Table of Contents
Advertisement
~~~.~
~
~~
~
~
~~
SERVICE
WARNING
To
reduce the risk of serious bodily injury,
in-
Pressure
Relief
Procedure
eluding splashing in the eyes, or injury from mov-
ing
parts, always follow this procedure whenever
you shut
off the
pump, when checking or servicing
any part
of
the spray system, when installing,
cleaning
or
changing
fluid tips, and
whenever you
stop
spraying.
1.
Shut
off
the air to the pump.
2.
Close the
bleed-type
master air valve (required
3.
Close the pump restrictor valve.
4. Shut off
the air
to
the agitator.
5. Hold a
metal
part
of the gun firmly
to
the
side
of
a
mounded metal pail.
and
trimer the aun to
in your system).
r e k e pressure.
.
.
"
-
6
6.
Open
the
drain valve (reauired in your svstem).
7.
Leave the drain valve open
until
you are ready
having a container ready'to catch'the diainage:
t o spray again.
pletely clogged, or thatpressure has not been fully
If
you suspect
that
the
fluid
tip
or hose is
corn-
relieved after following the steps above,
VERY
SLOWLY loosen the hose end coupling and relieve
pressure gradually, then loosen completely. N o w
clear the tip
or
hose.
TROUBLESHOOTING CHART
PROBLEM
Pump operates, but output low on
both strokes
down stroke
Pump operates, but output low on
Pump operates, but output low on
up stroke
Erratic pump operation
Pump fails
to
operate
Leakage around restrictor valve
ollow the Pressure
Relief
Procel
Jrned on, the line, etc. is clogged.
~~
CAUSE
RasVicted lines or inadequate air supply
Insufficient air pressure-closed or
clogged air valves, etc.
Exhausted fluid supply
Clogged fluid line, valves, gun, etc.
Loose packing nut or worn packings
Held open or worn fluid intake valve
Held open or worn fluid piston
Exhausted fluid supply
Held open or worn fluid intake valve
packing
Held open or worn fluid piston or
Restricted lines or inadequate air
supply
Incorrect restrictor valve setting
clogged air valves,
etc.
Insufficient air pressure-closed or
Exhausted fluid supply
Damaged air motor
Worn or clogged fluid intake valve,
piston or packings
re
Warning
above. Disconnect the
fit
SOLUTION
Clear lines; increase air supply
Open; clean
Refill
8
reprime or flush
Clear".
Tighten; replace.
Clear; service.
Clear; service.
Refill
Et
repilme or flush.
Clear; service.
Clear; service.
Clear lines; increase air supply.
Adjust; see operation.
Open; clean.
Refill & reprime or flush.
Service.
Clear; service.
line.
If
the
pump
starts when
t h e air
306560
5
Advertisement
Table of Contents
