Volvo 819 E - Important Safety Precautions

Group 28 Ignition systems
General instructions
Important
Warning!
The ign i lion sys t em ope rat es at high power and
dangerous voltage levels in both the low and high -
tension
cir c uits .
Dangerous voltages are present at all points of the
system , i ncluding connectors etc.
Switch off the ignition:
- when co nnect i ng and disconnecting test instru-
ments
- when disc onnect i ng and reconnecting the con trol
un it connector
- when di sconnecting and reconnecting the i gnition
co il and spark plug leads.
Battery
- Do not disconnect the leads when the engine is run-
ni ng .
- Disconnect
the leads when using a boost charge r.
- Do
not use a boost charger or a voltage source
higher than 16 V when jum p starting.
Control unit
- Remove the con trol unit e.g. when ca rry ing o ut a
stoving ope ration . The unit must not be heated
above
+80° C.
- Disconnect the co ntrol unit connectOr when carrying
out electric-arc welding .
- Remove
the control unit when carrying out electric-
arc
welding in its vicinity.
- Do not repla ce the cont rol unit without checking all
wiring and componen ts, otherwise the replacement
unit may suffer the same damage.
Battery
It is essential that the ba tt ery vol tage be normal (i.e.
not too lowl when testi ng th e various co mponents . A
battery charger may be connected , as required, during
testi ng . Max . permiss i ble charg i ng currentlvoltage :
12 A and 16 V.
NOTE: Do not use a boost charger.
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