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Electrical System
Maintenance
Servicing the Battery (Models
22971 and 22974)
Service Interval: Every 25 hours—Check the battery
electrolyte level.
Always keep the battery clean and fully charged. Use
a paper towel to clean the battery case. If the battery
terminals are corroded, clean them with a solution of
four parts water and one part baking soda. Apply a light
coating of grease to the battery terminals to prevent
corrosion.
Voltage: 12 V with 280 cold cranking Amps @ 0 degrees
F (-18 degrees C).
Warning
CALIFORNIA
Proposition 65 Warning
Battery posts, terminals, and related
accessories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harm.
Wash hands after handling.
Battery electrolyte contains sulfuric acid which
is a deadly poison and causes severe burns.
Do not drink electrolyte and avoid contact with
skin, eyes or clothing. Wear safety glasses to
shield your eyes and rubber gloves to protect
your hands.
Removing the Battery
Battery terminals or metal tools could short
against metal machine components causing
sparks. Sparks can cause the battery gasses to
explode, resulting in personal injury.
• When removing or installing the battery, do
not allow the battery terminals to touch any
metal parts of the machine.
• Do not allow metal tools to short between
the battery terminals and metal parts of the
machine.
Incorrect battery cable routing could damage
the machine and cables causing sparks. Sparks
can cause the battery gasses to explode,
resulting in personal injury.
• Always Disconnect the negative (black)
battery cable before disconnecting the
positive (red) cable.
• Always Reconnect the positive (red) battery
cable before reconnecting the negative
(black) cable.
1. Lower the boom and set the parking brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Lift the black rubber cover on the negative cable.
Disconnect the negative battery cable from the
negative (-) battery terminal (Figure 42).
31
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