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41 mm (1-5/8 inches)
Sensor
Figure 6-22. Sensor (RRS, RTS, SRS or STS)
f.
Strip back insulation on all wiring 6.35 mm (1/4
inch).
g. Slide a large piece of heat shrink tubing over the
cable, and place the two small pieces of heat shrink
tubing, one over each wire, before adding crimp
fittings as shown in Figure 6-23.
h. Slide the cap and grommet assembly, which was
saved in step (c.), onto the replacement sensor.
i.
Slip crimp fittings over dressed wires (keeping wire
colors together). Make sure wires are pushed into
crimp fittings as far as possible and crimp with
crimping tool.
j.
Solder spliced wires with a 60% tin and 40% lead
Rosincore solder.
k. Slide heat shrink tubing over splice so that both
ends of tubing cover both ends of crimp as shown in
Figure 6-23.
Sensor
Cable
Large Heat Shrink
Tubing (1)
Figure 6-23. Sensor and Cable Assembly (RRS,
RTS, SRS or STS)
l.
Heat tubing, preferably with a flameless heat gun. If
not available, a propane torch will work (caution
should be taken not to burn the heat shrink tubing or
wire insulation). Make sure all seams are sealed
tightly against the wiring to prevent moisture
seepage.
m. Slide large heat shrink tubing over both splices and
shrink tubing and heat as in step (l.).
CAUTION
Do not allow moisture to enter wire splice
area as this may affect the sensor resistance.
6.35 mm (1/4 inch)
Heat Shrink
Tubing (2)
n. Position sensor in unit per Figure 6-21 and check
sensor resistance as detailed in section 6.23.1.
o. Reinstall the cover (if present) that was removed in
step (b.) over wiring and probe holder.
The P5 Pre-Trip test must be run to inactivate
the alarm (refer to section 3.2.1).
6.23.3 Replacing Sensor (RRS and RTS)
a. Turn unit power OFF and disconnect power supply.
b. Cut cable 5 cm (6 inches) from shoulder of defective
sensor and discard the defective probe only.
c. Cut one wire of existing cable 41 mm (1-5/8 inches)
shorter than the other wire.
d. Cut one replacement sensor wire (opposite color)
back 41 mm (1-5/8 inches). (See Figure 6-22.)
e. Strip back insulation on all wires 6.35 mm (1/4
inch).
f.
Slide a large piece of heat shrink tubing over the
unit cable, and place the two small pieces of heat
shrink tubing, one over each wire, before adding
crimp fittings as shown in Figure 6-23.
g. Slip crimp fittings over dressed wires (keeping wire
colors together). Make sure wires are pushed into
crimp fittings as far as possible and crimp with
crimping tool.
h. Solder spliced wires with a 60% tin and 40% lead
Rosincore solder.
i.
Slide heat shrink tubing over splice so that both
ends of tubing cover both ends of crimp as shown in
Figure 6-23.
j.
Heat tubing, preferably with a flameless heat gun. If
not available, a propane torch will work (caution
should be taken not to burn the heat shrink tubing or
wire insulation). Make sure all seams are sealed
tightly against the wiring to prevent moisture
seepage.
k. Slide large heat shrink tubing over both splices and
shrink tubing and heat as in step (j).
Do not allow moisture to enter wire splice
area as this may affect the sensor resistance.
l.
Check sensor resistance as detailed in section
6.23.1.
m. Reinstall the return sensor as shown in Figure 6-24.
For proper placement of the return sensor, be sure to
6-23
NOTE
CAUTION
T-268-07
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