New Holland WorkMaster 50 Service Manual page 660

Wiring harnesses - Repair
Temporary wiring harness repair
The following method to repair wiring is a temporary
expedient only. Wiring should be replaced as soon as
possible. Replacement of temporary repaired cables
with new is particularly important if the tractor is to be
used for puddling, spraying etc, as water/chemicals can
enter the repaired area, travel up the cable and damage
electrical components. Do not attempt to repair the wire
on any system sensors as these are sealed and should
only be replaced with a new component.
NOTE: When conducting a cable repair it is important that
only resin cored solder is used. Use of other types of solder
may result in further cable damage.
To carry out a temporary repair, proceed as follows:-
1. Locate damaged portion of cable then cut away outer
protective cover on both sides of the damaged area.
2. Peel back the cable from both ends of the damaged
area and carefully cut away the inner cable cover at
the damaged area and strip about 13.00 mm (0.51 in)
of insulation from the wires. Do not cut away any wire
strands.
3. Using a suitable solvent, clean about 50.00 mm
(1.97 in) from each cover end. Clean the grey cable
cover and the individual leads.
4. Twist two bare leads together for each damaged lead,
being careful to match wire colors, then solder the leads
using resin cored solder. Tape each repaired lead with
vinyl insulation tape, figure 2.
5. Wind a layer of vinyl insulation tape up to the grey cable
cover at each end of the repair section. Make a paper
trough, figure 3, then apply silicon rubber compound
(non hardening sealant) over the repaired section up
to the cover ends. Sufficient sealant must be used to
fill the ends of the cut away area.
Electrical systems - Harnesses and connectors
47866583_ 02/12/2015
55.4 [55.100] / 95
1
GNIL14TR04711AA
2
GNIL14TR04712AA
3
GNIL14TR04713AA