Operation Of The Grooving Machine; Knurling With Stabiliser - Rothenberger ROGROOVER 1 - 12 Instrucciones De Uso

 Start up the machine, close the cylinder shut-off valve and start pumping. Do not pump con-
tinuously, but allow the pipe to complete three rotations for each pumping action. When the
adjusting nut touches the hydraulic cylinder stop pumping and do not stop the machine until
the pipe has rotated three times. Stop the machine, open the cylinder shut-off valve, so that
the hydraulic cylinder withdraws, and remove the pipe.
3.6

Operation of the grooving machine

The thickness of the tube wall must not exceed the aforementioned maxi-
mums!
 With the cylinder valve closed, turning clockwise, press the switch and run the machine idle
to ensure that it operates correctly.
 Open the cylinder valve turning anticlockwise allowing the upper roller to release the tube.
Check the diameter of the groove prior to proceeding with the subsequent grooves.
The groove diameter must be measured using a diameter tape. In order to reduce the groove
diameter (increase the depth of the groove), turn the depth set nut one mark to the left. In order
to increase the groove diameter (decrease the depth of the groove), turn the depth set nut for
one mark to the right. Once the set nut has been turned fix its position by fastening the adjusting
locknut.
When threading long tubes, use a stabiliser for the tube to ensure that the tube does not vibrate
due to warping as it rotates, and to ensure that the machine does not become unstable due to
the weight of the tube.
If you do not use a stabiliser for the tube it may prove difficult to produce proper grooves, or the
machine may be damaged and result in accidents or injury.
3.7

Knurling with stabiliser

Do not use the stabiliser with tubes of 200 mm or less. Your finger could be
crushed by the rotating parts!
Help to solve the problem of brusque swinging during the knurling process due to roughness
and poor grooving in large steel tubes more than (6").
Once the stabiliser has been adjusted for a specific diameter and wall thickness it does not have
to be readjusted.
Exert pressure downstream quickly on the

pump handle to make the initial groove. Contin-
ue, however slowly, allowing that the tube
makes one full turn for each complete stroke of
the pump handle.
 If the tube starts to come out of the lathe screw,
stop the machine and check the "tube assem-
bly" procedures.
When the depth set nut makes contact with the

machine casing allow the tube to make two full
turns to level the depth of the groove.
ENGLISH 21