3M PG II Manual Del Propietário página 3

General Information
The 3M™ Hot Melt Applicator PG II is designed to be a simple,
reliable tool for dispensing 3M™ Hot Melt Adhesive Sticks. It
is self-contained and hand held, designed for multi-station or
intermittent manual adhesive application.
The 3M Hot Melt Applicator PG II uses electric heat to melt
the adhesive, and air pressure to deliver the adhesive. Adhesive
temperature is automatically maintained by a fixed thermostat on
the heat block. The system is further protected by a thermal cutout
(TCO), which acts as a thermal fuse.
When trigger (1) is pulled, the variable regulator (2) allows air
pressure into rear of the Speedloader stick feed (3). Air pushes the
piston (4), which advances adhesive stick through the applicator.
As adhesive advances, it passes through hard plastic insulating
sleeve (5) which acts as thermal barrier to keep molten adhesive
and heat in forward portion of the applicator. The rest of the
applicator stays cool.
© 3M 2020.
READ INSTRUCTIONS THOROUGHLY BEFORE OPERATING OR PERFORMING ANY
MAINTENANCE ON 3M HOT MELT APPLICATOR PG II.
As adhesive advances into the heat block, it is melted and liquified.
With pressure from the solid adhesive sticks and the piston, the
liquid adhesive is forced out the tip of the applicator through
the nozzle valve (6). When the trigger is released, air pressure is
released from the rear of the loading chamber. Pressure on the
molten adhesive in the front of the applicator is then also relieved.
Spring tension in the nozzle valve retracts the valve, neatly cutting
off the adhesive flow. The trigger of the 3M Hot Melt Applicator
PG II can be feathered. The operator can pull the trigger back part
way for a small amount of adhesive or pull the trigger back all the
way for maximum flow.
The delivery rate of molten adhesive for the 3M Hot Melt
Applicator PG II is seven pounds per hour with a product like
3M™ Hot Melt Adhesive 3738 utilizing the standard tip 9921.
Adhesive flow rates will vary with the different adhesives in the
line and the nozzle tip you choose.
3