Graco 224348, 256713 Installation, System Accessories, Mounting Accessories, Air and Fluid Hoses

Installation

NOTE: Reference numbers and letters in parentheses in the text refer to the callouts in the figures and the Parts Drawing.

NOTE: Contact you Graco distributor for available Graco accessories. If you supply your own accesso- ries, be sure they are adequately sized and pressure- rated to meet the system’s requirements.

The Typical Installation shown on page 6 is only a guide for selecting and installing system components and accessories. Contact your Graco distributor for assistance in designing a system to suit your particular needs.

System Accessories

Refer to the Typical Installation on page 6.

WARNING

A bleed-type master air valve (D) and a fluid drain valve (J) are required in your system. These acces- sories help reduce the risk of serious injury includ- ing fluid injection, splashing in the eyes or on the skin, and injury from moving parts if you are adjust- ing or repairing the pump.

The bleed-type master air valve relieves air trapped between this valve and the pump after the air is shut off. Trapped air can cause the pump to cycle unexpectedly. Locate the valve close to the pump.

The fluid drain valve assists in relieving fluid pres- sure in the displacement pump, hose, and gun. Triggering the gun to relieve pressure may not be sufficient.

Mounting Accessories

Mount the pump (A) to suit the type of installation planned. The pump dimensions and mounting hole layout are shown on page 26.

The pump is supplied with a bung adapter. To mount the pump, loosen the bung adapter screw and slide the adapter off the pump. Screw the bung adapter secure- ly into the bung hole on the cover of the supply drum. Carefully lower the pump through the bung adapter and into the drum until it rests on the bottom, then pull it back up 1/2 in. (13 mm). Tighten the bung adapter screw to hold the pump in this position. Open the drum’s vent plug to prevent a vacuum from forming in the drum.

Air and Fluid Hoses

Be sure all air and fluid hoses are properly sized and pressure-rated for your system. Use only electrically conductive air and fluid hoses. Fluid hoses must have spring guards on both ends.

Connect a electrically conductive fluid hose (L) to the fluid filter (K), if used, or directly to the pump’s fluid outlet.

Use a electrically conductive 1/2 in. ID (minimum) air hose (H) to supply air to the pump.

Air Line Accessories

Install the following accessories in the order shown in the Typical Installation, using adapters as necessary.

DAn air line lubricator (C) provides automatic air motor lubrication.

DA bleed-type master air valve (D) is required in your system to relieve air trapped between it and the air motor when the valve is closed (see the WARNING at left). Be sure the bleed valve is easily accessible from the pump, and is located down- stream from the air regulator.

DA pump runaway valve (B) senses when the pump is running too fast and automatically shuts off the air to the motor. A pump which runs too fast can be seriously damaged.

DAn air regulator (E) controls pump speed and outlet pressure by adjusting the air pressure to the pump. Locate the regulator close to the pump, but upstream from the bleed-type master air valve.

DAn air line filter (F) removes harmful dirt and moisture from the compressed air supply.

DA second bleed-type master air valve (G) iso- lates the air line accessories for servicing. Locate upstream from all other air line accessories.

Fluid Line Accessories

Install the following accessories in the positions shown in the Typical Installation, using adapters as neces- sary:

DA fluid drain valve (J) is required in your system to relieve fluid pressure in the hose and gun (see the WARNING at left). Install the drain valve point- ing down, but so the handle points up when opened.

DA fluid filter (K) filters harmful particles from the fluid.

DA spray gun (M) dispenses the fluid. The gun shown in the Typical Installation is an airless spray gun.

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