Flush - Graco ToughTek S340e Operation, Repair, And Parts

Flush

Flush
Failure to flush prior to material curing in the system will
result in damage to system and may require replacement of
all system parts in contact with the material.
The fluid/drain purge valve must be flushed to prevent
material hardening in fluid/drain purge valve. If that is not
sufficient, remove, disassemble, and clean the valve then
reinstall.
• Flush if the materials in the system are about to
reach their cure time.
• Flush any time the flow rate starts to decrease and
there are no clogs in the system, as this is a sign
that the material is starting to thicken and cure.
• Always flush the system at least twice, draining all
water between flushes then replacing with clean
water.
• Flush using water only.
1. Perform Pressure Relief Procedure, pg. 21.
2. Remove applicator tip and retainer.
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NOTICE
NOTICE
3. Place applicator outlet in a waste container. The
waste container must be large enough to hold all
dispensed material.
4. Turn motor power switch (S) ON.
5. Turn adjustment knob (H) clockwise slowly to
increase pressure, until a steady stream flows from
gun.
6. When the material level in the hopper is within a few
inches of the material inlet at the bottom:
a. Scrape the material down the sides of the
hopper.
b. Fill the hopper with water as the material runs
out and continue dispensing.
c. Scrub the walls of the hopper with a scrub
brush.
7. When water begins to exit the applicator outlet,
increase the flow adjustment knob to flush heavy
sediments from the system.
8. Once heavy sediment has been flushed, pump the
remaining contaminated water out of the hopper.
9. Turn the motor power switch (S) OFF.
10. Remove the hopper and hopper elbow. Clean all
residual material, then re-install the elbow onto the
system. See Hopper Removal, pg. 22
3A3437G