Pressure Relief Procedure - Graco XM 24W626 Operation Manual

Pressure Relief Procedure

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 Metering Pump Rods proce-
dure on page 45 to prevent fluid hardening on the
metering pump shafts.
3. Press .
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 . 37: Feed Pump Air Controls
IG
46
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, see
Supply Screen, page 84.
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 (CB). Open the
brass valves on the tank lids for full tank de-pressur-
ization. Pressure gauge (CR) should read 0 psi.
CR
CP
F . 38
IG
6. Open mix manifold ball valves.
CT
FEED PUMP
BYPASS
ti20127a
CS
ti20128a
3A2776H