Graco Aerobotix RC50, Инструкция по эксплуатации

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Maintenance
54 313813A
Maintenance
Schedule
Purge Air from Metering Pump
1. Place a small bucket under valve opening.
2. Open the bleed valve on the metering pump case
slowly.
3. Keep valve open until a steady stream of fluid, with
no air or bubbles, is released from the bleed valve.
4. Close the bleed valve.
Drain the Water Separator
This procedure is performed with the system pressur-
ized.
1. Pressurize the air system.
2. If desired, place container underneath water sepa-
rator to catch expelled water.
3. Depress purge valve.
4. Release valve when all traces of water are gone.
Check/Replace Metering Pump
Inlet Filter
Remove/Inspect the Filter
1. Turn the main power handle to the off position and
lockout.
2. Relieve day tank pressure. Make sure the tank air
pressure gauges read zero pressure.
3. Close day tank ball valve to prevent flow from the
tank to the pump inlet filter.
4. Remove filter cap and visually inspect the filter ele-
ment for particles.
Replace the Filter
5. Replace the element and o-ring as required.
6. Liberally coat the o-ring and surrounding surfaces
with a moisture free grease.
Procedure Frequency
Purge Air from Metering Pump Daily before use
Drain the Water Separator Daily
Check Metering Pump Inlet Filter Weekly
Check Tightness of all Clamps
and Fittings Monthly
Check Hoses for Wear Monthly
Replace PLC battery As Needed
Empty the Day Tanks As Needed
Always relieve day tank pressure and close the tank
bleed valve to prevent fluid flow to the metering pump
inlet filter. Failure to do this can lead to getting
sprayed with chemical when opening the filter.
NOTICE
Do not open the metering pump inlet filter cap imme-
diately before leaving the machine at rest for a long
period of time. This will introduce moist air to the
chemical and may cause the chemical to react and
not mix properly when dispensed.
This procedure requires exposing the chemicals to
moist air. Have all necessary tools and parts nearby
to minimize the amount of time the chemicals are
exposed to the moist air.
One indication that the metering pump inlet filter
requires service is the low inlet pressure alarms
when there is adequate day tank pressure and fluid
volume in the tanks.