Engine Maintenance Manual
Jabiru Aircraft
Pty Ltd
JEM0002-5
Jabiru 2200 & 3300 Aircraft Engines
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ISSUE
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Dated : 2nd June 2015
Issued By: AS
Page: 27 of 103
L:\files\Manuals_For_Products\Engine_Manuals\Engine Maintenance Manual 22 & 33\JEM0002-5.docx
5 OPERATING INSTRUCTIONS
To ensure that the engine operates reliably, carefully observe all of the operating &
maintenance instructions.
5.1
Daily Checks
Note: The checks given below are the basic requirements for safe operation of the engine.
Any additional inspections required by the aircraft operating instructions (such as the Pilot
Operating Handbook) must also be carried out.
Ensure free movement of throttle, choke & carburetor heat cables. Return throttle to idle before
attempting to start engine.
Check Oil Level, replenish if necessary.
i)
Check oil level by screwing in cap fully before withdrawing
ii)
Oil level should be between the MAX & MIN marks - but must never be below the
bottom of the dipstick.
iii)
Before long periods of operation, ensure that the level is at least at the mid position.
iv)
Difference in the oil quantity between MAX & MIN mark is 300 mL (0.317 US Quarts).
Note: overfilling is detrimental to the engine; it will usually result in elevated engine
temperatures and rapid oil use.
v)
Also see Section 5.10 for special operating procedures for the first 25 hours of
operation or after an overhaul.
Check lubrication & fuel system for leaks.
i)
Visually inspect for signs of leakage on the ground where the aircraft was parked
overnight
ii)
Inspect the oil cooler for leaks through the cowl opening
iii)
Visually inspect the underside of the aircraft for fresh oil or fuel residue.
Check exhaust system for security.
i)
Wriggle the exhaust tail pipes by hand, checking for excessive movement, rubbing on
cowls or unusual noises.
With Ignition & Master OFF, and throttle closed, turn propeller by hand & observe engine for
odd noises or heavy movements. Check for regular compression. If irregular, refer to Trouble
Shooting section of this Manual for corrective action.
CAUTION:
Prior to pulling through the propeller by hand, both ignition circuits & the Master Switch
must be switched OFF, the brakes applied and the throttle closed.
A common cause of low compression is poorly sealing valves. Continued operation in this
condition will result in damage to valves, valve seats, valve guides & overhead gear.
WARNING
A hot engine may fire even with the ignition/s switched OFF.
DO NOT TURN OVER A HOT ENGINE BY HAND
5.2
Starting Procedure
Activate Starter for a maximum of 20 seconds, followed by a cooling period of 1 minute.
When engine runs, adjust the throttle to achieve smooth running at approximately 1200 RPM.
Deactivate Choke. Check Oil Pressure has risen within 5 seconds - if not, shut down.
Note: After an oil change, crank the engine to obtain oil pressure before starting.
