REMS MSG 25 EE Instrucciones De Servicio página 10

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controller (thermostat) in the device switches off the power supply to the heating
element. The red temperature indicator lamp goes out. No welding may be
done when the red temperature indicator lamp is alight.
The temperature of the heating element sleeve welding unit is preset to the
average welding temperature for PP pipes (260°C). It may be necessary to
correct this welding temperature depending on the pipe material. The manu-
facturer information for pipe or mouldings must be observed accordingly! Ambient
corrections. Therefore the temperature of the heating tools (heating spigot and
heating socket) should be checked, for example, with a quick display temper-
ature measuring instrument for surface measurements with a contact surface
of approx. 10 mm. The temperature can be corrected if necessary by turning
the temperature setting screw (8). If the wrong temperature is set, please note
that the heating element may only be used 10 minutes after reaching he nominal
temperature.
3. Operation
the suitability of the machines and devices used as well as the compliance with
welding regulations. The weld can be tested by non-destructive or destructive
methods. Welding work must be supervised. The type and scope of supervision
must be agreed between he contract parties. It is recommended to document
the procedure data in welding logs and on data media. Within the scope of
quality assurance, it is recommended to make and test sample welds under
the given working conditions before beginning and during the welding work.
3.1. Description of process
In welding wi h the sleeve welder, the pipe and sleeve are welded together
overlapping. The end of the pipe and moulded sleeve are heated to welding
temperature by means of the welding tool (spigot and socket), then welded
socket respectively in such a way that a build-up of pressure takes place in the
joint when the two components are mated (Fig. 4).
the heated spigot and socket are of different sizes. In the case of method A,
no provision is made for any mechanical pre-processing of the pipe, while in
the case of method B, the pipe is mechanically stripped. The REMS spigot and
is required.
Sleeve weldings can be made manually on pipes up to and including diameters
of 50 mm. With larger pipes, a suitable welding machine must be used because
of the increasing forces required to achieve he joint.
3.2. Preparations for welding
Take care to observe the information issued by the manufacturer of the pipes
a REMS RAS pipe cutter (see 1.2.) or REMS ROS pipe shears (see 1.2.). In
addi tion, the end of the pipe should be chamfered to facilitate insertion into the
socket (Fig. 6). This process should be performed with the REMS RAG pipe
chamfering unit (see 1.2.). Immediately before welding, the end of the pipe and
interior of the sleeve and, if necessary, the heating spigot and socket should
be cleaned with non-adherent paper or a non-fraying cloth and spirit or indus-
trial alcohol. In particular, no remnants of plas ic must be left adhering to the
coating on the heating spigot or socket. When cleaning the welding tools, take
care to ensure without fail that their anti-adhesive coating is not damaged by
tools. The welding surfaces must not be touched again before welding takes
place.
5. Behaviour in the event of faults
5.1. Fault: Heating element sleeve welding unit does not heat up.
Mains lead defective.
Device defective.
5.2. Fault: Plastic residue sticks to the heating tools (5).
Heating tools soiled.
Anti-adhesive coating damaged.
5.3. Fault:
Wrong welding temperature set (only in EE).
Device defective.
Only touch the device on the handle (3) when it is hot! Never touch the
3.3. Welding process stages
3.3.1. Heating-up
For the heating-up process, the pipe and moulding are pushed axially onto the
welding tools in a continuous movement until they reach the stop or the marking
During the heating process, heat penetrates into the joint faces and brings them
up to welding temperature.
After the heating process, he pipe and moulding are pulled away from the
welding tools in a series of jerks and pushed together, without twisting, as far
exceeded, otherwise the joint faces will cool to an impermissible extent.
3.3.3. Setting
The joint must be allowed to set (i.e. held) in accordance with the data given
in Fig. 5, column 4.
The joint must not be subjected to the stresses imposed by further pipe-laying
operations until the cooling-off period (Fig. 5, column 5) has expired.
4. Maintenance
when it is hot! The heating element (4), the heating tools (5) as well as the
metal parts between the heating element (4) and the plastic handle (3) reach
operating temperatures of up to 300°C. Touching these parts can cause severe
burns.
4.1. Maintenance
WARNING
The anti-adhesive coating of the heating tools (5) must be cleaned with lint-free
paper or cloth or technical alcohol before every welding process. Plastic residue
stuck to the heating tools must be removed immediately with lint-free paper or
cloth or technical alcohol. Make absolutely certain that the an i-adhesive coa ing
of the heating tools is not damaged by the use of tools. The use of white spirit
to clean the heating tools can lead to a diminished quality of the weld due to
the water that it contains.
Clean plastic parts (e g. housing) only with the REMS CleanM machine cleaner
(Art. No. 140119) or a mild soap and a damp cloth. Do not use household
cleaners These often contain chemicals which can damage the plastic parts.
Never use petrol, turpentine, thinner or similar products to clean plastic parts.
Make sure that liquids never get inside the electrical device. Never immerse
the electric device in liquid.
4.2. lnspection/repairs
WARNING
customer service workshop.
Have it checked/repaired by an authorised REMS customer service workshop.
Clean the heating tools, see 4.1.
Replace damaged heating tools with new ones.
Manufacturer information of pipes and mouldings must be observed. Set the
temperature at the temperature setting screw (8) (see 2.6.).
Have it checked/repaired by an authorised REMS customer service workshop.
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