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GB
Operationg Guidelines
Threading instructions
Setting the Thread Size
1. Fit the appropriate die head as shown in Fig. 20.
2. Push the cam-plate up and set the auto-open pin in
position.
3. Loosen the lever nut and set the index line to the
desired thread size and tighten firmly.
4. Push the cam plate handle forward to set the auto-
open lever then set the thread size by fitting the
lever nut to the appropriate position.
Lever nut
Size plate
Loosen
Cam plate
Push
Cam plate
handle
Threading
5. Switch on the machine and the thread cutting oil
will automatically flow out from the die head.
6. Turn the carriage handle clockwise until the
dies have engaged the pipe for 3 or 4 threads.
From this point the carriage handle may be
released. A standard taper thread will then be cut
automatically.
Tighten
Auto-open lever
Fig. 20
Fig. 21
7. As the dies travel along the pipe, the end of the
pipe comes into contact with and pushes the
auto-open lever C out of its groove to release the
dies.(1)(2)
8. Once threading has been completed, switch OFF,
and turn the carriage handle to the left. Retract
the die head from the pipe.
2
Precautions for threading
1. As the dies come into contact with the pipe, the
handle should be turned with gradually increasing
strength until the dies are biting firmly. After the dies
fully engage the pipe they will travel smoothly by
themselves, but optimum cutting will be assured if
the handle is turned with slight pressure to keep pace
with die movement.
If the machine suddenly stops during threading,
turn off immediately (a delay will result in the motor
burning up)
34
Auto open lever
1
Auto open lever C
CAUTION
Carriage
handle
Fig. 22
Fig. 23
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