Maintenance
Electrical System
151 9821/6100-4 151
Battery
Clean
WARNING Keep metal watch straps and any metal fasteners on your clothes, clear of the positive (+)
battery terminal. Such items can short between the terminal and nearby metal work. If it happens you can
get burned.
1. Make the machine safe.
Refer to: Maintenance Positions (Page 122).
2. Get access to the battery.
Refer to: Access Apertures (Page 125).
3. If the terminal posts are corroded and covered with white powder wash them with hot water. If there is
considerable corrosion, clean the terminal posts with a wire brush or abrasive paper. Refer to Figure 110.
Figure 110.
4. Apply a thin layer of petroleum jelly to the terminal posts.
Connect
CAUTION The machine is negatively earthed. Always connect the negative pole of the battery to earth.
When connecting the battery, connect the earth (-) lead last.
When disconnecting the battery, disconnect the earth (-) lead first.
1. Get access to the batteries.
Refer to: Disconnect (Page 151).
2. Connect the battery leads. Connect the earth (-) terminal last.
3. If the machine has a battery isolator, move the switch to the on position.
Refer to: Battery Isolator (Page 34).
Disconnect
CAUTION The machine is negatively earthed. Always connect the negative pole of the battery to earth.
When connecting the battery, connect the earth (-) lead last.
When disconnecting the battery, disconnect the earth (-) lead first.
Notice: Do not disconnect the battery while the engine is running, otherwise the electrical circuits may
be damaged.
1. Make the machine safe.
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