Graco 306981AD Mounting Accessories, Air and Fluid Hoses, Air Line Accessories

Installation

Refer to the Typical Installation drawing (Fig. 2).

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 skin injection and splashing of fluid in the eyes or on the skin, and injury from moving parts if you are adjusting 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. Order Part No. 113333.

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. Order Part No. 238635.

Mounting Accessories

Mount the pump (A) to suit the type of installation planned. The pump dimensions and mounting hole layout are shown on page 23.

Air and Fluid Hoses

Ensure that you have an adequate compressed air supply. Refer to the performance chart on page 20 to find the air consumption of your pump.

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 an electrically conductive fluid hose (L) to the pump’s 3/8 npt(f) fluid outlet. Use of a short whip hose between the main fluid hose (L) and the gun (M) allows freer gun movement.

Connect a fluid suction hose or tube (N) to the pump’s 3/4 npt(m) fluid intake.

Use an electrically conductive 1/2 in. I.D. (minimum) air hose (H) to supply air to the pump.

Air Line Accessories

Install the following accessories in the order shown in Fig. 2, 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 air valve (G) isolates 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 Fig. 2, using adapters as necessary:

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 the valve is opened.

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

DA spray gun (M) dispenses the fluid. The gun shown in Fig. 2 is an airless spray gun.

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