Peterbilt 520EV, Operator'S Manual, Page: 22 / 43

21
Jump-starting a vehicle is not
recommended. However, if the low
voltage battery is discharged (dead), the
vehicle may start by using energy from a
good low voltage battery at a similar
voltage in another vehicle. This is
termed jump-starting.
1. Remove any personal jewelry that
may come in contact with the
battery terminals.
2. Select a jumper cable that is long
enough to be attached to both
vehicles in a way that ensures the
vehicles do not contact each other.
3. Position the two vehicles together,
but do not allow them to touch.
4. Turn OFF all lights, the radio, and
any other low voltage accessories
on both vehicles.
5. Set the parking brakes.
6. Shift the transmission into neutral.
7. If either vehicle is equipped with
battery disconnects, ensure they
are in the OFF position prior to
connecting the two vehicles.
8. Attach one end of a jumper cable
to the positive (+) terminal of the
discharged (dead) battery. This
terminal may have a large red + or
P on the battery case, post, or
clamp.
9. Attach the other end of the same
cable to the positive (+) terminal of
the good (booster) battery
10. Attach the remaining jumper
cable FIRST to the negative (-)
terminal (black or N) of the good
battery.
NOTE
Always connect positive (+) to positive
(+) and negative (-) to negative (-).
WARNING!
Never climb into the cab while it is tilted
forward. Failure to follow this warning
may result in injury, death, or
equipment damage.
WARNING!
Clear the area in front of the vehicle
before tilting the cab. A person in front
of the cab could be hit by the cab while
it is being tilted. Failure to clear the area
may result in injury, death, or
equipment damage.
WARNING!
Remove all metal jewelry, metal belt
buckles, etc. from yourself prior to
jump-starting the vehicle. Failure to
heed this warning could result in
personal injury and equipment damage.
CAUTION!
Improper hook-up of jumper cables or
failing to follow these instructions
correctly could seriously damage all the
vehicles used for jump-starting.