Exceeding Of Max. Cylinder Head Temperature - Rotax MML-912 Maintenance Manual

3.4)

Exceeding of max. cylinder head temperature

General note
NOTES:
Overview and proceed:
Graphic
Fig. 2
Table 1.
Exceeded up to
180 °C (356 °F)
1
2
Effectivity: 912 Series
Edition 2 / Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
If the maximum cylinder head temperature is exceed-
NOTICE
WARNUNG
ed, other limits are also often exceeded, e.g. oil tem-
perature. Please observe the relevant instructions.
Any exceeding of the max. admissible cylinder head tem-
perature must be entered by the pilot into the engine log
book, stating duration extent of excess temperature and
pertinent detail.
180 °C
Proceed as
(356 °F)
instructed in table 1
0
Max. temperature exceeded up to 180 °C (356 °F) - briefly
Step
The whole cooling system must be inspected, repaired or overhauled in
accordance with the BRP-Powertrain instructions for continued airworthi-
ness.
Inspect all further systems for correct functioning.
Carry out detailed inspection of the affected engine components such as.
- Leakage check on the cooling system.
- Check that the cylinder head attachment is fitted securely. If the cylin-
der head nut is loose, proceed as instructed in sec. "Excess tempera-
ture of over 180 °C (356 °F) and/or for longer than 30 min."
- Check all coolant fittings (feed/outflow) for secure fit.
Proceed as instructed
in table 2
Operating limit
(See Operators Manual 912 Series)
30 min.
Procedure
Time
07140
05-50-00
page 11
October 01/2009