MacDon M100 SP Operators Manual - Manual (Page 144)

MAINTENANCE/SERVICE
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142
Rev. C
57.8.1.6 Preventing Electrical System Damage
a. Carefully observe polarity when attaching
booster battery.
b. Do not short across battery or alternator
terminals, or allow battery positive (+) cable or
alternator wire to become grounded.
c. Be sure alternator connections are correct
before cables are connected to battery. Refer to
illustration below.
d. When welding on any part of the machine,
disconnect battery cables and alternator wire.
e. Always disconnect battery ground cable when
working with the alternator or regulator.
f. Never attempt to polarize alternator or regulator.
g. If wires are disconnected from the alternator,
use the illustration below to ensure proper
reconnection.
h. Never ground the alternator field terminal or field
circuit.
i. Never connect or disconnect alternator or
regulator wires with battery connected or
alternator operating.
j. Always disconnect cables from the battery when
using a charger to charge battery in windrower.
k. Ensure all cables are securely connected before
operating engine.