308986
21
Flushing
How to Flush the System
WARNING
HOT SURFACE HAZARD
If your system is equipped with heaters,
always shut off the main power to the
heaters just prior to completing spraying.
Shut off heater 10 minutes prior to shutdown to
cool the fluid and the heater. This reduces the risk
of serious injury from burns. Flush system immedi-
ately after shutdown.
For flushing oil from a new system. . .
NOTE:
For flushing the first time, we recommend
using mineral spirits to flush out the oil. Next, flush
again using a solvent that is compatible with the fluid
you will be dispensing. However, be sure the mineral
spirits is compatible with the material you will be
pumping. If it is not compatible, check with your fluid
supplier to determine an appropriate solvent for
flushing out the light oil.
NOTE:
The proportioning pump does not need to to be
running to clean oil from the system. Feed pump
pressure is adequate to flush the system with solvent.
1.
Place each feed pump intake into a separate 5
gallon grounded pail, containing about 3 gallons
(12 liters) of solvent.
To flush or prime . . .
2.
Be sure both of the fluid shutoff valves (Q1) are
open. See Fig. 16.
3.
Place a container under the drain valves (P1,P2) of
the mixer manifold (N). See Fig. 15.
4.
Be sure the feed pump air regulators (E1,E2) are
at minimum pressure. See Fig. 15.
5.
Open the main master air valve (A5). See Fig. 16.
6.
Open the hardener pump master air valve (A1).
See Fig. 16.
7.
Open the hardener side drain valve (P1). Open the
mixer manifold handle (KK). See Fig. 15.
8.
Slowly increase the air regulator (E1) setting until
the pump is running slowly.
9.
When the hardener lines are flushed, close the
mixer manifold handle and close the drain
valve (P1
)
. Close the air valve (A1). See Fig. 16.
10. Repeat Steps 6 to 9 for the resin feed pump. The
resin sides uses these parts: regulator (E2), air
valve (A2), drain valve (P2).
To flush the solvent valves . . .
11. Open the hardener solvent flush valve (N1) on the
mixer manifold (N). See Fig. 15.
a.
Be sure the solvent pump air regulator (E4) is
at minimum pressure. See Fig. 16.
b.
Open the solvent pump main master air
valve (A6) and then open the pump air
valve (A4). See Fig. 16.
c.
Release the dispensing valve safety latch.
Hold the dispensing valve firmly against a
grounded pail and trigger it while slowly
opening the solvent pump air regulator (E4).
Operate the pump slowly until the dispense
line is flushed. Release the dispensing valve
trigger and engage its safety latch. Close the
hardener solvent flush valve (N1).
d.
Open the resin solvent flush valve (N2) and
repeat Step c., above. See Fig. 15.
e.
Close the solvent line shutoff valve (Q2). See
Fig. 16.
CAUTION
Always close the solvent line fluid shutoff valve (Q2)
after the flushing procedure has been completed.
This will prevent the other fluids from leaking into the
flushing line.
Summary of Contents for HYDRA-CAT FIXED RATIO
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