6
306839
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 red-handled main air bleed valve (V) shuts off
and relieves the air to the pump and ram. Order
Part No. 113218. 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
D
The 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).
D
The 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).
D
The air pressure relief valve (X) limits air pres-
sure to the pump, to prevent overpressurization.
D
The 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).
D
The air manifold (D) has a swivel air inlet. It
mounts to the ram, and provides ports for connect-
ing lines to air-powered accessories.
D
An air line filter (J) removes harmful dirt and
moisture from the compressed air supply.
D
A second air bleed valve (K) isolates the air line
accessories for servicing. Locate upstream from all
other air line accessories.
D
The ram air regulator (T) controls the air pressure
to the ram.
D
The ram director valve (U) controls the raising
and lowering of the ram.
D
The air release valve (W) 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:
D
A 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.
D
A gun or valve (N) dispenses the fluid. The gun
shown in Fig. 2 is a dispensing gun for highly
viscous fluids.
D
A 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 (M) and a swivel (P) between the main fluid hose
(R) and the gun/valve (N) allows freer gun/valve move-
ment.
Summary of Contents for Quiet Severe-Duty Bulldog
Page 8: ...8 306839 Notes...
