Graco 256200 important safety instructions Installation, System Accessories

Installation

Installation

A bleed-type master air valve (AD) and a fluid drain valve (AE) are required in your system, to help reduce the risk of serious injury, including splashing fluid in the eyes or on the skin, and injury from moving parts when you are adjusting or repairing the pump.

The bleed-type master air valve (AD) relieves air trapped between this valve and the pump after the pump is shut off. Trapped air can cause the pump to cycle unexpectedly and result in serious injury, including amputation. Install the valve close to the pump.

The fluid drain valve (AE) helps relieve pres- sure in the displacement pump, hose, and dis- pensing valve when shutting off the pump. Actuating the dispensing valve to relieve pres- sure may not be sufficient, especially if there is a clog in the hose or the dispensing valve.

System Accessories

Refer to FIG. 3 and the Accessories on page 24.

To ensure maximum pump perfor- mance, be sure that all accessories used are properly sized to meet your system’s requirements.

Air Line Accessories

Install the following accessories in the order shown in the Typical Installation for Lubrica- tion Applications, using adapters as neces-

sary:

An air line lubricator (AB) provides automatic air motor lubrication.

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

An air line filter (AC) to remove harmful dirt and moisture from the compressed air supply.

Asecond bleed-type air valve (AD) isolates the air line accessories for servicing. Locate upstream from all other air line accessories.

Fluid Line Accessories

A fluid drain valve (AE) is required in your system to relieve fluid pressure in the hose and gun (see the WARNING on left). Install the drain valve so that it points down and the han- dle points up when the valve is opened.

10 312766N