8 308198
Setup
Components and Accessories (continued)
Refer to Fig. 2.
WARNING
A red-handled main air bleed valve (V), pump air
bleed valve (G), and fluid drain valve (L) are re-
quired. 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 ram will hold pressure if the ram director valve
(U) is in the horizontal (neutral) position. To relieve
air pressure in the ram, close the red-handled
bleed valve (V) and move the director valve (U) to
DOWN. The ram will slowly drop.
The pump air bleed valve (G, supplied) relieves air
trapped between it 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 (L) assists in relieving fluid
pressure in the displacement pump, hose, and gun.
Triggering the gun to relieve pressure may not be
sufficient. Order Part No. 210658 (3/8 npt).
Air Line
DThe red-handled main air bleed valve (V) is
required in your system to shut off the air supply to
the pump and ram (see the WARNING above).
When closed, the valve will bleed off all air in the
ram and pump, and the ram will slowly drop. Be
sure the valve is easily accessible from the pump,
and is located upstream from the air manifold (D).
DThe pump air bleed 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
above). Be sure the valve is easily accessible from
the pump, and is located downstream from the
pump air regulator (H).
DThe pump 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 pump air bleed valve (G).
DThe air manifold (D) has a swivel air inlet. It
mounts to the ram, and provides ports for connect-
ing lines to air-powered accessories.
DAn air line filter (J) removes harmful dirt and
moisture from the compressed air supply.
DA second air bleed valve (K) isolates the air line
accessories for servicing. Locate upstream from all
other air line accessories.
DThe ram air regulator (T) controls the air pressure
to the ram.
DThe ram director valve (U) controls the raising
and lowering of the ram.
DThe air release valve (X) opens and closes the
flow of air to assist raising the wiper plate (C) out of
an empty pail.
Fluid Line
Install the following accessories in the locations shown
in Fig. 2, using adapters as necessary:
DA fluid drain valve (L) is required in your system
to relieve fluid pressure in the hose and gun/valve
(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 will point up when opened.
DA fluid regulator (M) controls fluid pressure to the
gun/valve, and dampens pressure surges.
DA gun or valve (N) dispenses the fluid. The gun
shown in Fig. 2 is a dispensing gun for highly
viscous fluids.
DA gun swivel (P) allows freer gun/valve move-
ment.
Air and Fluid Hoses
Be sure all air hoses (S) and fluid hoses (R) are prop-
erly sized and pressure-rated for your system. Use
only electrically conductive hoses. Fluid hoses must
have spring guards on both ends. Use of a short whip
hose and a swivel (P) between the main fluid hose and
the gun/valve (N) allows freer gun/valve movement.
