Hitachi 236464 manual Air Line Accessories

System Accessories (continued)

WARNING

A bleed-type master air valve (E) and a fluid drain valve (M) are required in your system. These accessories help reduce the risk of serious injury, including fluid 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. 107141.

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. 235992.

Air Line Accessories

Install the following accessories in the locations shown in Fig. 2, using adapters as necessary:

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

DA bleed-type master air valve (E) is required in your system to relieve air trapped between it and the air motor when the valve is closed (see the WARNING above). Be sure the bleed valve is eas- ily accessible from the pump, and is located downstream from the air regulator.

DAn air regulator (F) controls pump speed and out- let 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.

DA pump runaway valve (C) 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 manifold (G) has a 3/4 npsm(f) swivel air inlet. It mounts to the pump support bracket, and provides ports for connecting lines to air-powered accessories.

DAn air line filter (J) removes harmful dirt and moisture from the compressed air supply. Also, install a drain valve (W) at the bottom of each air line drop, to drain off moisture.

DA 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 locations shown in Fig. 2, using adapters as necessary:

DA fluid filter (L) with a 60 mesh (250 micron) stainless steel element, to filter particles from the fluid as it leaves the pump.

DA fluid drain valve (M), which is required in your system, helps relieve fluid pressure in the hose and gun (see the WARNING at left).

DA gun (S) dispenses the fluid. The gun shown in Fig. 2 is an airless spray gun for light to medium viscosity fluids.

DA gun swivel (R) allows freer gun movement.

DA suction kit (T) allows the pump to draw fluid from a supply container.

CAUTION

To prevent intake valve damage, always apply PTFE tape to the female threads of the intake valve before connecting a suction hose or fitting to the intake.