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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QQcmdZViewItem all the best. Mission Submitting Content VintageMachinery. A total of 39 metric, 35 English, 18 Module and 18 Diametrical pitches could be achieved by moving the control levers and harrison m300 manual rearranging the standard changewheel set – or employing the hrarison non-metallic hence quiet-running gears that were supplied with the machine in order harrison m300 manual it to achieve its full threading range.

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Harrison m300 manual, 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 the powershaft with just a mild-steel shear-pin through the narrison shaft of the top changewheel stud to prevent over-load damage to the leadscrew.

Early series lathes were fitted with a headstock gear-selector drum in “Delrin” which distorted, preventing movement harrison m300 manual the selector forks. Harrison M saddle and compound slide rest detail. Login to Your Account. Feeds are engaged by a traditional push-pull plunger harrison m300 manual 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. Donations can be made through PayPal or by sending a check or money order to us.

It is up to the individual user to use good judgment and to safely operate old machinery. There must be some of us who has one or at least access to some info. And Harrison still sell a M, but it looks like it’s grown manuual bit in length over the years. The M is indeed a very compact machine, manuual one foot longer than the Myford. The headstock gears, all m00, run in a simple harrison m300 manual oil bath and are moved by two rather short levers maunal the harrison m300 manual face of the headstock; as a safety harrison m300 manual 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.

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Help – Harrison M manual k300 brochure needed.


As a final touch, tailstocks on later versions of harrison m300 manual M carry felt bed wipers to help reduce the inevitable wear to the front section harrison m300 manual the sole plate. 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.

The mm diameter quill, marked with harrison m300 manual, metric and sometimes both graduations is fitted with a ball thrust bearing, a micrometer graduated collar and accepts a No. Simple, neatly laid-out and clear screwcutting chart. The cross and top slides are identical to those used on the later Colchesterand series Student and Master lathes. Centralised lubrication is fitted, activated by the button on the bottom right hand side of the apron.

Both were listed with, as standard, an all-metric screwcutting gearbox or screwcutting by changewheels and often but harrison m300 manual always with the Mbased version fitted with a motor rated at 0. As is not uncommon, the photographer has put the toolpost in the one position to be avoided harrison m300 manual taking the first cut …. And I am trying hard to get as much of the accessories with it as possible, but already before the auction ended it was at the Machinemovers.

Bookmarks Bookmarks Digg del. Most models have 12 spindle speeds arranged in geometrical progression in a ratio of 1. 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 on either the left or right of the apron to the customer’s choice the harrison m300 manual traverse handwheel can be disengaged when using power feeds.

Harrison M & T lathes

An M weighs about Kg lbs in short-bed form k300 Kg lbs as a long-bed model. Metal Working Machinery Publication Title: If you want to know more or withdraw your consent to all or some of the cookies, please refer to the cookie policy.

Harrison m300 manual 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 taken off the diameter rather than the radius of a workpiece.


Fitted with feed screws carrying twin ball-thrust harrison m300 manual, that for the cross slide on early models had a nut closed by a wedge in common with many conventional hartison made by the Group to allow the elimination mnual backlash – though when the assembly is badly worn this arrangement can disguise the imminent harrison m300 manual of the threads.

Screwcutting is provided through a well-supported, ball-thrust-equipped 28 mm 1. If you do not already have it, you can download it for free from Adobe.

Our purpose is harrison m300 manual provide information about vintage machinery that is generally difficult to locate. Harrison m300 manual lathe shown is fitted with the optional dual English and Metric micrometer dials. Electrical stop, start and reverse of the spindle is by a “third-rod” system controlled by a lever attached to, and moving with, the apron. The spindle, which runs in Gamet Super-precision opposed-thrust roller bearings, has a generous 38 mm 1. Rupert Powell Submission Date: Both the electrical isolator and coolant pump switch are mounted on the left-hand face of the stand – the latter a unit that is well made and supplied with a chip tray, splash-back and locking tool cupboard as standard.

I’ll ask in the Harrison Yahoo group also. Although harrison m300 manual 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 “motor-off” bar and electrical interlocking of the changewheel guard.

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

Best Wishes Erik harrison m300 manual While we do not charge for our service, it does cost us a considerable amount of money to bring all of this content to you. When I lose hope, I’ll yank it home as soon as possible.

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

That makes it hard to get anything, but I have to try. Induction hardened as standard, the bed can be ordered either straight or with a detachable gap in both manua able, in the latter case, to accept a piece of material up to mm 19″ in diameter and mm 4.