SAINT-GOBAIN OneBond OSP310 Instrucciones De Uso página 12

4.2.1 In the case of model OSP310
• Disconnect or shut o the compressed air supply.
• Turn the cartridge support tube anti-clockwise to remove ( g.1)
• Insert the cartridge in its housing
• Push the cartridge fully down into position ( g. 2)
• Re-tighten the cartridge support tube until it closes. ( g. 3).
5 - PRELIMINARY CHECKS BEFORE USE
Procedure to ensure no in ltration of air in the material; to be performed before and after work:
Unscrew the spray cap; close the handwheel (pos. 9) and extrude a small bead of material measuring approx. 150-200 mm,
checking that there is no in ltration of air during extrusion; if air is present, still attempt to continue with extrusion through to
the end: if air bubbles persist, this means that the cartridge is defective; if air in ltration is minimal the gun may only be used
for spraying as in this mode the air bubbles are not visible. Note that at the end of work, the cartridge causing in ltrations must
be replaced with a new version, and the above check must be repeated. When not used, it is essential that the gun does not still
contain material and that there is no risk of air in ltration.
There are two additional methods to check if any air has in ltrated the gun or cartridge itself; rst disconnect the gun from the
air supply, and ensure that pressure in the gun is completely discharged, by opening the jet adjustment handwheel (pos. 9) and
activate the rst trigger stroke:
1) Proceed in the same way as to insert a new cartridge, unscrewing the cartridge (pos.21) from the front base (pos.8), and if a
small quantity of material comes out of the cartridge, this is a sign that there are air bubbles inside, which under expansion
cause a small amount of material to be released.
2) Detach the gun and discharge the air as described above, then remove the cap (pos. 2 or 7), and ensure that on activation of
the trigger, both on the rst and second time, no material is delivered from the front nozzle, caused by the presence of compres-
sed air in the gun or the cartridge itself.
If one of these tests give positive results, replace the cartridge, or use until empty, then replace with a new version. If the gun
is blocked, it must be cleaned by dissembling and cleaning all lines where material has hardened inside, taking care on
reassembly that all threads are sealed with suitable thread locking compound, followed by a test to ensure that the gun is 100%
airtight. This operation should only be performed by skilled personnel, with the maximum care to avoid damage to the gun.
If not adequately skilled, contact the retailer for assistance.
Air in ltration can be caused by the following:
1) In ltrations of air between the rear part and cartridge itself; in this case the cartridge is faulty and must be replaced.
The gun trigger activates with a 2-stroke principle. The rst activation delivers air via the jet adjustment handwheel
(pos. 9) which obviously must be open, while the second stroke also activates material delivery. We therefore recommend
treating the part by testing the spray on a sample surface, to obtain the required e ect, and once this is achieved to continue
with the process.
When the spray cap is tted onto the gun, ensure that the jet adjustment handwheel is open and air is delivered; if the
handwheel is closed, the spray cap may seize completely.
The special threaded cap means that the gun has both spray and extrusion functions. Ensure that the handwheel is closed, to
ensure no air in the bead; the compressed air supply only serves for the extrusion of material; the only setting is as speci ed in
point 7, for product quantity only.
During relative short work breaks, leave the cartridge (not expired) in the gun; on re-use repeat the check for any in ltration
of air. In the case of longer breaks, the cartridge should be removed and the gun should be cleaned, together with all lines to
remove any residual material.
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