3M 250 Glue Gun User Manual


 
3MScotc
h-W
eld
P
ol
yur
ethane Reacti
ve (PUR) Easy 250 Adhesive Preheater User’s Manual
5
©3M 2007 January
Instructions for Use (continued)
8. Insert 3M™ Scotch-Weld™ Polyurethane Reactive (PUR) Easy 250
Adhesive Cartridges with disposable nozzle attached end first, into
preheater heat chambers.
!
WARNING
Do not use an unapproved
extension cord with the
preheater. Use of an improper
extension cord
may cause
electrical shock.
Use an
extension cord which complies
with NEC requirements and
state and local codes and other
requirements.
!
Caution
Avoid contact with top surface
and metal heating chambers of
preheater during use and hot
adhesive cartridges and
adhesive.
May cause burns.
IMPORTANT:
Wear heat
resistant gloves and safety
glasses when using.
!
WARNING
Use only 3M™ Scotch-Weld™
Polyurethane Reactive (PUR)
Easy 250 Adhesive Cartridges.
Use with any other material
may
cause hazardous conditions.
Note
Always heat cartridges for 45 minutes prior to use. Adhesive
warmed less than 45 minutes in the preheater may not
extrude properly from the 3M™ Scotch-Weld™
Polyurethane Reactive (PUR) Adhesive Applicator and may
not exhibit optimum bonding properties.
Important
Adhesive will resist flowing through applicator if total
heat history of adhesive cartridge at application
temperature
exceeds 16 hours when used at the
upper temper
ature setting and 40 hours when
used at the lower temperature setting (total time
in preheater and in applicator). Discard any
adhesi
ve cartridge that has been heated longer than 16
hours and replace with a new, heated cartridge.
See the 3M
Scotc
h-Weld™ Polyurethane Reactive (PUR) Easy 250
Adhesive Applicator’s User Manual
for adhesive loading and operating
instructions.
9. When finished using the preheater, push the on-off switch to the “off”
position.