TM-9-2320-273-10
TRUCK, TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER
TECHNICAL MANUAL; OPERATOR’S MANUAL
DECEMBER 2012
TM-9-2320-273-10 - Page 101 of 452
Table 2. Instrument Cluster and Gauges - Continued.
Key
Control/Indicator
Function
Between 11 and 12 Volts (Yellow Area on Voltmeter):
Indicates battery is undercharged. Turn off all electrical
circuits (if possible) and run engine at highest rpm
permitted for the existing conditions. Voltmeter should
indicate charge in green area. Report problem to Field
Maintenance.
12 to 15 Volts (Green Area on Voltmeter):
Indicates normal operating range.
3.
Transmission Oil
Temperature Gauge
This gauge indicates temperature of transmission oil in
degrees Fahrenheit and Centigrade. The normal operating
range is 100–250° F (38–121° C).
4.
Transmission Oil
Temperature Gauge
Decal (M915A1
Only)
CAUTION
If transmission oil temperature rises to the red zone,
300° F (149° C), stop tractor in a safe place, shift to
NEUTRAL position, and operate engine at 1,500
rpm until gauge indicator is in normal operating
temperature. If temperature cannot be lowered to
normal operating temperature, below 300° F
(149° C), after operating in neutral for 3 minutes,
shut down engine and notify Field Maintenance.
Continued operation at excessive temperatures will
cause damage to transmission.
This decal, located on the instrument cluster directly
above the TRANS OIL TEMP gauge, is a quick
reference for the three color-coded operating ranges
on the transmission oil temperature gauge.
5.
Oil Pressure
Gauge
CAUTION
The minimum engine oil pressure at 1,700–2,100
rpm is 30 psi (207 kPa) for safe engine operation.
At idle, the minimum safe engine oil pressure is
10 psi (69 kPa). If engine oil pressure is below
minimum levels, shut down engine immediately and
investigate cause. Failure to comply may result in
damage to equipment.
This gauge indicates engine oil pressure with engine
running. At 2,100 rpm rated engine speed, the normal
oil pressure range is 35–50 psi (241–345 kPa). At idle,
minimum oil pressure limit is 10 psi (69 kPa).
TM 9-2320-273-10
0005
0005-3
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