Rotax 912 Series Maintenance Manual page 48

Inspection items
2.2.12) Verification of the V-belt tension
a) On engines with an external alternator, inspect the
attachment and the V-belt tension for damage and ab-
normalities, including obstructions, cracks, wear and
condition.
See Chapter 12-00-00, para 2.6
2.2.13) Spark plugs
a) Remove all spark plugs, verify heat range, clean the
spark plugs.
Inspect electrode gap and adjust as necessary.
Replace as required.
See Chapter 12-00-00, para 6.2
b) Renewal of spark plugs.
CAUTION:
See Chapter 12-00-00, para 6.2
(1
applicable only on engine type 912 S / ULS / ULSFR
2.2.14) Spark plug connectors
a) Verify security of spark plug connectors.
Minimum pull-off force is 30 N (7 lb).
2.2.15) Check of compression
a) Inspect compression by differential pressure method.
Test pressure ___ hPa (psi)
pressure drop
(% or fraction)
See Chapter 12-00-00, para 2.5
Effectivity: 912 Series
MAINTENANCE MANUAL
Clean sparking plug thread and the
sparking seat. Apply heat conduction
compound on spark plug thread.
cyl. 1 _____ cyl. 2 _____
cyl. 3 _____ cyl. 4 _____
AIRCRAFT ENGINES
page 9 of 10
25
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X
Check (hr.)
Signature
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X X X X
X (1 X X
X (1 X X
X X
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05-20-00
page 12
Rev. 1, Jan. 01/2002
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