TM 9-2350-287-10
Item
No.
20
21
22
Table 2-1. Preventive Maintenance Checks and Services for Model M992A1
Interval
During
During
During
Location
Item to
Check/
Service
Power-pack
Auxiliary
Power Unit
APU)
Hydraulic
Gages/Lines
Crewmember
Not Fully Mission
Procedure
Capable If:
DRIVER
Check for unusual noises or
vibrations.
CREWMEMBER
Performance or
function inade-
quate; unusual
noises or vibrations
inoperative.
Open APU front door and check
APU engine oil level. Add oil to
bring level up to full (F) mark on dip
stick. Add or drain as needed. Stall
APU (p. 2-118). Check for operation
of unit.
CREWMEMBER
a. Apply system pressure by activa-
ting APU unit.
b. Check gages for normal indica-
tions when operating hydraulic
system:
Change 1
2-43