TM 9-2320-279-10-1
Change 8
2-159
M977 Through M985 General Operating Procedures (Cont)
b. Start Warm Engine.
(1)
Pull out PARKING BRAKE control (1).
(2)
Set transmission range selector (2 or 2.1) to N (neutral).
(3)
Turn ENGINE switch (3) to START for about 10 seconds or until
engine starts. Release switch. ENGINE switch will spring back to
ON position.
CAUTION
If OIL PRESS gage does not show any engine oil
pressure within 10 to 15 seconds after starting engine,
shut down engine right away and notify organizational
maintenance. Lack of lubrication may damage engine.
NOTE
S
Do step (4) for Non-FHTV model vehicles.
S
Do step (4.1) for FHTV model vehicles.
(4)
Check that engine OIL PRESS gage (4) indicates normal operating
range of 40 to 60 psi (276 to 414 kPa) at 1800 to 2100 rpm; minimum
for safe operation is 30 psi (207 kPa). At idle, pressure can go as low
as 5 psi (34 kPa).
(4.1)
Check that engine OIL PRESS gage (4) indicates normal operating
range of 50 to 70 psi (345 to 483 kPa) at 1800 to 2100 rpm; minimum
for safe operation is 28 psi (193 kPa). At idle, pressure can go as low
as 10 psi (69 kPa).
