Changing The Roller Assembly; Important - Rothenberger ROGROOVER 1 - 12 Instrucciones De Uso

3.8

Changing the roller assembly

Because the geometry of the set of rollers determines the dimensions of the grooves, specific
sets of rollers are required (see Table 1) to groove the different pipe sizes, from 1" up to 12".
Before making the change, make sure that the grooving machine is unplugged, and follow these
steps:
The three upper rollers are incorporated into the upper head of the machine. To select the ap-
propriate roller, remove the main shaft (7) and rotate the head until you have the roller of the
correct size aligned with the groove of the drive shaft. Insert the shaft (7) making sure it is cor-
rectly fitted and has not been forced during the mounting operation.
The lower drive shaft has to be changed in a different way for a roller of between 1" and 11/2"
than for the other sizes (2" - 6" and 8" - 12").
 Roller of 1" to 11/2". This is secured by 6 screws (4). To assemble, insert it into the housing
smoothly, checking that the groove is aligned with the upper roller. Fit the 6 screws (4) and
tighten them.
IMPORTANT: check that after mounting the groove is still aligned with the upper roller.
 Rollers of 2" to 6" and 8" to 12". These are mounted over the centre screw located on the
same shaft, and so are fixed by the bolt (1) and nut (2).
 We remove the nut (2), and turn the shaft (1) anticlockwise, with the appropriate tool. We ro-
tate using the 10x10 square drive until the shaft is completely removed (1) along with the
roller (3).
We insert the new roller (3) into its housing as far as it will go, and insert the shaft (1), turning it
clockwise until it is well secured. Fit the nut (2) until it stops against the roller and tighten to se-
cure it. Check the alignment of the groove with the upper roller.
Alignment and checking of position "A" (see table).
When we want to align the upper roller with the groove of the lower shaft or the drive shaft we
proceed as follows:
Work without any pipes mounted in the groover!
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 Position the tube in such a way that it is levelled
and makes contact with the lathe screw edge.
 Exert downstream pressure on the pump han-
dle to move the upper roller until making con-
tact with the tube.
 Turn the wheel to move the stabiliser roller
downwards until making contact with the outer
diameter of the tube. Once the stabiliser has
made contact with the outer diameter of the
tube, tighten it with another full turn and fix the
slide locking screw to reduce the vibration.
ENGLISH