Rothenberger RO-GROOVER Instrucciones De Uso página 26

Adjustment of the knurling depth
Given the variable characteristics of the tubes, a test
groove must always be performed when switching on
the machine or if there is a change of tube for one of
a different size.
1) Place the pipe on the drive shaft. Pump until the
upper roller touches the pipe. DO NOT APPLY
FORCE.
2) Turn the nut (3) until it makes contact with the
surface (4).
3) Unscrew the nut (3) in an anticlockwise direction
until it has been withdrawn the distance of the
groove depth "C" (see table). Each division of the
nut corresponds to 0.1 mm and a full turn with a
groove depth of 2.5 mm.
4) Start up the machine, close the cylinder shut-off
valve and start pumping. Do not pump continuously,
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.
26
MACHINE PREPARATION
3
4
ENGLISH