Sime Planet Dewy 60 BFR Manuel De Montage, D'utilisation Et D'entretien page 13

sdiction's authorities.
1. Assemble proper materials for job (pro-
per cement and applicator for the size of
piping system to be assembled).
2. Pipe must be cut as square as possible.
Use a hand saw and miter box or mecha-
nical saw. A diagonal cut reduces bonding
area in the most effective part of the
joint.
3. Plastic tubing cutters may also be used
for cutting plastic pipe; however, some
produce a raised bead at the end of the
pipe. This bead must be removed with a
file or reamer, as it will wipe the cement
away when pipe is inserted into the fit-
ting.
4. Remove all burrs from both the inside
and outside of the pipe with de-burring
tool. Failure to remove sharp edges can
result in a plowing effect on applied
cement when assembling the joint.
5. Remove dirt, grease and moisture. A tho-
rough wipe with a clean dry rag is usually
sufficient. (Moisture will retard cure and
dirt or grease can prevent adhesion).
6. Check pipe and fittings for dry fit before
cementing. For proper interference fit,
the pipe must go easily into the fitting
1/3 to 2/3 of the way. Should the dry fit
be outside this range, do not proceed
and contact the System 636 supplier for
further instruction.
7. Use the right applicator for the size of
pipe or fittings being joined. The applica-
tor size should be equal to 1/2 the pipe
diameter. It is important that a satisfac-
tory size applicator be used to help ensu-
re that sufficient layers of cement are
applied.
8. Priming; the purpose of a primer is to
penetrate and soften the surfaces so
they can fuse together.
The proper use of System 636 primer
and checking its softening effect provi-
des assurance that the surfaces are pre-
pared for fusion in a wide variety of con-
ditions.
Check the penetration or softening on a
piece of scrap before you start the instal-
lation or if the weather changes during
the day. Using a knife or other sharp
object, drag the edge over the coated
surface. Proper penetration has been
made if you can scratch or scrape a few
thousandths of the primed surfaces
away. Because weather conditions do
affect priming and cementing action,
repeated applications to either or both
surfaces may be necessary. In cold
weather more time is required for pro-
per penetration.
9. Using the correct applicator (as outlined
in step #7), aggressively work the primer
into fitting socket, keeping the surface
and applicator wet until the surface has
been softened. More applications may be
needed for hard surfaces and cold
weather conditions. Re-dip the applicator
in primer as required. When the surface
is primed, remove any puddles of primer
from the socket.
10. Next, aggressively work the primer on
to the end of the pipe to a point 1/2"
(13 mm) beyond the depth of the fitting
socket.
11. A second application of primer in the
socket is recommended.
12. Immediately and while the surfaces are
still wet, apply the appropriate System
636 cement.
ENG
FR
13