MacDon M150 SP - Manual (Page 181)

MAINTENANCE AND SERVICING
Form 169017 / 169087 / 169095
179
Revision C
7.11 ELECTRICAL SYSTEM
Electrical schematics are attached at the back of
this manual.
7.11.1 BATTERY
WARNING
• Gas given off by battery
electrolyte is explosive.
Keep all smoking
materials, sparks and
flames away from
batteries.
• Follow the proper charging and
boosting procedures given in this section.
• Ventilate when charging in enclosed
space.
• Always wear protective eye-wear when
working near batteries.
• Do not tip batteries more than 45° to avoid
electrolyte loss.
• Battery electrolyte causes severe burns.
Avoid contact with skin, eyes or clothing.
• Keep batteries out of reach of children.
• If electrolyte is spilled or splashed on
clothing or the body, neutralize it
immediately with a solution of baking soda
and water, then rinse with clean water.
• Electrolyte splashed into the eyes is
extremely dangerous. Should this occur,
force the eye open and flood with cool,
clean water for five minutes. Call a Doctor
immediately.
• To avoid shocks, burns or damage to
electrical system, disconnect battery
ground cable before working in an area
where you might accidentally contact
electrical components.
• Do not operate the engine with alternator
or battery disconnected. With battery
cables disconnected and engine running, a
high voltage can be built up if terminals
touch the frame. Anyone touching the
frame under these conditions would be
severely shocked.
• When working around storage batteries,
remember that all of the exposed metal
parts are "live". Never lay a metal object
across the terminals because a spark or
short circuit will result.
7.11.1.1 Maintenance
CAUTION
Do not attempt to service battery unless you
have the proper equipment and experience to
perform the job. Have it done by a qualified
dealer
a. Check battery charge once a year, and more often
if operating in cold weather. Hydrometer readings
should be 1.260 to 1.300. Readings below 1.250
indicate charging is required. See Section
7.11.1.3 Charging. Add electrolyte if necessary.
See Section 7.11.1.5 Adding Electrolyte.
b. Keep battery clean by wiping it with a damp cloth.
c. Keep all connections clean and tight. Remove any
corrosion and wash terminals with a solution of
baking soda and water. A light coating of grease
on terminals (after cables are attached) will reduce
corrosion.
d. To prolong battery life, store batteries fully
charged and at 20
° to 80°F (-7° to +26°C). Check
voltage after storage, and recharge as needed,
according to battery and charger manufacturer
recommendations.
e. Do not stack storage batteries on top of each
other.
7.11.1.2 Battery Main Disconnect Switch
A battery main disconnect switch is located on the
RH frame rail, just behind the cab, and can be
easily accessed by raising the engine
compartment hood.
Ensure switch is switched to power off position
when performing major servicing to electrical
components, or for periods of non-use to prevent
inadvertent loss of battery charge.