Graco 918372 Instructions Manual page 9

The following components are included with the mod-
ule:
Pump Bleed-type Master Air Valve is required in
your system to relieve air trapped between it and
the air motor when the valve is closed (see the
WARNING above). This bleed valve should be eas-
ily accessible and located downstream from the air
regulator. It can be used for a safety lockout.
Pump Air Regulator controls pump speed and outlet
pressure by adjusting the air pressure to the pump.
It is located on the air control panel upstream from
the bleed-type master air valve.
Ram Air Regulator controls the air pressure to the
ram. There are separate air regulators to control
the ram pressure in the up and down directions.
Ram Air Supply Hose connects the ram air regula-
tor to the air manifold.
FRL (filter, regulator, lubricator) conditions the air to
the ram and the pump. The pump air regulator is
located in this assembly. The ram air is taken from
this assembly; an air line tube connects the FRL
and the ram air control module.
Air Line Accessories
Install the following accessories in the order shown in
the Typical Installation, using adapters as necessary:
Pump runaway valve (not shown) senses when the
pump is running too fast and automatically shuts off
the air to the motor. A pump that runs too fast can
be seriously damaged.
Typical Installation
Air line lubricator (I) provides automatic air motor
lubrication (standard on the 4-Regulator Air Control
Module).
Air line filter (A) removes harmful dirt and moisture
from the compressed air supply (standard on the
4-Regulator Air Control Module).
Accessory bleed-type air valve (B) isolates the air
line accessories for servicing. Locate upstream
from all other air line accessories. This isolates the
accessories for servicing.
Fluid Line Accessories
Install the following accessories in the positions shown
in the Typical Installation drawing, using adapters as
necessary:
A fluid drain valve (J) is required in your system to
relieve fluid pressure in the hose and gun (see the
WARNING on page 8). When you install the fluid
drain valve:
1. Screw the drain valve into the open branch of
a tee mounted in the fluid line.
2. Install the drain valve pointing down, and so
the handle points down when the valve is
opened.
A fluid regulator (K) controls fluid pressure to the
gun/valve, and dampens pressure surges.
A gun or valve (L) dispenses the fluid. The gun
shown in the Typical Installation is a dispensing gun
for highly viscous fluids.
A gun swivel (M) allows freer gun movement.
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