17
PREPARATION FOR USE
A. SIMPLE TURNING
The following notes are guidelines as to how to set up the lathe in order to carry out
a simple turning operation.
ALWAYS plan your work. Have drawings or a plan on hand together with any
measuring instruments you may require, such as micrometers/verniers/callipers etc.
1. Set Spindle speed
Determine the speed required for the job in hand,
and, consulting the chart on the inside of the running
gear cover door, duplicated in Fig.15, arrange the
drive belts in order to achieve that speed.
Ensure the drive belts are correctly tensioned.
Fig.15
C160
D250
E400
F630
G 1000
H 1600
Belt
Position
Speed
RPM
NOTE: Positions A & B are
those at the Mill Head.
If two belts are used
(positions C, D and E), then
tension the Idler pulley first
by slackening the securing
nut at the rear of the
casing and applying
tension so that the belt
may be deflected by
approx. one half inch in
the middle of its run, when
using reasonable pressure.
The Motor pulley is tensioned by adjusting the tensioner
on the motor. Tension should be similar the that provided
by the Idler Pulley.
Take care when positioning the belts, that they do not
twist.
It is strongly recommended that the Idler pulley be
removed completely for configurations F, G and H.
Ensure the Dog Clutch is pulled out fully, then turn it by
hand to ensure the drive is transmitted to the headstock
spindle.
Fig.16
Dog Clutch pulled OUT
for Lathe Spindle operation
Dog Clutch pushed IN
for Lathe Mill Head operation
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