Maintenance Manual
ASK 21 Mi
Maintenance Manual
Issue: 01.12.2007 mh / mg / mm
Revision:
7.9
7.3 Periodic Inspections of the Power-Plant
7.3.1 Daily (prior to each flight)
See Flight Manual Section 4.3!
7.3.2 Every 25 hours
The detail numbers [x] refer to the Figs. at the end of Section 2
1. Check coolant level and where applicable fill up. See also Section
2.11.1.6 in this manual.
2. Re-tighten the six mounting bolts at the propeller flange. (And every
time the propeller has been reinstalled this must be done
additionally already one hour after the re-installation). Observe the
torque moments!).
3. Examine the elastic tensioning cords of the engine compartment
doors. Replace if damaged.
4. With the propeller retracted, the drive belt allows access to the
guide pulleys [36]: check the bearing of the pulleys for play and
friction by rotating them (ball bearing damaged?).
5. Remove residuals caused by oil, exhaust gases or fuel from power-
plant and engine compartment wherever access is possible with
the power-plant installed.
6. Remove drainer valve and clean gaskets.
7. lapsed
8. lapsed
9. Examine fuel hoses for condition, leaks and abrasions.
10. Check condition of cables and electric connectors; watch for any
abrasions.
11. Check condition of control cables and engine operation control
levers for stiffness and abrasions.
TN 4 / 09.09.09 M. Münch
Summary of Contents for ASK 21 Mi
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