Table of Contents
Advertisement
Pressure Relief Procedure
WARNING
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally. Fluid
under high pressure can be injected through the
skin and cause serious injury. To reduce the risk of
an injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure if the
spray tip clogs and whenever you:
are instructed to relieve the pressure,
stop spraying,
check or service any of the system equipment,
or install or clean the spray tip.
NOTE: If the proportioner will not be used for a period
that exceeds the work life time, be sure to follow the
Daily Shutdown/Mix Material Flush procedure in the
Operation Manual 308875.
1. Lock the spray gun trigger safety.
2. Press the keypad mode key to change to
manual mode.
3. Shut off the air regulators for the Premier propor-
tioning pump and the feed pumps if installed.
4. Unlock the spray gun trigger safety.
General Operation
5. Hold a metal part of the spray gun firmly to the
side of a grounded metal pail, and trigger the gun
to relieve pressure.
6. Lock the spray gun trigger safety.
7. Open the fluid drain valves (204),
having a container ready to catch
the drainage. Close the valves.
8. If you suspect that the spray tip or hose is com-
pletely clogged, or that pressure has not been fully
relieved after following the steps above, very
slowly loosen the tip guard retaining nut or hose
end coupling and relieve pressure gradually, then
loosen completely. Now clear the tip or hose.
Monitor the Material Supply
CAUTION
Establish a system for monitoring the material supply
to prevent the pumps from running dry. A sudden
lack of material in one pump may cause many sys-
tem problems, including air entrapment, spitting of
the fluids, fluid "crossovers", pump damage, down-
time, and added system stresses.
If a supply container runs dry, stop the pump immedi-
ately. Refill the container, and prime the system.
The proportioner is equipped with sensors that will
start feed pumps (if they are installed) when the fluid is
low or sound an alarm to notify the user of low fluid
levels. See page 50.
Close
204
Open
Advertisement
Table of Contents
