User's Manual

Empty and Flush Entire System
3A2776D 45
Empty and Flush Entire System
Only perform this procedure when:
• The system will not be used for more than one
month.
• Changing to a new material in the A or B side.
To flush a new system, see Initial Startup on page 24.
To flush only the mix manifold to the gun, see Flush
Mixed Material, page 36.
NOTE: While hot water is sometimes used to flush
mixed material from the system, it is not recommended
for flushing the entire system. When flushing the entire
system, use a solvent the dissolves the material.
This procedure is designed to minimize the volume of
discarded A and B material when emptying and flushing
the entire system.
1. Flush Mixed Material, page 36.
2.
If applicable, remove the feed pump from pail:
a. With director valve (DC) in the neutral position
and the RAM air regulator (DB) backed out,
slide main air slider valve (DA) ON.
b. Lift the director valve to the UP position, the
press and hold the blowoff button (DD) while
increasing the air pressure using the RAM air
regulator. When the feed pump exits the pail,
move the director valve to the neutral position
and release the blowoff button.
3. Empty the feed pump outlet material lines to the
tank:
a. Slide the air motor slider valve (DF) ON.
b. Rotate air motor regulator (DE) to increase air
pressure until feed pump begins to cycle. Con-
tinue until all material from outlet line to the tank
have been pushed into the tank. This will be
noticeable by an increase in feed pump cycle
rate.
4. Make sure all heaters are off and cool.
• Running solvent through heaters can cause a fire
or explosion. Turn off heaters and allow to cool
before flushing. Do not turn on heaters until fluid
lines are clear of solvent.
• Splashing fluid can land on exposed body parts
and irritate the skin. Cover fluid container and use
the lowest possible pressure when flushing to
avoid splashing.
F IG . 34: Feed Pump Air Controls
DF
DB
DA
DC
DD
DE
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