Identification And Description Of The Parts - Mac Afric BV20BL Operation Manual

Identification and Description of the parts

Please take some time to identify the various parts of your machine so that you are familiar
with the terminology we will use to enable you to set up and operate your Lathe safety and
correctly.
Headstock The 'engine block' of the lathe, supports the motor, the spindle, contains
the gearbox for the spindle speed selection, mount the change gears
and the driven end of the lead screw.
Rack (unseen) The rack is fixed on the underside of the front rail of the lathe bed, it is
permanently engaged with the saddle control wheel pinion.
Tailstock Large casting that mounts the tailstock barrel, it is moved on and
clamped to the lathe bed to allow the tailstock barrel to be moved to the
proximity of the work piece. It can be offset from the central axis of the
lathe to allow for taper turning between centers.
Lead screw / A formed mental plate that covers and protects the leadscrew and the
Rack guard rack.
Tool Post A four sided tool post. Each tool position has 3 securing bolts to clamp
the tool in place. The tool post is located on a central pivot mounted on
the top of the compound slide. It has a four position 'click' locator, that
locates it to its major axis, but it can be held at any angle by the tool post
locking clamp.
Leadscrew The leadscrew, through the various gear trains available, rotates at a
(unseen) selected ratio to the spindle to enable the various screw threads to be
cut, or to provide a feed rate for the saddle when auto feed is selected.
Chuck A clear acetate cover mounted on a pivot bar on the rear top front face of
Safety cover the headstock, it can be tipped out of the way to access the chuck when
it is stationary, and repositioned over the chuck during operation.
Tool post cover Fitted to compound slide it is there to provide protection from "flying
swarf" whilst turning between centers.
Motor Single phase 230V 50Hz motor. 1H.P.
Chuck The chuck mounting flanges is integral with the spindle and mounts all
mounting back the material carriers, (chucks, faceplate etc.), it is bored with a No.3
plate Morse taper to accept the headstock centre. The boring is then carried
through the complete length of the spindle (20mm clear) to allow long
lengths of round bar to be machined. Because of the limited space
between the headstock and the chuck mounting flange a shortened Allen
key has been supplied to allow tightening of the chuck securing bolts.
Tailstock barrel Small 'swing' lever that locks the barrel in place once it has been moved
lock into the required position.
Tailstock drive This engineer's wheel and handle controls the movement of the tailstock
handle barrel, backwards and forward. It has a graduated ring (thimble)
mounted on the neck of the handle so that the amount of movement can
be monitored.
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