Hino Motors 300 Series, Mounting Manual

Page: 22 / 169

2 - 5 - 1
KK-XZU215C
ELECTRIC WELDING WORK
Electrical components such as the alternator and tachograph
are directly connected to the battery and one end is grounded
to the chassis frame. Under these conditions, welding current
will flow back along the ground circuit if electric welding is
carried out and damage may be caused to the alternator,
tachograph, electrical components, etc.
Be sure to follow all instructions to be described to chapter 2,
2-9 PRECAUTION ON BODY MOUNTING WORK and
following precautions at performing any electric welding.
(1) procedure before welding
• Make sure to always wear the electric insulation
equipment(insulation rubber gloves .etc)while working.
• Turn the starter switch OFF.
• Pull out the SERVICE PLUG of PCU and wait more than 7
minutes.
• Disconnect the battery's negative terminal.
• Disconnect the connector of DC-DC Converter.
• Disconnect fuse of ECU of the each electronic instrument
(except DC-DC Converter).
• Dinconnect all signal circuit connectors in PCU, after taking
off the front under cover of PCU.
(See the page 2-5-3)
Peculiar to XKU417L-HKFQB3
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