Jump-Starting the Machine
WARNING
Jump-starting the battery can produce gasses that can explode.
Do not smoke near the battery, and keep sparks and flames away from battery.
DANGER
Jump-starting a weak battery that is cracked or frozen or has a low electrolyte level or
an open/shorted battery cell can cause an explosion, resulting in serious personal
injury.
Do not jump-start a weak battery if these conditions exist.
1. Check and clean corrosion from the battery terminals before jump-starting. Ensure that
the connections are tight.
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 the machine with loose or corroded battery terminals, or
damage to the engine may occur.
2. Make sure that the booster battery is a good and fully charged lead-acid battery at 12.6
V or greater.
Note: Use properly sized jumper cables with short lengths to reduce voltage drop
between systems. Make sure that the cables are color coded or labeled for the correct
polarity.
WARNING
Batteries contain acid and produce explosive gases.
• Shield your eyes and face from the batteries at all times.
• Do not lean over the batteries.
Note: Ensure that the vent caps are tight and level. Place a damp cloth, if available,
over any vent caps on both batteries. Also ensure that the machines 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.
3. Connect the positive (+) cable to the positive (+) terminal of the discharged battery that
is wired to the starter or solenoid as shown:
3464-634A Page 5–17 Maintenance: Electrical System Maintenance
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