ENGINE START-UP SAFETY PRACTICES Safety rules must be observed upon engine start-up. 1. Insure all personnel are clear of truck before starting engine. Always sound the horn as a warning before actuating any operational controls. 2. Check and insure Transmission Range Selector is in " N eutral" before starting. 3. Do not attempt to start engine while cold weather starting heater (if equipped) is in operation. Damage to coolant heaters will result, due to lack of circulation. 4. The key switch is a three position (Off, Run, Start) switch. When switch is rotated one position clockwise, it is in the "run" position and all electrical circuits (except "start") are activated.
Rotate key switch fully clockwise to "start" position (Transmission Range Selector in " N eutral") and hold this position until engine starts. "Start" position is spring loaded to return to "run" when key is released. Starting fluid is extremely volatile and flammable! Use with extreme care. If truck is equipped with optional Engine Starting Aid for cold weather starting and ambient temperature is below 50 o F (10 o C), turn the key switch to the "start" position and while rotating engine, move the Engine Starting Aid switch to the "On" position for three seconds; then release Engine Starting Aid. If engine does not start, wait at least fifteen seconds before repeating the procedure.
Do not crank an electric starter for more than 30 seconds. Allow two minutes for cooling before attempting to start engine again. Severe damage to starter motor can result from overheating . 5. The truck cannot be push started. Transmission lube and control systems are inoperative when engine is not running. See towing decal in Operator’s Cab. 6. When getting a battery assist from one truck to another, all switches must be "Off" prior to making any connections. Be certain to maintain correct polarity. Connect one lead of booster cable to 24V positive (+ ) post of battery needing assist, and other lead of the booster cable to the 24V positive (+ ) post of auxiliary battery.
Connect one lead of second booster cable to 24V negative (-) post of auxiliary battery and then connect other lead of the booster cable to a good frame ground on the disabled truck away from the battery needing assist. This procedure will avoid the possibility of causing sparks near the battery where explosive gases may be present. NOTE: HAULPAK ® Trucks are generally equipped with two 12 volt batteries con- nected in series to provide 24 volt output. Be sure to maintain correct voltage and polarity when connecting booster cables. Damage to electrical components may result if voltage and polarity are not correct. HB6-2 Operating Instructions HB6004 4/94