Work - Mercedes-Benz Conecto Manual

Practical advice
Measures required for the prevention of damage to buses or components during electric welding work
this could lead to damage to the
electrical system.
Always rectify the cause of the mal-
function before replacing the fuse
concerned.
236
CONECTO (C628.3--)/08.2007 GB
Measures required for the pre-
vention of damage to buses or
components during electric welding

work

To prevent damage to various
components of the bus, the following
measures must be taken before
undertaking welding work:
Have a fire extinguisher on standby.
The clip on the negative terminal of
the battery must be disconnected
and the negative terminal covered.
(Observe the notes on disconnecting
the vehicle batteries.)
The pieces of foam fitted in some of
the cavities in the body as sound-
proofing must be removed before the
commencement of panel work, weld-
ing and tin-plating.
Connect the earth connection of the
electric welder directly to the part
to be welded. When doing so, make
sure that there are no electrically
insulating parts between the earth
connection and the weld point.
Heat-sensitive parts, such as plastic
tubes, are to be protected or re-
moved.
Cables routed in cavities, and con-
tainers or electronic components that
have been fitted concealed, must be
removed from the danger area before
the start of welding.
The passenger compartment and
glazing must be covered with pro-
tective mats to protect them from
weld splatter and flying sparks.
Shield off areas at risk of damage
caused by flying sparks and radiant
heat.
Do not allow the electronics housing
or electrical lines to come into con-
tact with the welding electrode or the
earth connection of the welder.
If two parts are to be welded togeth-
er, both parts must be connected to
the negative clip of the welder.
The connection points for the part to
be welded on the bus and the earth
terminal on the electric welder must
be as bare as possible – paint, cor-