APU crankcase drain.
APU engine is hot after operation. Use caution when reaching into APU compartment.
Drain oil only when hot after operation.
Coordinate any seasonal change of oil weight with this service.
Remove six screws (1) and six lockwashers (2) which secure hull drain cover (3) to bottom of hull.
Remove drain plate (3) and gasket (4).
Open right front engine grille door (5).
Open APU crankcase drain valve (6). When oil has drained from crankcase, close drain valve.
Close right front engine grille door (5). Refill engine crankcase with proper grade of oil (see Table 2).
Start APU engine (refer to TM 9-2350-256-10) and check for oil leaks past drain valve (indicated by oil dripping
from drain hose). If oil leak is present, double check that drain valve handle is closed securely. Notify Direct Support
Maintenance if leakage persists.
Install gasket (4) and engine drain cover (3) at bottom of hull and install six lockwashers (2) and screws (1).
END OF WORK PACKAGE