3M Scotch-Weld Owner's Manual - Flow Control
© 3M 2006
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Flow Control
Flow control of adhesive with your new 3M™ Scotch-
Weld ™ Hot Melt Applicator PG II is easy. An operator
familiar with the control devices should be able to
adjust the applicator for desired flow. To adjust
adhesive flow, a combination of these control methods
can be used.
The four control devices are:
1. Speed of 3M Scotch-Weld Hot Melt Applicator PG
II movement.
2. The
trigger.
3. The nozzle tip.
4. Air
pressure.
The trigger of the applicator is uniquely designed to
allow for variable control. By pulling the trigger slowly
to the rear, you can observe the start of adhesive flow.
As you continue to pull the trigger rearward, increasing
amounts of adhesive are dispensed.
Two nozzle tips were supplied with your 3M Scotch-
Weld Hot Melt Applicator PG II: a .093’’ (9921) fluted
tip and a .072’’ (9946) brass extension tip. The
applicator was shipped with the .093’’ (9921) tip on the
applicator. This tip will provide maximum flow for all
3M™ Scotch-Weld™ Hot Melt Adhesives except 3746
and 3783. The brass extension tip (9946) will allow for
maximum
control
of all the adhesives and substantially
eliminate initial surge. This is accomplished at a
decrease
in flow rate. Speed of movement is the
preferred means to control flow. In the event that this is
inappropriate for your operation, additional accessory
tips are available.
NOTE:
DO NOT REDUCE AIR PRESSUE BELOW
40 PSI.
If low adhesive flow occurs when operating at
reduced air pressure, return to maximum (80 psi) and
run at least one stick of adhesive through the applicator
and then return to the lower pressure.
Tip No.
Description
9913
2 Hole Spreader
9916
3 Hole Spreader
9917
3 Hole 1’’ Spreader
9921
.093’’ Fluted
9922
.063’’ Fluted
9726
“T” Tip
9940
.125’’ Fluted Tip
9946
.072’’ Brass Extension
9727
“L” Tip
3M Scotch-Weld Hot Melt
Applicator PG II Tips
9726 “T” tip for RSC carton closing and other uses.
9727 “L” tip for FOL carton closing and other uses.
9945 heavy-duty bench stand holds 3M Scotch-Weld
Hot Melt Applicator PG II in proper position when
gun is not is use.