Graco Inc. 235465 - Manual (Page 6)

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Installation/Operation
If using the accessory RAC IV tip guard
1. Engage the trigger safety latch. Rotate the RAC IV
tip handle 180 _ . See Fig.4.
2. Disengage the safety latch. Trigger the gun into a
pail or onto the ground to remove the clog.
3. Engage the safety latch. Rotate the tip handle to
the spraying position.
4. If the tip is still clogged, engage the safety latch,
shut off the sprayer and disconnect the power
source, and open the pressure drain valve to reĆ
lieve pressure. Clean the spray tip as shown in
manual 307-848, supplied with the RAC IV.
Fig. 4
KEY
A Handle shown in
spraying position. Turn
handle 180° and
trigger gun to clear clog.
A
How to Flush the Gun.
WARNING
This gun uses a pre-orifice in the seat to
develop the type of spray pattern required in
most circulating systems. The preĆorifice does
not diffuse the spray from the nozzle into an
irregular pattern, as with the other airless spray
guns you may have used. Therefore, to reduce
the risk of an injection injury when the tip guard
is not installed, such as during cleaning, take
extra precautions to keep your hands and body
away from the nozzle of the gun.
Always flush the pump and the gun before the fluid
being sprayed can dry in it.
NOTE: If it is available, the flushing procedure
provided in your pump or sprayer manual should be
used instead of this procedure.
1. Follow the Pressure Relief Procedure, page 2.
2. Remove the tip guard and spray tip. Soak and
clean the parts.
3. Put the pump intake in a grounded pail of water
or solvent.
4. Start the pump at its lowest pressure.
5. Trigger the gun into the original pail. When
solvent appears, release the trigger.
6. With the gun trigger released, circulate the fluid
until the system is thoroughly flushed.
7. Follow the Pressure Relief Procedure, page 2.
WARNING
To reduce the risk of serious bodily injury,
including splashing fluid in the eyes or on the skin,
or static electric discharge when flushing:
D Be sure the entire system, including flushing
pails, are properly grounded.
D Remove the tip guard and spray tip.
D Maintain metal to metal contact between the
gun and the flushing pail.
D Use the lowest possible pressure.
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