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 158 of 452

COLD WEATHER STARTING BELOW 32º F (0º C) - CONTINUED

2. If not applied, pull out parking brake control knob (Figure 1, Item 1).

NOTE

M915 and M915A1 vehicles have a neutral safety switch

that prevents the engine from being started with the

transmission in any gear other than neutral.

3. Place transmission manual control lever (Figure 1, Item 3) in neutral (N) position

(Figure 1, Item 2).

NOTE

Ensure all accessories are turned off and engine retarder

system is disengaged.

When the vehicle ignition is switched on, the low air

pressure warning buzzer will sound and the following

warning indicators will illuminate: LOW AIR PRESSURE,

ENG OIL, and PARK BRAKE. On M915 through M920

series vehicles, the strip heater indicator light, located on the

shift console, will also illuminate in cold weather.

4. Insert ignition key in engine run switch (Figure 2, Item 1) and turn on ignition by

moving engine run switch (Figure 2, Item 1) clockwise to IGNITION AND

ACCESSORY (ON) position (WP 0005).

5. Observe low air pressure warning buzzer sound and LOW AIR PRESSURE

indicator (Figure 2, Item 4), ENG OIL indicator (Figure 2, Item 2), and PARK

BRAKE indicator (Figure 2, Item 3), and transmission heater warning lamp on the

M915 through M920 illuminate.

Figure 1. Applying Parking Brake and Selecting Neutral.

1

2

3

3

2

M915A1

M915 THROUGH M920

TM 9-2320-273-10

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