Graco TRITON 3D150, Instructions-Parts List Manual

Page: 10 / 28

Operation
10 311688D
Operation
Pressure Relief Procedure
1. Shut off the air to the pump.
2. Open the dispensing valve, if used.
3. Open the fluid drain valve to relieve all fluid pres-
sure, having a container ready to catch the
drainage.
Flushing the Pump Before First
Use
The pump was tested in oil. If oil could contaminate the
fluid you are pumping, flush the pump thoroughly with a
compatible flushing fluid. Follow the steps under Start-
ing and Adjusting the Pump.
Starting and Adjusting the Pump
1. Be sure the pump is properly grounded. Refer to
Grounding on page 9.
2. Check all fittings to be sure they are tight. Be sure to
use a compatible liquid thread sealant on all male
threads. Re-torque diaphragm cover bolts (38, 39)
before start-up.
3. Place the suction tube (L) in the fluid to be pumped.
4. Place the end of the fluid hose (P), see F
IG
. 2, into
an appropriate container.
5. Close the fluid drain valve (J).
6. With the pump air regulator (F) closed, open the
bleed-type master air valve (B).
7. If the fluid hose has a dispensing device, hold it
open while continuing with the following step.
8. Slowly open the air regulator (F) until the pump
starts to cycle. Allow the pump to cycle slowly until
all air is pushed out of the lines and the pump is
primed.
If you are flushing, run the pump long enough to thor-
oughly clean the pump and hoses. Close the air regula-
tor. Remove the suction tube (L) from compatible
flushing fluid and place it in the fluid to be pumped.
Pump Shutdown
Short Term Shutdown
For a short term shutdown, relieve the pressure (see
procedure on this page).
Long Term Shutdown
For a long term shutdown, such as several hours or
overnight:
1. Flush the pump thoroughly.
2. Leave compatible flushing fluid in the pump.
3. Relieve the pressure (see procedure on this page).
Read the warnings on page 3, and follow the Pres-
sure Relief procedure below whenever you:
• are instructed to relieve pressure
• stop spraying
• check or service any of the equipment
• install or clean the fluid nozzle.
Operating the pump dry for extended periods or
operating at pressures higher than the recom-
mended maximum input air pressure will reduce
diaphragm life.