MacDon M150 SP - Manual (Page 185)

MAINTENANCE AND SERVICING
Form 169017 / 169087 / 169095
183
Revision C
7.11.1.7 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.
See also Section 7.1.1 Welding Precautions.
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.
GROUND STUD
- BLACK CABLE
FIELD TERMINAL
- RED CABLE