Graco PT2500 Instructions-Parts List Manual page 10

CAUTION
Never start the electric motor with the inlet valve
removed to avoid damaging the diaphragm.
13. If you have a Reverse-A-Clean IV tip guard on your
gun and the tip clogs while spraying, release the gun
trigger, lock the trigger safety lever, and rotate the
spray tip handle 180 . See Fig. 6.
14. Unlock the safety lever and trigger the gun into a
grounded metal waste container. Hold a metal part
of the gun firmly to the side of the container to reduce
the risk of static sparking and splashing. The fluid
pressure should force the obstruction from the tip.
Lock the safety lever.
15. Return the handle to the original position, unlock the
safety lever, and resume spraying.
Fig. 6
Startup
16. If the tip is still clogged , lock the trigger safety lever,
shut off and unplug the sprayer, and open the bypass
valve one turn counterclockwise. Disassemble the
tip in the reverse order of assembly (see manual
307–848). Thoroughly clean all parts in a compatible
solvent and inspect for wear or damage. Replace
parts as needed and reassemble. Be sure to use a
new seal and gasket when changing tips.
17. If you have a tip guard on your gun which is not self-
clearing, follow step 12 on page 9.
18. Spraying techniques are given on page 16.
19. Important maintenance procedures are given on
pages 12, 13, and 14.