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Operation
313255K 13
Operation
Pressure Relief Procedure
1. Engage the trigger lock.
2. See F
IG. 1. Turn off the bleed-type master air valve
(U).
3. Disengage the trigger lock.
4. Hold a metal part of the gun firmly to a grounded
metal waste container. Trigger the gun to relieve
fluid pressure.
5. Engage the trigger lock.
6. Open all fluid drain valves in the system, having a
waste container ready to catch the drainage. Leave
the drain valve(s) open until you are ready to spray
again.
7. If you suspect that pressure has not been fully
relieved after following the steps above, check the
following:
a. The spray tip may be completely clogged. Very
slowly loosen the air cap retaining ring to relieve
pressure in the cavity between the ball/seat
shutoff and the plugged tip. Clear the tip orifice.
b. The gun fluid filter or the fluid hose may be com-
pletely clogged. Very slowly loosen the hose
end coupling at the gun and relieve pressure
gradually. Then loosen completely to clear the
obstruction.
c. After following the steps above, if the spray tip
or hose still seems completely clogged, very
slowly loosen the tip guard retaining nut or hose
end coupling and relieve pressure gradually,
then loosen completely. With tip removed, trig-
ger gun into waste container.
Flush Before Using Equipment
The equipment was tested with lightweight oil, which is
left in the fluid passages to protect parts. To avoid con-
taminating your fluid with oil, flush the equipment with a
compatible solvent before using the equipment. See
Flush the Pump, page 17.
Trigger Lock
See FIG. 4. Always engage gun trigger lock when you
stop spraying to prevent gun from being triggered acci-
dentally by hand or if dropped or bumped.
FIG. 4. Trigger Lock
TI6581A
TI6582A
Gun Trigger
Safety Locked
Gun Trigger
Safety Unlocked