Operation
312795K
13
Operation
Pressure Relief Procedure
1.
Lock the gun trigger.
2.
Close the bleed-type master air valve.
3.
Unlock the gun trigger.
4.
Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
5.
Lock the gun trigger.
6.
Open all fluid drain valves in the system, having a
waste container ready to catch drainage. Leave
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 the Pump Before First Use
The pump is tested with lightweight oil, which is left in to
protect the pump parts. If the fluid you are using may be
contaminated by the oil, flush it out with a compatible
solvent. See Flushing, page 15.
Trigger Lock
Always engage the trigger lock when you stop spraying
to prevent the gun from being triggered accidentally by
hand or if dropped or bumped.
Trapped air can cause the pump to cycle unexpect-
edly, which could result in serious injury from splashing
or moving parts.
F
IG
. 5. Gun Trigger Lock
ti6581b
ti6582b
Gun Trigger
Locked
Gun Trigger
Unlocked
