were protected by a limiter on harrison m300 manual powershaft with just a mild-steel shear-pin through the splined shaft of the top harrison m300 manual stud to prevent over-load damage to the leadscrew.

Harrison M Lathe Operators Manual – Free eBooks Library

In comparison with earlier Harrison screwcutting harrison m300 manual the “Universal” unit fitted to the M is a considerable improvement and capable of reliably transmitting much great torque. Later machines were modified and the nut made solid–the change also affecting the design of the cross-feed screw, The satin-chrome finish micrometer dials are sensibly large with especially clear graduations with that on the cross slide arranged as a “direct-reading” type to shows the amount harrison m300 manual off the diameter rather than the radius of a workpiece.

Donations to Vintage Machinery. Simple, neatly laid-out and clear screwcutting chart.