4. Cleaning
a
Clogged Tip
WARNING
To reduce the
risk
of serious bodily injury from in
-
jection, use extreme caution when cleaning or
changing spray tips. If the spray tip clogs while
spraying, engage the gun safety latch immediate
-
ly, then follow the procedure in Steps 4a-4e.
below.
pressure
is
fully relieved and the gun safety latch
is
NEVER
wipe
off
buildup around the spray tip until
engaged.
a.
Clean the front of the tip frequently during daily
operation.
First,
follow the Pressure Relief
Procedure
Warnlng on page
10.
Then use
a
solvent
-
soaked brush to keep fluid from
b. If the spray tip does clog, release the gun trig-
building up and clogging
the tip.
c.
If
using the
RAC
Ill
Spray Tip Kit,
rotate the
ger, and engage the gun safety.
RAC
111
handle
180".
See
Fig
7.
Disengage the
gun safety, and trigger the gun into
a
grounded
waste container. Engage the gun
safew-again.
Return the handle to the original position.
If
using
a
spray tip kit which is not self
-
cleaning,
VERY
SLOWLY loosen the tip guard
retaining nut or
hose end coupling, and relieve
pressure gradually, then loosen completely.
d. Disengage the gun safety, and resume spraying.
Clear the tip or hose, than reassemble.
e.
If
the tip is still clogged,
engage the gun safety,
shutoff and unplug the sprayer, and open
the
drain valve/pressura relief valva to reliava
structions for cleaning the RAC
111
Spray Tip
Kit
pressure. Remove the spray tip and clean
it.
In-
are given on the packaging supplied with the
kit.
MAINTENANCE
1.
Check the pecking nut/wet-cup 'daily. First
follow the Pressure Relief Procedure Warning
on page
10.
Be
sure the wet
-
cup
is
1/3
full of TSL
et
ell
times to help prevent fluid buildup on the
piston rod
.and premature wear of packings. The
packing nut should be
.tight enough to stop
leakage, but no tighter. Overtightening may cause
binding and excessive packing waar.
Use
a
screw
-
driver and light hammer to adjust the nut.
See
Fig
8.
2.
Clean the fluid fllter often and whenever the
sprayer is stored. First follow the Pressure Relief
307
-
273,
supplied, for the cleaning procedure.
Procedure Warning on page
10.
Refer
to
manual
3.
Flush the sprayer et
the
end
of
each
work
day
and
fill
it
with mineral spirits to help prevent pump
corrosion end freezing.
See
"F/ushing Guidelines
"
on page
12.
CAUTION
Never leave water or any paint in the sprayer ovar-
night to:
(1)
prevent pump corrosion:
(2)
prevent
the fluid from freezing in the pump and pressure
control which can cause
loss
of pressure, stalling
spirits for
the final flush, follow the Pressure
or serious sprayer damage. Always use mineral
kava the mineral soirits in tha soraver.
Relief Procedure Warnlng on page
10,
and
\
Fig
7
Fig
8
4.
For
very
short shutoff periods, leave the suction
tube in the paint, follow the Pressure Relief Pro-
cedure Warning on page
10,
and clean the spray
tip.
5.
Coil the hose and hang
it
on the hose rack when
storing
it,
wan for overnight, to help protect the
hose from kinking, abrasion, coupling damage,
etc.
6.
For the
low
profile cart, secure the suction hose
assembly to the brackets on the side
of
the cart.
WARNING
Refer to the warning section
HOSE
SAFETY on
damaged hoses.
page
3
for information on the hazard of using
F
307
-
724
11
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