Navistar WorkStar Series, Operator'S Manual

Page: 112 / 258

Operation
Emergency Starting Using Jumper Cables
WARNING
The following procedures must be performed
exactly as outlined, otherwise a fire or a battery
explosion could result in property damage,
personal injury, or death.
CAUTION
To prevent damage to vehicle electronic
components, voltage supplied to a vehicle’s
electrical system must never exceed 16.0 volts.
This voltage must not be exceeded when the
ignition switch is in the OFF, ACC, or IGN
position, or during engine cranking. The most
reliable means for jump starting a vehicle is to
use batteries connected so as to provide 12 volts.
Never use an electric welder.
1. To prevent shorting of the electrical system, remove metal
rings or watches and do not allow metal tools to contact
positive terminal of battery.
2. Place transmission in (N) Neutral and set parking brake in
both vehicles.
3. Shut off lights, heater, air conditioner and any other electrical
loads in both vehicles.
4. Eye protection should be worn if available. If not available,
shield eyes when near either vehicle’s batteries.
5. Vehicle bodies or bumpers must not be in contact.
6. Connect one end of the first jumper cable to positive (+)
terminal of the dead battery or (+) terminal of jump start
stud and then the other end to the positive (+) terminal of
the booster battery.
7. Connect one end of the second jumper cable to negative (-)
terminal of the booster battery and the other end to chassis
frame of the vehicle with the discharged battery. Do not
attach the other end to the negative (-) battery terminal of the
discharged battery, because a spark could occur and cause
explosion of gases normally present around the battery.
8. Reverse above procedure when removing the jumper
cables.
Cold Weather
WARNING
Explosion Hazard. Do not use volatile starting
aids such as ether, propane, or gasoline in the
engine air intake system. Glow plugs and/or grid
heater will ignite vapors, which can cause severe
engine damage, personal injury, or death.
CAUTION
If vehicle is equipped with the optional heated
windshield function, do not scrape the inside
of the windshield. Failure to comply may result
in permanent damage to the heated windshield
components.
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