Airmac Owner’s Manual
August 2006
© Glenco Manufacturing Pty Ltd
Page 24 of 44
•
Turn the engine control switch clockwise to the “START” position using the
ignition key and hold it there until the engine starts. Release the key as soon as
the engine starts. Do not use the electric starter for more than five seconds at a
time.
•
If the engine doesn’t start, release the key and wait 10 seconds before
repeating the previous step.
As the engine warms up, gradually move the choke lever to the open position.
Close the easy-start valve.
The compressor will now operate automatically. Whenever the air receiver pressure
drops to or below the preset cut-in pressure of approximately 765 kPa (111 psi), the
engine will accelerate to full speed and the compressor will operate in normal “pumping”
mode. Then, whenever the air receiver pressure reaches approximately 965 kPa (140
psi) the engine will decelerate to idle speed and the compressor will operate in
“unloading” mode. When operating in unloading mode, it is normal for air to discharge
in pulses from the pump’s air filter inlets.
To minimize mechanical wear and tear, fuel consumption, and exhaust and noise
emissions, do not operate the compressor unnecessarily for extended periods in
unloading mode. Switch off the engine instead.
Slowly open the outlet valve, but only if it is connected to a suitable compressed air
hose(s) and/or distribution pipe(s) not open to the atmosphere.
When compressor operation is no longer required, turn off the engine control switch
before turning off the engine fuel supply valve.
Diesel Air Compressors
Turn on the engine fuel supply valve to the “O” position.
Open the easy-start valve located to the left of the compressor pump.
Do not touch the engine’s throttle control lever; it will operate automatically.
To start using the engine’s recoil (or “rope”) starter:
•
Pull the starter handle slowly until strong resistance is felt and then return it
slowly.
•
Push the engine decompression lever down and release it.