Rothenberger 53200 Instrucciones De Uso página 14

Operation
Î Push the hook end of the pump lever onto the pressure relief screw and relieve the pressure present if
necessary by turning to the left (max. 1-2 turns).
Î Now insert the hook end of the pump lever into the pumping device and pump the hydraulic fluid a
few time through to empty by moving the pump lever up and down.
Î Push the hook end of the pump lever onto the pressure relief screw and turn it to the right until the
pressure relief valve is closed.
Î Now insert the hook end of the pump lever into the pumping device and build up the pressure
through moving the pump lever up and down in the hydraulic cylinder until the overpressure valve
reacts.
Î Unfasten the counter pressure screws with the ratchet end of the pump lever and turn this upwards as
necessary, if necessary completely, out of the threaded block.
Î Push the hook end of the pump lever onto the pressure relief screw and relieve the pressure present if
necessary by turning to the left (max. 1-2 turns) until the hydraulic cylinder moves upwards.
Make sure that you do not crush your fingers/hands.
Ensure that the released counter pressure screws do not get crushed on the frame above.
Î You must turn the counter pressure screw to the right again to end moving up of the upper squeezing
pipe and close the pressure relief valve.
Î If the upper squeezing pipe has come to a standstill, pull the lower squeezing pipe out of the frame
and lift the squeezing device over the pipe.
Î Subsequently move the lower squeezing pipe into the frame again until it projects out equally on both
sides and therefore allows the spacers to be put on fully.
Ensure that the pipe lies exactly in the middle in the device otherwise the wall of the pipe can be
pressed against the frame for large external pipe diameters and get damaged.
Î Check whether spacers mounted on the upper squeezing pipe are aligned with reference to the SDR
stage and the set external pipe diameter, with the pipe to be squeezed. Change the spacers if neces-
sary.
The spacers can be turned freely on the screw axes.
There is a sprung ball locking device on both sides of the upper squeezing pipe.
There is an indentation on the rear of the spacers behind every diameter specification.
If the spacers are turned the ball locking device engages for every diameter specification and prevents
unwanted turning of the spacers during the squeezing process.
If the ball locking device does not function anymore due to dirt/damage you must monitor correct seating
of the spacers for the squeezing process and correct it if necessary.
Be careful with your fingers; there is a risk of injury occurring for an incorrect intervention.
Î Now insert the hook end of the pump lever into the pumping device and evenly
and slowly pump the upper squeezing pipe downwards until both spacers lie
completely on the lower squeezing pipe.
If the upper squeezing pipe cannot be pumped low enough, despite correct adjust-
ments, it may be that the spindle screw is not unscrewed enough out of the cylinder
piston. Move the upper squeezing pipe up again a little, hold the cylinder piston
firmly and turn it out a bit further using both hands.
Only take hold of the cylinder piston when the upper squeezing pipe has come to a standstill. You
can otherwise crush the hands/fingers.
14 ENGLISH