Pressure Relief Procedure - Graco XM PFP Repair Parts

Pressure Relief Procedure

Follow the Pressure Relief Procedure whenever
you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury
from pressurized fluid, such as skin injection,
splashing fluid and moving parts, follow the Pressure
Relief Procedure when you stop spraying and before
cleaning, checking, or servicing the equipment.
1. Engage trigger lock.
2. If the system will be shut down for more than a few
hours, perform Park Fluid Pump Rods procedure
in XM PFP Operation manual to prevent fluid hard
ening on the pump shaft.
3. Press (Stop button).
4. Slide the feed pump air supply valve (DF) and direc
tor valve air supply valve (DA) to the OFF position.
DF
DD
DA
F . 1: Feed Pump Controls
IG
3A2989V
TI19265a2
DE
DC
DB
ti20104a
NOTICE
The material may expand when air pressure is
removed. This can cause the tank to overfill and
damage the parts attached to the tank lid. To pre
vent overfilling the tank, never relieve air pressure
in the tank unless the tank is less than half full.
Verify tank material level on the user interface
Supply Screen.
5. If necessary to relieve tank air pressure: close both
feed system air control ball valves (CT, CS) and
back out the air pressure regulator (CP). Open the
valves on the tank lids for full tank de-pressuriza
tion. Pressure gauge (CR) should read 0 psi.
CR
CP
F . 2
IG
6. Open mix manifold ball valves.
Pressure Relief Procedure
CT
FEED PUMP
BYPASS
ti20127a
CS
ti20128a
7