User's Manual

Maintenance
46 3A2175A
Fluid Control Module (FCM)
Install Upgrade and Key Tokens
NOTE: FCM connection to system is temporarily dis-
abled during the installation of upgrade or key tokens.
1. Use software token 16H821. See Graco Control
Architecture
™
Module Programming manual for
instructions.
NOTE: Upgrade all modules in the system to the
software version on the token, even if you are
replacing only one or two modules. Different soft-
ware versions may not be compatible.
All data in the module (System Settings, USB Logs,
Recipes, Maintenance Counters) may be reset to
factory default settings. Download all settings and
user preferences to a USB before the upgrade, for
ease of restoring them following the upgrade.
The latest software version for each system can be
found at www.graco.com.
Fluid Inlet Strainer Screen
(Not included on HFRS systems)
The inlet strainers filter out particles that can plug the
pump inlet check valves. Inspect the screens daily as
part of the startup routine, and clean as required. The
standard strainer is 20 mesh.
Use clean chemicals and follow proper storage, transfer,
and operating procedures, to minimize contamination of
the A-side screen.
NOTE: Clean the A-side screen only during daily
startup. This minimizes moisture contamination by
immediately flushing out any isocyanate residue at the
start of dispensing operations.
1. Perform Pressure Relief Procedure on page 38.
2. Close the fluid inlet valve at the pump inlet and shut
off the appropriate feed pump. This prevents mate-
rial from being pumped while cleaning the screen.
3. Place a container under the strainer manifold (59d)
to catch fluid. Remove the strainer plug (59j).
4. Remove the screen (59g) from the strainer manifold.
Thoroughly flush the screen with compatible solvent
and shake it dry. Inspect the screen. If more than
25% of the mesh is blocked, replace the screen.
Inspect the gasket (59h) and replace as required.
5. Ensure the pipe plug (59k) is screwed into the
strainer plug (59j). Install the strainer plug with the
screen (59g) and gasket (59h) in place and tighten.
Do not overtighten. Let the gasket make the seal.
FIG. 16
ti12334a1
D