M977 Through M985 General Operating Procedures (Cont)
2-11. DRIVE VEHICLE (CONT).
Do not turn engine switch to start position while motor
is still running to prevent engine damage.
If engine fails to start, repeat step (3) up to seven times.
If engine doesnt start after eight starting attempts,
notify organizational maintenance.
Turn ENGINE switch (4) to START for about 10 seconds or until
engine starts. Release switch. ENGINE switch will spring back to
ON position. Air pressure indicator (5) may light and buzzer may
If OIL PRESS gage does not show 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.
(5) Check that OIL PRESS gage (6) reads 50 to 70 psi (345 to 483 kPa)
for FHTV model vehicles or 40 to 60 psi (276 to 414 kPa) for
Non-FHTV model vehicles.