AUXILIARY POWER UNIT (APU) CHAINCASE OIL LEVEL CHECK (OC/W)
1.
Remove front engine deck door (WP 0028).
2.
Remove filler plug (Figure 6) and wipe clean.
3.
Verify oil level reaches bottom of threads in fill hole.
4.
Add proper grade oil (OE/HDO) to chaincase through fill hole until oil level reaches threads, if required.
5.
Install filler plug.
6.
Install front engine deck door (WP 0028).
Figure 6.
APU Chaincase Oil Level Check.
TM 9-2350-256-10
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