Air Oil Manifold - Boss 8060 UBI Operator's Manual

Subsystems (cont.)

Air Oil Manifold

The air oil manifold is a common point for senders and switches
along with filters and control valves. The air oil manifold is
divided into two sides: air and oil.
The air side contains the following:
• Spin-On Coalescer
• Pressure Transducer
• Regulator Valve
• Blowdown Valve
• Minimum Pressure Orifice
The spin-on coalescer is the second and final stage of oil separation in the Boss 8060 UBI PTO
compressor system. As the oil laden air passes through the filter media, oil gathers on the walls and
collects at the bottom of the element. The oil that is separated is then returned to the rear of the
compressor assembly.
On the upstream side of the coalescer is the pressure transducer. This transducer provides precise
feedback to the B-CAN on the status of the compressor system.
On the downstream side of the coalescer is the regulator valve. The regulator valve is a proportional
control valve that sends a signal to close the intake valve when the system pressure has reached the
correct level.
Also mounted downstream of the coalescer is the blowdown valve. The blowdown valve's function is
to relieve the system of air pressure when the 8060 UBI PTO compressor system is shut off. This
valve is piloted by a signal from the intake valve and vents the system pressure to atmosphere.
The most overlooked component in the Boss 8060 UBI PTO compressor system is the minimum
pressure orifice. This orifice is designed to maintain adequate pressure in the system to ensure proper
oil circulation.
The oil side of the manifold contains the following:
• Spin-On Oil Filter
• Temperature Sender
• Thermal Valve
As oil is pushed out the bottom of the sump tank, it is directed to the spin-on oil filter. After the filter
is the thermal valve. The thermal valve bypasses the cooler at start-up to minimize the time to elevate
the system to proper operating temperature.
Lastly, on the oil side is the temperature sender. This sender provides feedback to the B-CAN on the
status of the compressor system.
Description of Components
17 309743