10/12/2010
11
Company Confidential
LUBRICATION & COOLING (7/71
– 12/56)
• Allows to regulate the oil
temperature around 85°C.
• Keeping the oil hot enough
allows to reduce the water
condensation in the
compressor.
• Never remove the thermostat as
this would by-pass the oil
cooler!
Company Confidential
AIR REGULATION SYSTEM
• The air regulation system continuously adjusts the production of
compressed air to the consumption by controlling the engine
speed and unloader valve.
• The unloader and fuel pump throttle are pneumatically (on
mechanical engines) controlled through the pressure regulator.
• On the new electronic Yanmar engines the regulation pressure
signal is converted to a speed signal to the engine ECU.
Company Confidential
AIR FLOW & REGULATION (7/20)
Unit stopped
