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 TM 9-2320-312-10
OPERATION UNDER USUAL CONDITIONS - CONTINUED
0005 00
START ENGINE
NOTE
Follow this procedure to start engine at any temperature above -25F (-32C). As required, air inlet mani-
fold heater and automatic ether cold start system will function automatically to facilitate cold weather
starting.
When starting engine in temperatures below -25F (-32C), operate arctic heater to preheat engine block
Refer to WP 0004 00 for the location of instrument panel controls and indicators.
1.
Ensure parking brake is applied.
2.
Ensure all accessories are off.
3.
Ensure transmission is in N (Neutral).
4.
Insert key into ignition and turn key clockwise to first stop (ON).
a.
On instrument and warning light cluster, LOW AIR and PARK BRAKE warning lights and LOW AIR warning
buzzer will come on. Transmission neutral indicator (NEUTRAL) will also come on. Note that LOW AIR light
and buzzer will not come on if air system pressure is above 65 psi (448 kPa).
NOTE
CHK ENG. light will come on and remain on while engine is started. Light will turn off after engine is
started and proper oil pressure is achieved. If light fails to come on, DO NOT start engine; notify your
supervisor.
b.
On instrument panel, CHK ENG. light, ENG PREHEAT light, and CHECK TRANS light will come on.
NOTE
Air inlet manifold heater system operation is automatic. It is capable of delivering heat for 30 seconds
prior to start-up and during cranking of engine. After engine has started, system is capable of delivering
heat constantly for seven minutes, or system can cycle heat for 13 minutes. During heating cycle, heat is
on for ten seconds and off for ten seconds.
c.
ENG PREHEAT light will remain on for a minimum of two seconds, then turn off, regardless of coolant and air
inlet manifold temperatures. If ENG PREHEAT light remains on more than two seconds, wait approximately 30
seconds for light to turn off before cranking engine.
CAUTION
DO NOT operate starter motor for more than 30 seconds at a time. After 30 seconds, allow starter motor to
cool for at least two minutes before attempting to start engine again. Excessive heating of starter motor
may result in damage or early starter failure.
After engine is started, all warning lights should go out in approximately 15 seconds. If warning lights do
not go out, shut down engine and investigate cause. Failure to follow this caution may damage engine.
Engine MUST have adequate oil pressure within 15 seconds after starting. DO NOT leave engine on if
high water temperature/low oil pressure (HIGH WATER LOW OIL) light and alarm remain on or oil pres-
sure is not indicated on gauge after 15 seconds. Damage to engine will result.
If CHK ENG. light fails to turn off after engine has started, shut down engine immediately and notify your
supervisor.
0005 00-2
Change 1
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