Pressure Relief Procedure - Graco XM PFP 273231 Repair And Parts Manual

55 gallon (208 liter) feed system
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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 hardening on the pump shaft.
3. Press
(Stop button).
4. Slide the feed pump air supply valve (DF) and
director valve air supply valve (DA) to the OFF
position.
DD
DA
3A8047B
TI19265a2
DF
DE
DC
DB
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
prevent 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-pressurization. Pressure gauge (CR) should read
0 psi.
CR
CP
6. Open mix manifold ball valves.
Pressure Relief Procedure
CT
FEED PUMP
BYPASS
ti20127a
CS
ti20128a
9

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