Ritmo UP 125 Manual De Instrucciones Y Mantenimiento página 16

Some fittings may require preheating of the welding area on the pipe for a more
EN
homogeneous coupling.
Place the Heater insertion rod between the hot iron and the fitting secured to
the chuck. Push the iron towards the pipe. If necessary, lower the chuck to push
the spigot into the pipe bore.
If necessary, turn the chuck to align the fitting with the die.
16
Do not use the lower handle to turn the chuck, in order not to loosen the jaws
on the fitting.
At the end of the heating phase, quickly lift the fitting to extract the iron.