Graco EM5 238457, Instructions-Parts List Manual

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Installation
11. Thread the new nozzle (5b, 6b, or 7b) onto the
extension, and, with an open-end adjustable
wrench, tighten it firmly. See Fig. 4.
NOTE: On Models with automatic nozzle
239829 (5b or 6b) , tighten the nozzle with the
wrench on the flats of the nozzle bushing. Do not
disassemble the nozzle bushing from the
nozzle.
Disassembly will affect the performance
of the nozzle.
Do not use Graco’s old nozzle (Part No. 203655) or
any other manual shut-off nozzle on the EM5
extension. You must use the nozzle that is pro-
vided with the EM5, or the meter could be dam-
aged. Do not use any sealant material.
CAUTION
12. Open all dispense position shut-off valves, and
start the pump to pressurize the system. See the
Operation section for proper operation of the
EM5.
13. To ensure dispensing accuracy, purge all air from
the fluid lines and dispense valve before you use
it. Set the system flow to the desired flow rate,
which is typically 1.5 gpm. Do not exceed a 5-gpm
flow rate.
Grounding
FIRE AND EXPLOSION HAZARD
The movement of fluids through the
dispensing system generates static
electricity. The static electricity can
cause volatile fumes to ignite, resulting in explosion
and fire. The dispensing system must grounded.
WARNING
Proper grounding is an essential part of maintaining a
safe system.
To reduce the risk of static sparking, ground all system
components per local and national electrical codes.
Refer to the user manuals for the pump and other
system components to ground the following:
D
Pump: Follow manufacturer’s recommendations.
D
Air and Fluid hoses: Use only grounded hoses.
D
Air compressor: Follow the manufacturer’s recom-
mendations.
D
Fluid supply container: Follow the local code.
To maintain grounding continuity when flushing or
relieving pressure,
always hold a metal part of the
valve firmly to the side of a grounded metal pail, then
trigger the valve.