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❸ Measure the outside width of the main frame
channel of your RV. Lay out the two (2) Power
Twin leg assemblies (see figure in this section
below) and adjust the inside distance between the
two (2) mounting plates to the same as the outside
dimension of your RV frame.
Take the connecting bracket (#34) and position it
over the two (2) side by side main channels (#1)
and bolt by using eight (8) M8‐1.25x25mm hex
head bolts (#37) with the M8 flat washers (#36)
and M8x1.25 NYLOCK nuts (#35).
Do not tighten at this time.
❹ Attach the Power Twin assembly to the frame
by using the holes provided in the mounting plate
(#2) and (6 each side) ⅜" ***hex head bolts and
nuts or ⅜" self drilling ***hex head screws.
DO NOT use any fasteners smaller than ¼"
diameter.
❺ To finish assembly, go back and tighten the
eight (8) bolts and nuts at the connecting bracket
(#34).
❻ Next step is to wire the switches to our motor
assemblies and connect to the 12‐volt power
supply.
NOTE: In some installations, to achieve the
maximum stabilization you require, it may be
necessary to support the connecting bracket to the
frame of your RV. We do not supply the brackets
as there are many different configurations of cross
members and in most installations it is not
necessary.
***hardware not included
ULTRA POWER TWIN II-30
ULTRA POWER TWIN II-22
MOTOR INSTALLATION
❶ Attach each of the motor and gear box
assemblies (#22) to the Power Twin II with the four
(4) M6‐1.0x110mm hex bolts (#24) making sure the
gasket (#27) is between the motor cover and the
gear box.
NOTE: Make sure that the wires come out of the
bottom side of the motor cover (towards the
ground when installed).
REPEAT this step for the second motor and gear
box assembly.
❷ The switches may be mounted at any desired
location, but a preferred location would be in a
protected environment, such as a storage
compartment or switch box near the jacks. THE
GOAL: To be child‐proof as well as weather‐proof.
❸ CAUTION: To avoid short circuits, remove
the fuses (#28) from the fuse holders (#29) until
the wiring is complete. Use 10 gauge (supplied)
wires for the install. Using a smaller gauge wire
will void the warranty. Join all wire connections
with solder connections or crimp type connection.
DO NOT use wire nuts as they tend to loosen and
fall off.
❹ Connect the GREEN wire to the negative
terminal of the battery, or securely ground it to the
frame (a clean and paint‐free area).
❺ Connect the WHITE wire to the positive
terminal of the battery, or the nearest positive
terminal block. Make sure to install the fuse
holders (#29) on this WHITE wire, one on each
switch. If running more than 15 feet of wire to
access the battery, use a larger wire, such as 6
gauge wire. This will assure maximum
performance. Voltage drop is a concern on long
spans.
❻ Connect the BLACK wire from the motor to
the BLACK wire of the switch. Connect the RED
wire from the motor to the RED wire of the switch
(on each motor).
P/N 39-941705
P/N 39-941707
REV 12/2013
2
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