Graco ToughTek F680e, Instructions Manual

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Flush
Flush Flush Flush
NOTICE NOTICE
NOTICE
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.
NOTICE NOTICE
NOTICE
The fluid/drain purge valve must be flushed to
prevent material hardening in the 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 as
this is a sign that material is starting to thicken and
cure.
• Always flush the system at least twice, draining all
water between flushes then replacing with clean
water.
1. With the pump stopped, turn hydraulic pressure
control (S) counterclockwise to lowest pressure.
(-)
WWLL DD
2. Remove applicator tip and retainer.
3. Place applicator outlet in a waste container. The
waste container must be large enough to hold
all dispensed material.
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4. Turn hydraulic switch (BB) ON, and pump control
switch (AA) to ON.
5. Increase pressure by turning the hydraulic
pressure control (S) clockwise until a steady
stream of material flows from the applicator.
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.
7. Keep the hopper filled with water while
dispensing.
NOTE: NOTE: NOTE: Be prepared to decrease pressure using
the hydraulic pressure control (S) when the
material exiting the hose changes to water. Cycle
rate can increase as material is flushed from the
hose.
8. When water begins to exit the applicator outlet,
switch the pump control switch (AA) to OFF to
stop dispensing.
9. Place applicator in the system hopper with the
outlet pointing down to enable circulation of
water.
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