Graco 425, 300 important safety instructions Installation, Grounding, Ground all of this equipment

Installation

NOTES:

DReference numbers and letters in parentheses in the text refer to the callouts in the figures and drawings.

DAlways use Genuine Graco Parts and Accessories, available from your Graco distributor.

Grounding

WARNING

FIRE AND EXPLOSION HAZARD Before operating the pump, ground the system as explained below. Also read the section FIRE OR EXPLOSION HAZARD on page 3.

Ground all of this equipment:

DPump: Use a ground wire and clamp as shown in Fig. 1. Remove the ground screw (Z) and insert through the eye of the ring terminal at end of ground wire (Y). Fasten the ground screw back onto the pump and tighten securely. To order a ground wire and clamp, order part number 222011.

Z Y

D Air and fluid hoses: Use only electrically conductive

hoses.

D Air compressor: Follow manufacturer’s recommen-

dations.

D Dispensing valve: Ground through connection to a

properly grounded fluid hose and pump.

D Object being dispensed to: Follow your local code.

D Solvent pails used when flushing: Follow your local

code. Use only metal pails, which are conductive,

placed on a grounded surface. Do not place the

pail on a nonconductive surface, such as paper or

cardboard, which interrupts the grounding continu-

ity.

D To maintain grounding continuity when flushing or

relieving pressure, hold a metal part of the dispens-

ing valve firmly to the side of a grounded metal pail,

Fig. 1

TI1052

then trigger the dispense valve.

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