Jump-Starting the Machine
DANGER
Jump-starting a battery that is cracked, frozen,
has low electrolyte level, or an open/shorted
battery cell can cause an explosion, resulting
in serious personal injury.
Do not jump-start a battery if these conditions
exist; replace the battery.
CAUTION
Corrosion or loose connections can cause
unwanted electrical voltage spikes at any time
during the jump-starting procedure.
Do not attempt to jump start a machine
with loose or corroded battery terminals, or
damage to the engine can occur.
CAUTION
Connecting the jumper cables incorrectly can
immediately damage the electrical system.
Be certain of the battery-terminal polarity and
the jumper-cable polarity when connecting to
the battery.
Important:
Be sure that the vehicles do not touch
and that both electrical systems are off and at the
same rated system voltage. These instructions
are for negative-ground systems only.
Important:
Use the properly sized jumper cables
(4 to 6 AWG) with short lengths to reduce the
voltage drop between systems. Ensure that the
cables are color coded or labeled for the correct
polarity.
1.
Check the battery terminals of the discharged
battery and the booster battery for corrosion
(white, green, or blue “snow”).
Note:
Clean the corrosion from the battery
terminals prior to jump starting. Tighten the
battery cable connections as necessary.
2.
Ensure that the booster is a 12 V battery with
a sufficient amp rating that is in good condition
and fully charged.
Note:
Ensure that the vent caps are tight and
level. If available, place a damp cloth over any
vent caps on both batteries.
3.
Connect the positive (+) cable clamp (red) to the
positive (+) terminal of the discharged battery
(
).
Note:
The positive battery cable is wired to the
starter or solenoid.
g012785
Figure 86
1.
Positive (+) cable on the discharged battery
2.
Positive (+) cable on booster battery
3.
Negative (–) cable on the booster battery
4.
Negative (–) cable on the engine block
5.
Booster battery
6.
Discharged battery
7.
Engine block
4.
Connect the other positive (+) cable clamp (red)
to the positive terminal of the booster battery.
5.
Connect the negative (–) cable clamp (black) to
the negative terminal of the booster battery.
6.
Connect the other negative (–) cable clamp
(black) to the engine block of the stalled machine
and away from the discharged battery.
Important:
Do not connect the negative (–)
cable clamp (black) to the negative battery
post of the discharged battery.
7.
Stand away from the discharged battery of the
machine.
8.
Start the machine and remove the cables in
the reverse order of connection, disconnect the
engine block connection first.
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