User's Manual

13308-807
3X8–807
Rev. C
Supersedes Rev. B
Parts Change Notice
Some parts in Rev. B of manual 308–807 have changed but have not yet been changed in the
instruction manual. Please note the changes below and mark them in your manual or keep this
sheet with your manual.
Assembly No.
Series
Letter
Change
Part That
Changed
Ref
No. Part Description Description of Change
All Models B 114–330 3 Trigger Replaced by Part No. 194–983 Trigger
Other Changes
Page 1: Add: For use with fluids of viscosity less than 150,000 cps.
Before the Service Section: Add the following Troubleshooting Chart:
PROBLEM CAUSE SOLUTION
When using a small orifice wand
(approximately .040 in. diameter),
1/4 to 3/4 in. of material continues
to flow from the outlet of the
wand immediately after releasing
the trigger.
Air is trapped in the wand. Purge all air from the wand.
Helpful Tip: To verify that air is
trapped in the wand, trigger the gun,
then quickly shut off the material sup-
ply, relieve pressure in the gun, and
promptly remove the gun from the
supply hose. Then, without triggering
the gun, lay it on a bench and ob-
serve if material continues to flow
very slowly from the outlet of the
wand (approximately 0.1 in. per min-
ute from a .050 in. orifice). If this oc-
curs, there is air trapped in the wand.
Popping, snapping, spitting, gaps,
or irregularities in the material
stream as it flows from the wand.
Air in the material. Dispense material from the gun/wand
until the popping, snapping, and spit-
ting has stopped and the bead/extru-
sion is smooth and uninterrupted.
Gun does not shutoff completely. Needle is not fully seating. Readjust the trigger as described in
steps 6 and 7 under Reassembly, on
page 6 of your manual.
July 8, 1999
All written and visual data contained in this document reflects the latest product information available at the
time of publication. Graco reserves the right to make changes at any time without notice.