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TROUBLESHOOTING CHART
Pressure Relief Procedure
WARNING
from moving parts, follow this procedure whenever you shut off the pump, whep checking or repairing any part of
To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin, or injury
the system, when installing, cleaning or changing spray tips, and whenever
you s:op spraying. (1) Engage the gun
safety latch. (2) Close the pump air regulator.
(3)
Close the bleed-type master air valve. (4) Disengage the gun safe-
ty
latch.
(5)
Hold
a
metal part of the gun firmly to the side of a grounded metal pail, and trigger the gun to relieve
pressure. (6) Engage the gun safety latch.
17)
Open the drain valve, having
a
container ready to catch the drainage.
(8)
Leave the drain valve open until you are ready to spray again.
If you suspect that the spray
tip
or hose is completely clogged, or that pressure has not been fully relieved after
following the steps above. VERY SLOWLY loosen the tip guard retaining nut or hose end coupling and relieve
pressure gradually, then loosen completely. Now clear the tip or hose obstruction.
WARNING
Never operate the pump with the air motor plate removed.
Moving parts in the piston can pinch or amputate fingers.
PROBLEM
Pump does not operate,
D r no fluid flow
I
I
Pump operates but output
is
low
Erratic or accelerated operation
* W a y s follow the Pressure Relief
CAUSE
Loose or broken pump parts
supply
Restricted line or inadequate air
Exhausted fluid supply
Clogged fluid hoses
need adjustment
Fluid intake or piston valves
Damaged air motor
Insufficient air supply
Exhausted fluid supply
Obstructed gun or dispensing
valve
Damaged fluid pump packings
Held open or worn piston or in-
take valve
Exhausted fluid supply
Fluid intake or piston valve worn
Icedure Warning first1
SOLUTION*
Disassemble, check, repair
Clear, increase
Refill and prime
Clean, or replace
Adjust, see page 9
Repair;
see
306-982
Increase
Refill and prime
Clear
Replace, see page 8
Repair;
see page 8
Refill and prime
Repair; see page
8
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