9
(Checks before starting/Cutting pipe)
Getting Ready
8. Checks before starting
1. Turn on the machine to set the main shaft in motion. (
Fig. 14)
- Check there are no abnormal sounds or odours coming from the motor.
- Check the pipe you installed does not vibrate abnormally. If it does,
install it again.
- Check that cutting oil flows as it should from the die head.
Confirm that there is at least 1 liter of cutting oil in the tank.
(tank capacity:1.3L)
2. Allow the machine to rotate without any load for several minutes.
- Check the motor does not become abnormally hot, etc.
3. Turn the machine off and allow it to stop rotating.
- Check that the motor stops rotating right away.
The unit uses a motor equipped with brakes for improved safety.
Make sure you read and understand the points below relating to
the use and performance of the brake system.
Carry out the following checks before starting to cut or thread pipes. Should any problems arise, refer to "Troubleshooting"
at the end of this manual and follow the appropriate instructions. Continuing to use the machine when a problem has
arisen can lead to accident or injury.
Fig. 14
Cam
switch
WARNING
ON
9. Cutting pipe
- Raise the die head and reamer.
- Position the pipe so that it is ready for cutting and fasten the pipe
securely with the hammer chuck.
- Open the pipe cutter wider than the diameter of the pipe, lower it into
position and turn the cutter handle, bringing the cutter close to the
position where the blade and roller lightly press against the pipe.
- Switch the machine on and turn the cutter handle up to 1/2 a turn
for each rotation of the pipe. (Fig. 15)
*Note: If the cutter handle is turned too quickly, it will affect the
shape and finish of the thread.
Be sure to position the cutter correctly before the pipe starts rotating.
If it is not in the correct position it could damage the pipe or the
machine.
Fig. 15
Cutter handle
CAUTION
Hammer
chuck
If the end of the pipe is slanted (Fig. 16-B) or has steps in it (Fig. 16-C),
it is not only impossible to make a perfect thread, but may even
result in damage to the machine, accident or injury.
Special precautions when you cut a pipe with another cutter
We strongly recommend that only the pipe cutter attached to the machine
be used to cut pipes.
If another cutter is used, ensure that the pipe end is at right angles to
the axis of the pipe. (Fig. 16-A)
If the pipe is not square on, as in Fig. 16-B and C, threads may be defective.
B and C may be the result of the following:
Fig. 16-B
- The bearing or chucking of the cutter is unstable.
- When a grinder is used with excessive force (especially in the case
of large diameter pipes.)
- When the pipe is engaged at an angle when cutting.
Fig. 16C
- When you have cut a large diameter pipe 2 or 3 times with a small
grinder.
CAUTION
A
B
C
Fig. 16
OK
