Operating Chucks, Prong Mandrel, Live Centre; Clamping The Workpiece; Tool Rest - steinert KM 3100 SE Operating Instructions Manual

OPERATING CHUCKS, PRONG MANDREL AND LIVE CENTRE
The chucks are mounted on the external thread M 33 of the spindle, which is having a centering collar

Switch off spindle motor

lock spindle with fixing pin (below of spindle nose)

screw on the chuck, surface of thread must be close and plan ! to the centering collar, fasten it properly
handtight by using the pin

Caution: remove the pin before switching on spindle

Do not use spindle motor power to fasten your chuck: you might get problems unscrewing the
chuck from spindle

If direction of spindle is changed
running off from spindle with the security ring

security nut for chuck seat: option
The prong mandrel on spindle/headstock is knocked out with the long supplied bar
The live centre on tailstock comes out automatically :
Loosen the clamping lever on top of quill
turn handwheel until centre is released from quill, hold centre by hand to avoid falling out

CLAMPING THE WORKPIECE

Turning between centres with the 4-prong-mandrel and live centre:
Roughly centre the workpiece at both ends outside the lathe (make bearings last longer)
that markings are visible.
Press the driver prongs firmly into the workpiece by turning the hand wheel.
Tighten the set screws for the tail stock and the quill.
Overhung turning with chucks
Changing of spindle direction may not be used, otherwise the security system
to fix the chuck against running off from the spindle must be ordered (option)
Cone-shaped chuck:
Heureka-chuck:
Face plate:
Disc-chuck:
Jaw-chucks:
div.chucks

TOOL REST


move toolrest close to the workpiece , correct position from time to time if workpiece is turned+
to smaller dimension

we recommend you to turn the spindle with clamped workpiece before by hand to watch if the
Workpiece does not touch the tool rest

after checking true running, switch on spindle motor

move and correct tool rest position only if the spindle motor is switched off
OUTRIGGER=EXTERNAL TURNING ATTACHMENT (Option)
instruction and photo is supplied with the outrigger
.
to righthanded rotation secure the chuck against
Taper turn the workpiece to suit the chuck diameter and drive it in with heavy blows.
Drive the face of the unmachined workpiece into the chuck so that the sharp edge penetrates
approx. 10-15 mm . Maximum work length 200 mm. Most suitable for soft wood.
Secure the wooden discs with wooden screws through the bores provided.
Screw the workpiece into the wooden screw (if necessary, drill core hole. Wooden discs can be
used to limit the depth of penetratin of the screw).
Increased risk to operator with jaws which project beyond the chuck body. Remove the tightening
key before starting the machine.
i.e. Nova Chuck, Super Nova etc. see separate operating manual