i.
Open the feed pump air valves
Refer to the
Typical Installation.
Prime the hoses.
With the gun disconnected from the
manifold, hold the manifold
so each
outlet port is directly over a separate waste
container as shown in Fig 17.
- - - - -
Pressure Relief Procedure
Always relieve the fluid pressure in the sprayer
and hoses before checking or adjusting any part of
the system or any component, to reduce the risk
of serious bodily injury, including fluid injection,
splashing in the eyes or on the skin, or injury from
moving parts or electric shock.
1. Engage the spray gun trigger safety latch.
2. Shut off the air to the feed pumps.
3. Turn off the air to the proportioning pump.
4. Close the gun manifold needle valves.
5. Disengage the trigger safety latch, trigger the
gun, to relieve pressure, and engage the trig-
ger safety again.
6. Open both fluid filter drain valves, having a
container ready to catch the draining fluid.
7. If you are working on any part of the heater,
shut off the main electrical power to the
heater.
2. Insulate the hose connections.
Open the manifold needle valves
See
Fig 15, page 9. Allow the material to flow
out until all air is purged from the sprayer
and the spitting stops.
.
(3) Close the needle valves. Do not connect
the manifold and gun.
NOTE:
Do not reuse the purged material in both
waste containers to avoid contaminating
your supply drums with test fluid left in the
components after factory testing.
k. Adjust the air pressure regulator (212) to the
proportioning pump to
psi
bar). See the
Typical Installation on page 4.
I
I.
Slowly open the air valve (114). This
pressurizes the fluid in the sprayer. See the
Typical Installation on page 4.
m. Check each fluid connection for leaks. If there
are any leaks, relieve the fluid pressure as in-
structed below and tighten the connection.
a .
sure the fluid pressure is relieved and the
electric power is shut off as instructed in the
Pressure Relief Procedure warning, the left.
b. Wrap electrical tape securely around the fluid
and air hose connectors (only) so the sharp
metal edges of the connectors cannot damage
the plastic connectors of the heat tapes. See
Fig
c .
Tape the heat tape connectors to the taped air
and fluid hoses connectors, making sure
heat tape is still bent to take up slack
on both
sides of the connectors. Do not tape the heat
tape wires as they must be able to move slightly
to prevent strain on the connector wires. See
Fig 18b.
WARNING
Do not use the heated hose for spraying until the
insulation tubing (see step and the abrasion
cover (see step
is in place.
The insulation helps protect against bodily fluid in-
jection if a leak occurs and minimizes heat loss
and damage to the hose connections.
The abrasion cover protects the insulation from
surface
damage.
Fig 18b
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