4
During Operation
Cleaning and Maintenance
Replacement of Nozzles
Applying Hot-Melt
The quantity to be applied is determined by pulling the
trigger: the more you pull the more glue is dispensed.
When the feeding of glue sticks is stopped, the ball valve
integrated in the nozzle will close, thus preventing liquid
glue from leaking out.
When the glue is used up so that it stops flowing out
when the hand trigger is pressed, insert a new glue
stick.
Only use hotmelt that is suited to use with your
applicator. Please mind the respective working
temperature of the hotmelt (TR 500: approx. 115
200°C; TR 501: approx. 195°C; TR 502, TR 505, 101:
approx. 190 200°C)*. This temperature is indicated in
the technical datasheet of the hot melt. This temperature
must not be exceeded, otherwise the glue may coke in
the glue applicator. Hotmelts on a polyamide basis are
particularly sensitive. LowMelt hotmelts can only be
applied with the model TR 500 and the corresponding
temperature setting.
Having worked with some glue sticks, the glue gun
needs some time to reheat.
Never pull the trigger with force! If you feel resistance
when pulling the trigger, wait one or two minutes, so the
glue gun can melt the glue properly.
In case the nozzle is clogged or the hotmelt is not fully
melted, glue may flow out the glue stick inlet. Remove it
while the glue gun is lukewarm (approx. 40 °C). Do not
use any sharp or pointed tools.
The cable of the glue guns TR 500, 501 and 502 can be
removed for a short period of time. This enables the user
to apply glue to places that are difficult to access.
If the glue applicator isn't used for 30 minutes or more,
unplug it to preserve the hotmelt.
For your own safety: wear protective gloves and safety
goggles when you replace nozzles.
Always unplug the glue gun before replacing a nozzle!
Use heatresistant gloves or a thick cloth for changing a
nozzle. Do not use tools like a nipper!
Only replace nozzles when the glue applicator is warm
(instrument temperature 60 – 80 °C ) and empty.
Replacing a nozzle when the applicator is cold may
damage the equipment. Replacing the nozzle when the
applicator is too hot, causes liquid glue to flow out.
Warning: Risk of burning!
The melting range as well as the melting point of the
used glue may be taken from the technical datasheet of
the respective glue.
An overview of the current Reka nozzle range can be
found on page 6 of the operational manual.
Never fill soiled glue into the melting tank. If you observe
all advices given in the operating manual, the glue
applicator does normally not need cleaning. The glue
contained in the applicator will remelt and can be used
for gluing again.
If the applicator is used very often, we recommend
having it maintained regularly. For this, fix a date with our
service department.
* PTCdevices are subject to temperature variation
Always deposit the glue gun on the wire stand or the
respective plate destined for this purpose.
After unplugging the device, unprocessed hotmelt glue
will stay in the glue gun. The glue remaining in the
gun will remelt and can be used during next use.
