Rothenberger RO-GROOVER Instrucciones De Uso página 28

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 appropriate 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 correctly 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 1
other sizes (2" - 6" and 8" - 12").
1/2
1. Roller of 1" to 1
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.
2. 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 rotate
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 secure 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:
1) Work without any pipes mounted in the groover.
2) Select a roller and a drive shaft of the same size.
3) Lower the upper roller until it almost touches the
drive shaft at the point where its diameter is at its
greatest.
4) Loosen the two screws (8) of the head. It is not
necessary to remove them.
5) Using the screw (5), turning this in both directions,
we move the head forwards or backwards
depending on the direction of rotation. Adjust this
until it is perfectly aligned.
28
OPERATION
1/2
" than for the
". This is secured by 6 screws (4).
6) Tighten the screws (8) again.
ENGLISH