Grounding

The equipment must be grounded to reduce the risk of static sparking. Static sparking can cause fumes to ignite or explode. Grounding provides an escape wire for the electric current.

Pump: Order Grounding Wire and Clamp Kit, Part No. 222011. See Grounding the Pump and FIG. 1,

Hydraulic Hoses and Fluid Outlet Hoses: Use electrically conductive hoses only.

Hydraulic Power Supply: Follow manufac- turer’s recommendations.

Flushing Pails: When flushing, only use metal, grounded pails. Make firm, metal-to-metal con- tact between the metal part of the dispense valve and the pail. Use lowest possible pres- sure.

Grounding the Pump

To ground pump (See FIG. 1):

1.Remove ground screw (Z) and insert through eye of ring terminal at end of ground wire.

2.Fasten ground screw back onto pump and tighten securely.

3.Connect other end of wire to a true earth ground.

Z

ti10603a

FIG. 1

Installation

Pressure Relief Procedure

Follow the Pressure Relief Procedure whenever you see this symbol.

This equipment stays pressurized until pressure is manually relieved. To help prevent serious injury from pressurized fluid, such as skin injection, splashing fluid and moving parts, follow the Pressure Relief Procedure when you stop spraying and before cleaning, checking, or servicing the equipment.

The system pressure must be manually relieved to pre- vent the system from starting or dispensing accidentally.

For the following instructions, see FIG. 2.

1.Shut off hydraulic power supply.

2.Close supply line shut-off valve (L).

3.Open dispensing valve to relieve pressure.

4.Open pump outlet drain valve. Have a container ready to catch drainage.

5.Close return line shut-off valve (H).

6.If you suspect the nozzle or hose is completely clogged or that pressure has not been fully relieved after following steps 1-5 above, very slowly loosen the hose end coupling to relieve pressure, then clear obstruction.

NOTE: Keep drain valve open until you are ready to dis- pense again.

312350K

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Graco 312350K important safety instructions Grounding, Pressure Relief Procedure

312350K specifications

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