Pressure Relief Procedure
3A6981C Repair 3
Pressure Relief
Procedure
1. Set pump valve(s) to OFF (250SPS has one pump
valve; 250DC has two pump valves). Turn engine
OFF.
2. Turn pressure control to lowest setting. Trigger all
guns to relieve pressure.
3. Engage all gun trigger locks. Turn prime valve(s)
down (250
SPS
has one prime valve; 250
DC
has two
prime valves).
4. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved:
a. VERY SLOWLY loosen the tip guard retaining
nut or the hose end coupling to relieve pressure
gradually.
b. Loosen the nut or coupling completely.
c. Clear the obstruction in the hose or tip
.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury
from pressurized fluid, such as skin injection, splash-
ing fluid and moving parts, follow the Pressure Relief
Procedure when you stop dispensing and before
cleaning, checking, or servicing the equipment.
PAINT
ti3305a
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