Graco 290/390 Paint Sprayer User Manual


 
Grounding
332758A 11
Grounding
Air and fluid hoses: use only electrically conductive
hoses with a maximum of 500 ft. (150 m) combined
hose length to ensure grounding continuity. Check elec-
trical resistance of hoses. If total resistance to ground
exceeds 29 megohms, replace hose immediately.
Spray gun: ground through connection to a properly
grounded fluid hose and pump.
Fluid supply container: follow local code.
Object being sprayed: follow local code.
Solvent pails used when flushing: follow local code.
Use only conductive metal pails, placed on a grounded
surface. Do not place the pail on a nonconductive sur-
face, such as paper or cardboard, which interrupts
grounding continuity.
To maintain grounding continuity when flushing or
relieving pressure: hold metal part of the spray
gun/dispense valve firmly to the side of a grounded
metal pail, then trigger the gun/valve.
Power Requirements: 100-120V units require
100-120 VAC, 50/60 Hz, 11A, 1 phase. 230V units
require 230 VAC, 50/60 HZ, 7.5A, 1 phase.
The sprayer cord includes a grounding wire with an
appropriate grounding contact.
The plug must be plugged into an outlet that is properly
installed and grounded in accordance with all local
codes and ordinances.
Do not modify the plug provided; if it does not fit the
outlet, have the proper outlet installed by a qualified
electrician.
Extension Cords: Use an extension cord with an
undamaged ground contact. If an extension cord is nec-
essary, use a 3-wire, 12 AWG (2.5 mm
2
) minimum.
NOTE: Smaller gauge or longer extension cords may
reduce sprayer performance.
The equipment must be grounded to reduce the risk
of static sparking and electric shock. Electric or static
sparking can cause fumes to ignite or explode.
Improper grounding can cause electric shock.
Grounding provides an escape wire for the electric
current.
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