CASE CONSTRUCTION CX75C SR, Operator'S Manual

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6 - MAINTENANCE
Protecting the electronic and electrical systems during battery charging
or welding
DANGER
Improper operation or service of this machine can result in an accident.
Any unauthorized modifications made to this machine can have serious consequences. Consult an
authorized dealer on changes, additions, or modifications that may be required for this machine. Do
not make any unauthorized modifications.
Failure to comply will result in death or serious injury.
D0030A
DANGER
Battery acid causes burns. Batteries contain sulfuric acid.
Avoid contact with skin, eyes or clothing. Antidote (external): Flush with water. Antidote (eyes): flush
with water for 15 minutes and seek medical attention immediately. Antidote (internal): Drink large
quantities of water or milk. Do not induce vomiting. Seek medical attention immediately.
Failure to comply will result in death or serious injury.
D0117A
Whenever carrying out a welding operation on the
undercarriage or upperstructure carriage as autho-
rized by the manufacturer and in accordance with
his instructions, disconnect the batteries, disconnect
the alternator B+ and D+ terminal wires and con-
nect the welding apparatus earth cable to the com-
ponent on which the welding operation is to be per-
formed. Never connect the welding apparatus to the
undercarriage when welding on the upperstructure
(or vice-versa). Never connect the welding appara-
tus earth to a component of the hydraulic system. To
avoid damage to the electronic/electrical systems, al-
ways observe the following:
1. Never make or break any of the charging circuit
connections, including the battery connections,
when the engine is running.
2. Never short any of the charging components to
ground.
3. Always place the key of the battery master
switch in
“O” (Off) position and disconnect the
ground cable from the battery before arc weld-
ing on the machine.
NOTE: position the welder ground clamp as close to the
welding area as possible. If welding in close proximity to
a computer module, then the module should be removed
from the machine. Never allow welding cables to lay on,
near or across any electrical wiring or electronic component
while welding is in progress.
4. Always disconnect the negative cable from the
battery when charging the battery in the ma-
chine with a battery charger.
5. Remove the battery ground cable. Reconnect
the cable when welding is completed.
NOTICE: if welding must be performed on the unit, either
the machine, the battery ground cable must be discon-
nected from the machine battery. The electronic monitoring
system and charging system will be damaged if this is not
done.
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