TM 9-2320-279-10-1
2-42
Change 8
Table 2-1. Preventive Maintenance Checks and Services for Models M977 thru M985E1
Location
Item
No.
Interval
Item to
Check/
Service
Crewmember
Procedure
Not Fully Mission
Capable If:
DRIVER
13
Before
Instru--
ments
Continued
CAUTION
Immediately stop engine if oil
pressure is zero.
NOTE
At idle, Non-FHTV oil pressure
can go as low as 5 psi (34 kPa).
c. Check Non-FHTV OIL
PRESSURE gage. Normal
operating range is 40 to 60
psi (276 to 414 kPa)
between engine speeds of
1800 to 2100 rpm. Minimum
for safe operation is 30 psi
(27 kPa).
c. Non-FHTV OIL
PRESSURE gage in-
dication less than 30
psi (207 kPa) during
normal operation or
less than 5 psi (34
kPa) at idle.
NOTE
At idle, FHTV oil pressure can go
as low as 10 psi (69 kPa).
c. Check FHTV OIL
PRESSURE gage. Normal
operating range is 50 to 70
psi (345 to 483 kPa)
between engine speeds of
1800 to 2100 rpm. Minimum
for safe operation is 30 psi
(207 kPa).
c. FHTV OIL PRES-
SURE gage indica-
tion less than 30 psi
(207 kPa) during nor-
mal operation or less
than 10 psi (69 kPa)
at idle.
