Page 268 - 05. Subyek Teknik Mesin - Automobile Mechanical and Electrical Systems Automotive Technology Vehicle Maintenance and Repair (Vehicle Maintenance Repr Nv2) by Tom Denton

2
252 Automobile mechanical and electrical systems

Figure 2.341 The core or rotor is made of very strong rare earth metal permanent magnets

Figure 2.342 High-voltage battery power switch

As already mentioned, any person with a heart pacemaker or any other
Safety fi rst
electronic medical device should not work on the IMA system. The magnetic
Any person with a heart pacemaker fi elds present ( Fig. 2.341 ) can affect these devices and therefore present a
or any other electronic medical very signifi cant danger. The use of any magnetic storage media near the IMA
device should not work on the IMA system should be avoided. In the presence of the system’s strong magnetic
system because of the high-strength
magnetic fi elds. fi eld, data could be partially or totally erased. A mechanical or electronic
wristwatch would also be damaged.
Before maintenance:

Turn OFF the ignition switch and remove the key.
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Switch OFF the battery module switch ( Fig. 2.342 ).
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Wait for 5 minutes before performing any maintenance procedures on the
●
system. This allows the large storage capacitors to be discharged.
Make sure that the junction board terminal voltage is nearly 0 V.
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Safety fi rst
During maintenance:
Electrical safety gloves are NOT the
●
same as general working gloves. Always wear insulating gloves ( Fig. 2.343 ).
Always use insulated tools when performing service procedures to the high-
●
voltage system. This precaution will prevent accidental short-circuits.