Airmac Owner’s Manual
August 2006
© Glenco Manufacturing Pty Ltd
Page 25 of 44
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Pull the starter handle briskly with both hands. Do not allow the starter handle
to snap back against the engine, but instead return it gently to prevent starter
damage.
•
If the engine doesn’t start, repeat the previous three steps.
To start using the engine’s electric starter, if fitted:
•
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 10 seconds at a
time.
•
If the engine doesn’t start, release the key and wait 15 seconds before
repeating the previous step.
Allow the engine to warm up and then 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:
•
Locate the fuel stop lever mounted on the lower left-hand side of the engine
behind the oil filler cap/dipstick and pull it forwards. Hold firmly until the engine
stops. If an electric starter is fitted, turn the ignition key anticlockwise to the
“OFF” position (after turning off the engine using the fuel stop lever).
•
Close the engine fuel supply valve.
Duty Cycle
To maximize service life, the air compressor should be adequately sized for its given
application.
