TM-9-2320-386-10
2-1/2-TON, 6X6, M44A3 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; EXTENDED SERVICE PROGRAM (ESP); OPERATOR’S MANUAL
JANUARY 1996
TM-9-2320-386-10 - Page 56 of 223
Start engine (para. 2-12) and check
Instruments do not
engine instruments on instrument panel
read within limits
for steady, normal readings as follows:
given.
a.
Oil pressure gauge (7) – 35-70 psi
a.
Oil pressure reads
(241-483 kPa).
less than 35 psi
(241 kPa).
b.
Speedometer (8) – indicates vehicle
speed. Listen for unusual noises.
c.
Tachometer (9) – idle: 750-850 rpm.
d.
Engine temperature gauge (10) –
d.
Temperature
160°-230°F (71°-110°C).
reads more than
230°F (110°C).
e.
Transmission temperature
e.
Temperature reads
gauge (11) – 160°-300°F (71°-149°C).
more than 300°F
(149°C) when engine
is at normal operating
temperature.
f.
With engine at idle speed (750-
f.
Air buzzer and/or
850 rpm), listen for air buzzer and
indicator light will
watch air indicator light (12).
not come on below
65 psi (448 kPa), or
will not shut off above
65 psi (448 kPa).
Table 2-2. Operator/Crew Preventive Maintenance Checks and Services (Contd).
ITEM
NO.
INTERVAL
ITEM TO
CHECK/
SERVICE
PROCEDURE
NOT FULLY
MISSION
CAPABLE IF:
TM 9-2320-386-10
2-23
5
Before
Instru-
Operation
ments
(Contd)
CAUTION
If oil pressure reading is below
normal, or if temperature read-
ing is over 230°F (110°C), shut
down engine at once, or engine
may be damaged.
WARNING
Hearing protection is required
when maintaining vehicle with
engine running.
12
11
10
9
8
7
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