Volvo VNL, Руководство по обслуживанию

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Group 30 Electrical System—VNL, VNM Service Procedures
Soldering/Wire Splicing
Do not use acid core solder. When replacing wires use
the correct wire size as shown in the applicable wiring
diagram or parts book. Secure each harness or wire in
place to prevent chafing or damage to the insulation due
to vibration. Never replace a wire with one of a smaller
size or replace a fusible link with a wire of a larger size.
When soldering wiring always use rosin flux solder to bond
the splice. Use sealant shrink tubing to cover all splices
or bare wires.
It is very important when soldering electrical terminals to
obtain a good soldered joint. Use a quality soldering iron
such as a Weller Model 440D or equivalent. A good quality
soldering iron will offer dual heat in a medium range
(145/210 watts). Use Kester alloy SN60, Flux-44 Rosin,
0.80 mm (0.032 in.) maximum diameter or equivalent.
W3000568
Wire splicing
1) Solder
2) Soldering iron
3) Heat shrink tubing with sealant
4) Wires twisted
Soldering procedure
1
Clean and tin the soldering iron tip.
2
Clean the terminal to be soldered.
3
W3000569
1) Strip as necessary
2) Wire
Strip the wire as necessary to fit the
terminal. Do not cut or nick the wire
when stripping.
4
Slide a piece of sealant shrink tubing
onto the wire.
5
Insert the wire in the terminal and,
with a pair of crimpers (as
recommended by the connector manu-
facturer), squeeze the small tabs onto
the wire insulation. Not all types of ter-
minals have these tabs. Be certain to
use the crimpers recommended by the
connector manufacturer. With a blunt
instrument, form the bare wire so that
it will lay against the soldering area of
the terminal.
6
W3000571
1) Solder
2) Tabs (crimp over wire insulation)
3) Wire
4) Soldering iron
5) Terminal
Using the soldering iron, apply heat to
the outside of the terminal while hold-
ing the solder on the wire on the inside
of the terminal. When a sufficient
amount of heat has been transferred
from the gun through the terminal and
into the wire, the solder will be melted
by the wire. Melt a sufficient amount of
solder on the wire and withdraw the
solder and the tip of the iron. NOTE: Do not
hold the termi-
nal with pliers
or anything
metal during
the solder op-
eration, as
heat will be
conducted
away from the
terminal.
7
Slide the sealant shrink tubing over
the soldered connection, making sure
all exposed wire is covered. Heat the
tubing with a heat gun to shrink.
Shrink until the tubing is tight around
the wire and the sealant is visible out
of both ends of the tubing.
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