Graco 239716, Instructions-Parts List Manual

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Maintenance
WARNING
FIRE AND EXPLOSION HAZARD
If the meter is not installed in an intrinsi-
cally safe installation, make sure the
power is off or the electronic sensor is
disconnected before wiping the outside
of the meter clean with a cloth damp-
ened in a compatible solvent or flushing
the meter.
CAUTION
Do not immerse the meter in solvent with the elec-
tronic sensor installed. Solvent could damage the
electrical components.
Air purge is not recommended for any gear-type flow
meter. Air purges do not provide the lubrication the me-
ter gears require.
Residue Build-up on the Meter Gears
Residue build-up may cause the meter gears to bind or
stop rotating, which decreases the meter accuracy and
makes meter recalibration necessary. As more build-up
occurs, recalibration is required more often.
The frequency that your meter requires cleaning
depends on the type of fluid being used. Excessive
residue build-up usually means that you are using
improper cleaning solvents and/or cleaning sequences
or processes.
Check the meter routinely to develop the correct
cleaning schedule.
Use the proper cleaning solvent for the fluid being
metered.
Flushing the Meter
WARNING
INJECTION HAZARD
To reduce the risk of an injection injury or other
serious injury, follow the Pressure Relief Proce-
dure on page 6 whenever you are instructed to
relieve pressure.
Flush the fluid supply line and meter fluid reservoir
daily with a compatible solvent as instructed below.
1. Follow the Pressure Relief Procedure, on
page 6.
2. Connect the fluid line to the solvent supply unit.
3. Flush the meter until it is clean.
4. Follow the Pressure Relief Procedure, then
disconnect the fluid line from the solvent supply
unit.
5. Reconnect the fluid line to the fluid (paint) supply.
6. Turn on the fluid supply.
7. Operate until the meter and fluid line are free of
solvent.
Maintenance continued on next page.