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The rotational speed of the lead screw, and hence the rate of feed of the cutting
tool, is determined by the gear configuration.
A Metric thread cutting kit, comprising a number of gear wheels, is available from
your Clarke dealer (see Accessories). A chart, on the headstock, indicates the
gear configuration for various thread sizes. The procedure for changing the gears is
given in the literature accompanying the Thread Cutting Kit.
THE TAILSTOCK
The Tailstock may be moved along the bed to any desired position and is secured
in position by the two hex socket head bolts at its base. The Tailstock Spindle has an
internal No.1 Morse taper for use with a Revolving Centre, a Wood turning centre or
Drill Chuck......all available from your Clarke dealer. (See Accessories).
THE SADDLE
The Saddle carries the Cross Slide on to which the tool post is mounted. The saddle,
and therefore the tool, may be driven by the Leadscrew, in a forward or reverse
direction.
The position of the tool is effected by turning the cross-slide feed handle, which
moves it across the lathe, or the Saddle Feed Handle which moves it longitudinally.
The tool post carries hex socket head screws which are used to secure a cutting
tool.
The tool post is rotated by slackening the Hex socket head bolt on its top, sufficient
for the post to be lifted slightly and then turned to the desired position.
ALWAYS ensure the post, and hence the tool, is secured by screwing down the bolt
firmly before attempting to cut.
THE MOTOR
It is not recommended that you dis-assemble the motor. Brushes may be replaced
as described under 'Maintenance'. For all other servicing and repairs, please
contact your Clarke dealer.
The motor is fitted with a Thermal Overload. Should the motor overheat for any
reason, the overload will intervene, shutting off the machine. Allow at least 5 minutes
for the motor to cool before proceeding.
See notes on 'Simple Turning', for how to start and stop the lathe.
MOTOR OVERLOAD
Should the motor be overloaded for any reason,a trip will operate, thereby shutting
down the motor, indicated by the warning light on the front panel, illuminating.
Switch OFF according to the instructions given in this handbook, and switch ON
again to continue working. To prevent a reoccurrance, reduce feed rate, or depth
of cut so as to lower the load on the motor.
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