Rothenberger ROWELD P 160 SANILINE: ENGLISH 15

For one-sided milling, turn the stop on the underside of the milling machine to the side that is

NOT to be worked on.

 After the front sides are trimmed flat, which can be recognized by a uniform and unbroken

chip, slowly move the pipes ends apart. Unlock the trimmer (1) by pulling out the ring (7) and

swivel it.

 Move workpieces together and check whether the welded surfaces are flat. If this is not the

case, trimming must be repeated.

The axial offset between the workpieces must not be greater than 10% of the wall thickness and

the gap between the flat surfaces must not be greater than 0.5 mm (according to DVS). If this is

not the case, adjust with the help of the clamping screws and pipe supports and repeat trimming.

ENGLISH 15

3.2.3 Welding

 Swivel the heating element (2) between the two workpieces.

 Bring the pipe ends together, put force to the grip bar (6) and stop the driveshaft by pulling

the clamping lever (5).

 As soon as the required bead height is reached evenly over the entire circumference at the

pipe ends, disengage the clamping lever (5), reduce the force to the corresponding preheat-

ing force (near 0) and screw up the clamping lever (5) tightly again. It must be ensured that

the workpiece ends abut evenly to the heating plate.

 After the preheating time is over, disengage clamping lever (5) move workpieces apart,

swivel out the heating element (2) and move the workpiece ends together again. While do-

ing this, increase the corresponding joining force as linearly as possible until the nominal

force is reached (see the accompanying book for welding parameters) and pull the clamping

lever (5). The joining force must be maintained during the entire cooling period.

 At the end of the cooling period, disengage the clamping lever (5) and release the spring via

the grip bar. Unclamp and take out the welded tube sections.

All welding parameters can be found in the enclosed welding tables.

3.2.4 Putting out of operation

 Unplug the trimmer and heating element.

 Swivel trimmer into the space between the main clamps.

 Wind up flex.

 Insert the heating element into the mounting provided in the underframe.

 Pull the knob (11) and swing the machine downward until the locking bolts have clicked in.

3.3 General requirements

As weather and ambient conditions can seriously effect welding procedures and joints, it is es-

sential to duly observe national welding guidelines and ordinances, e. g. DVS Guideline 2207,

Sections 1, 11 and 15.

Welding requires continuous and due supervision and monitoring!

3.4 Important information on welding parameters

For welding parameters such as temperature, pressure and time, consult your national welding

guidelines and ordinances, e. g. DVS Guideline 2207, Sections 1, 11 and 15.

Ordering: DVS Media GmbH, Aachener Str. 172, 40223 Düsseldorf

Postfach 10 19 65, 40010 Düsseldorf, Tel.: +49 (0) 211 / 15 91 – 0

Email: media@dvs-hg.de internet: www.dvs-media.info

In the event of doubt, consult the pipe manufacturer for material-specific welding parameters.

The welding parameters specified in the welding tables are strictly reference values. ROTHEN-

BERGER cannot assume any liability for their accuracy or completeness!

4 Care and maintenance

To ensure that the welding machine functions properly, observe the following maintenance rec-

ommendations:

 Keep the guide rods for the skids or for the heating element holder and milling unit free of

dirt.

 The electric drives of the trimmer and heating element must be operated only with the volt-

age stated on the type plate.

 To achieve perfect welding results, it is essential to keep the heating plate clean. If the sur-

face is damaged or shows signs of erosion, the surface must be recoated or replaced. Mate-

rial residues on the heating plate surface reduces the non-sticking properties of the coating.

Remove all residues with non-linting paper and alcohol (heating plate must be cool!).

 The trimmer is equipped with two double-sided ground knives. When cutting capacity starts

decreasing, the knives can be turned over or replaced by new ones.

 It must always be ensured that the pipe or workpiece ends to be machined, especially the

face surfaces, are free of soiling because otherwise the service life of the knives will be

shortened.

16 ENGLISH

4.1 Machine and tool care

(Follow the maintenance instructions in item 4!)

Sharp and clean tools produce better work results and are safer.

Replace blunt, broken or lost parts immediately. Check whether the accessories are securely

connected to the machine.

Use only original spare parts from the manufacturer for maintenance work. Repairs must be car-

ried out only by professionally qualified personnel.

Disconnect the machine from the mains when it is not in use, prior to care and maintenance

work and before changing accessory parts.

Prior to reconnection to the mains, it must be ensured that the machine and the accessory tools

are switched off.

When extension cables are used, they must be checked for their safety and operativeness. Only

cables approved for outdoor use must be used.

Tools and machines whose housing or handles, especially those made of plastic, are cracked or

warped must not be used.

Dirt and moisture in such cracks conduct electric current. This can lead to an electric shock if the

insulation is damaged in the tools or in the machine.

Note: Furthermore, we refer to the accident prevention regulations.