Roadmaster 98300 Installation Instructions Manual - Step A
Figure 16
Install the motorhome monitor system
Step A
Wire the motorhome
Note: Some motorhomes are manufactured with aux-
iliary wires pre-strung from the rear of the motorhome
to the dashboard, for aftermarket accessories such as
this. Call the manufacturer.
1. Attach the end of the black wire with the female bul-
let connector to the back of the motorhome, near the
female quick coupler you attached in step 1, “Install
the air lines.”
Attach the connector with one or more of the in-
cluded wire ties. Allow enough slack so that a male
bullet connector can be plugged into and out of it.
2. Once the female bullet connector is attached,
route the wire from the back of the motorhome to the
underside of the dashboard. Avoid lines, hoses, mov-
ing parts (slideouts, sliding generators, sliding battery
trays) or “hot” components such as exhaust systems.
Where appropriate, use wire ties to secure the wire to
the undercarriage.
Step B
Attach the LED
1. Chose an area on the motorhome dashboard to
mount the LED. Look for a mounting point away from
pre-existing wires or components, where the LED can
be easily seen by the driver.
2. Drill a 5/16-inch hole through the dashboard at the
point you have chosen. Before drilling, make certain
you will not damage any components on the other side.
3. Center the LED decal (Figure 16) over the hole, and
press it down. Or, you may chose to omit the decal,
depending on your preferences.
4. From the top of the dashboard, slide the LED
through the hole, wires first, until the base of the bulb
(Figure 16) is flush to the top of the dash.
5. From the underside of the dash, fit both of the wires
through the speed nut (Figure 16). Then push the speed
nut up, against the dash, to secure the LED in place.
6. Connect to power — Trim the black wire, which you
routed from the back of the motorhome. (Save the ex-
cess; you may use it in the next step.) Then, connect
the black wire to the red LED wire, using one of the
included butt connectors.
7. Connect to ground — Connect the ground wire from
the LED to any good chassis ground, using the included
ring terminal. (If necessary, use any excess wire from
the preceding step to extend the length of the ground
wire.)
Step C
Connect the patch cord between
the motorhome and the towed vehicle
Note: The patch cord is the six-foot length of air line
and wiring, covered in blue plastic loom.
1. Connect the male and female quick couplers at
either end of the air line to the corresponding quick
couplers on the motorhome and towed vehicle.
Push the couplers together until the housing (Figure
14) on the female coupler slides forward and ‘clicks,’
locking the couplers together.
(To disconnect the couplers, pull back on the hous-
ing on the female coupler until the couplers release.)
CAUTION
Never pull back on the housing to connect the
couplers — this will prevent the couplers from lock-
ing. The couplers may disconnect during towing,
preventing the supplemental braking system from
functioning.
2. Connect the male bullet connectors at either end
of the monitor wire to the female bullet connectors on
the motorhome and towed vehicle monitor wiring har-
nesses.
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