Draining Fuel Filters
1. Open APU side door. Locate two APU fuel filters (1) at inside rear wall of APU
Hold a glass or other small container beneath drain-hose end (2) of each filter.
Open each drain cock, starting with filter at rear, and allow contaminants to drain from
4. Close drain cocks.
5. lnspect fuel from each filter (l) forsigns of water or other contaminants. Report excessive
amounts to Unit maintenance.
Close and secure APU side door.
Servicing APU Air Cleaner
Open APU compartment side door.
Loosen air filter housing clamp (1) to remove dust cap assembly (2).
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