Installation, Grounding, System Accessories

INSTALLATION

NOTE: Reference numbers and letters in parentheses in the text refer to the callouts in the figures and the parts drawing.

See pages 22 and 23 for accessories available from Graco. If you supply your own accessories, be sure they are adequately sized and pressure- rated to meet the system’s requirements.

The Typical Installation shown on page 4 is only a guide for selecting and installing system components and ac- cessories. Contact your Graco representative or Graco Technical Assistance (see back page) for assistance in designing a system to suit your particular needs.

SYSTEM ACCESSORIES

Refer to the Typical Installation drawing on page 4.

WARNING

A bleed-type master air valve (G) and a fluid drain valve (L) are required in your system. These acces- sories help reduce the risk of serious bodily injury including splashing in the eyes or on the skin, and injury from moving parts if you are adjusting or re- pairing 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 unex- pectedly. 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.

Air and Fluid Hoses

Be sure all air and fluid hoses are properly sized and pressure-rated for your system. Use only grounded air and fluid hoses. Fluid hoses must have spring guards on both ends. Use of a short whip hose between the main fluid hose and the gun allows freer gun movement.

Mounting Accessories

Mount the pump (A) to suit the type of installation planned. The pump dimensions and mounting hole lay- outs are shown on pages 30 and 31.

If you are mounting the pump on a ram (B), refer to the manual supplied with the ram unit for installation and op- eration instructions. The ram shown in the Typical Instal- lation is a 222-781 19 liter (5 gal.) pail ram, used with a wiper plate (C). The ram shown includes an air regulator. It also requires an air supply hose and an air manifold (D), which divides the main air supply into separate lines for the pump and the ram.

By using Pump Mounting Kit 222-776, you can also mount the pump on Floor Stand 222-780, 200 liter (55 gal.) Ram 223-634, or Inductor 222-635. See Accesso- ries for further information.

Air Line Accessories

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

A pump runaway valve (E) 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 serious- ly damaged. Install closest to the pump air inlet.

An air line lubricator (F) provides automatic air mo- tor lubrication.

A bleed-type master air valve (G) 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 downstream from the air regulator.

An air regulator (H) 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.

An air line filter (J) removes harmful dirt and mois- ture from the compressed air supply.

A second bleed-type air valve (K) 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 the Typical Installation, using adapters as necessary:

A fluid drain valve (L) is required in your system to relieve fluid pressure in the hose and gun (see the WARNING at left). Screw the drain valve into the open branch of a tee mounted in the fluid line. Install the drain valve pointing down, but so the handle points up when the valve is opened.

A fluid regulator (M) controls fluid pressure to the gun/valve, and dampens pressure surges.

A gun or valve (N) dispenses the fluid. The gun shown in the Typical Installation is a dispensing gun for highly viscous fluids.

A gun swivel (P) allows freer gun movement.

GROUNDING

WARNING

Before operating the pump, ground the system as explained under FIRE OR EXPLOSION HAZARD and Grounding on page 3.