Trailer Wiring

[Curt Sprenger]

Kurt,

Thanks.

Trailer Plug...This came about because I wanted all 7 pins working in the receptacle. I used the original trailer receptacle. Only 3 of the original wires could be used, the L, LT, RT. All 7 wires could be run directly to the receptacle. I chose to use fuses and relays, mostly for the new wires I was adding. By wiring all the same way it eliminates confusion in the future if I have to dig back into the whole process. And I know the circuits are protected.


New Wire Loom Routing...The loom is inside and under the coach. Inside is run through the curb side lower elec. raceway. At the rear the loom crosses to the street side behind the fresh water tank, and goes down under the coach from the water pump/control area. At the front the loom goes down under just behind the co-pilot seat belt. and on over to the generator bay. Tom Warner suggests running the wires up from the engine bay into the rear closet, and use the upper wire runway to the front of the coach. Probable the better way to run the loom, unless you've modified your coch interior like I have.

On Tue, Oct 21, 2008 at 11:15 AM, Kurt Horvath <"kguns@hughes.net"> wrote:

Curt,



Looked at photos, Nice job! I am confused why did you have to make

an entire new set up for the trailer plug? Origonal wires not

fuctioning or not up to spec? I have been reading the posts and I

don't recall how this all came about.

I am also very interested in where you ran the new wire loom thru the

coach. I have been planning on this just to get more wires from the

dash to the engine compartment, for future potential up grades.

Thanks for your time



Kurt Horvath

95 PT 42

10AC

--- In "WanderlodgeForum%40yahoogroups.com", "Curt Sprenger"

wrote:

>

> Trailer Panel photos are in the Photo Section. See Curt Sprenger

folder.

>

> On Tue, Oct 21, 2008 at 8:14 AM, Curt Sprenger

wrote:

>

> > Donn,

> >

> > No relay sockets. I prefer to wire the relays. That way I can use

the size

> > wire I want.

> >

> > The write up I posted identifies the relay wiring.

> >

> > The panel board is 1/8" aluminum.

> >

> > The new brake controller is the Tekonsha Prodigy.

> >

> >

> > On Tue, Oct 21, 2008 at 6:43 AM, Donald Watson wrote:

> >

> >> Kurt,

> >>

> >> It looks as though you have thought this out and are doing a

good job.

> >>

> >> What are you using for relay sockets and how are you wiring the

sockets?

> >>

> >> I was going to build a panel for rear and trailer lights and had

yet to

> >> make

> >> a decision. I do have a quantity of copper clad circuit board

material I

> >> could mill for automotive relay PC board sockets.

> >>

> >> I've probably missed previous posts on trailer brake

controllers, but it

> >> sounds as though you are using new technology I am not familiar

with to

> >> supply the variable DC brake voltage. What are you using for a

brake

> >> controller?

> >>

> >> Thank you for sharing with us all.

> >>

> >> Donn

> >> '76 FC33

> >> South Kingstown, RI

> >>

> >> From: "WanderlodgeForum%40yahoogroups.com"
40yahoogroups.com>

> >> [mailto:"WanderlodgeForum%40yahoogroups.com"
40yahoogroups.com>]

> >> On Behalf Of Curt Sprenger

> >> Sent: Tuesday, October 21, 2008 12:54 AM

> >> To: WanderlodgeForum

> >> Subject: [WanderlodgeForum] Trailer Wiring

> >>

> >>

> >> Before I begin...It's a good idea to sketch out on paper a new

panel as

> >> described later. Also the bus original receptacle, a new wire

loom, and a

> >> new brake controller.

> >>

> >> I've pretty much finished the bus Trailer Wiring project. Just

need to

> >> tidy

> >> up a bit. All is working from what I can tell. I need to hook

the trailer

> >> to

> >> the bus to validate the new trailer brake controller. The

controller's

> >> display shows it's not hooked up to the bus which is true.

> >>

> >> What I did...I made up an 80' loom (6 wires, allowing wires for

future). I

> >> thought I had too much wire...ended up using all but 2'. Took a

day to

> >> install the wire loom...that counts my buddies stopping to talk.

I used

> >> #14

> >> wire to make the loom. The the loom is inside 5/8" split loom...

#16 or

> >> #18

> >> wire would work, and will make it easier to install the smaller

diameter

> >> loom. The loom wires are used to trigger relays (turn them on)

and then

> >> wire

> >> the relay output # 87using larger size wire to the trailer 7 pin

> >> receptacle.

> >>

> >> I also made up a panel consisting of....6 relays, an 8 gang fuse

block,

> >> one

> >> 30 amp circuit breaker (CB), and a ground lug. I labeled the

relays L, LT,

> >> RT, BK, 12V, BU. The relay ground pins # 86 are wired to the

ground lug on

> >> the new panel.

> >>

> >> The CB provides power to the 8 gang fuse block. The other side

of the 8

> >> gang

> >> fuse block, one each, is wired to a # 30 relay pin.

> >>

> >> The original trailer receptacle wires ...I used three of the

wires.

> >> Testing

> >> them showed they are OK. The wires are the Lights (L), Left Turn

(LT),

> >> Right

> >> Turn (RT). Two other wires did not show any power. One could

have been a

> >> ground wire. The three wires were wired to trigger the L, LT, RT

(new)

> >> relay

> >> # 85 pins.

> >>

> >> Two new loom wires were used to send signals back to the # 85

relay

> >> terminals on the new panel. The signals are the brake controller

brake

> >> wire

> >> from the new brake controller, and a back-up light wire. The

back-up wire

> >> is

> >> connected to the Back-Up pole on the gen compartment 12V panel.

> >>

> >> The brake controller exciter signal is wired to the Stop Light

pole on the

> >> gen compartment 12V panel. Power for the brake controller is

taken from

> >> one

> >> of the CBs out front of the driver. And the ground is connected

out front

> >> as

> >> well.

> >>

> >> The 12V relay on the new panel...power is supplied from the

battery

> >> collection lug (isolator), to the input side of the 30 amp CB.

The CB

> >> output

> >> side supplies the feed to the # 85 pin on the 12V relay.

Complete all

> >> other

> >> wiring before doing this step.

> >>

> >> The relay # 87 wire to the trailer receptacle...All are # 12

wires except

> >> for the 12V and the Brake and they are #10. The #10 might be

overkill but

> >> that's me.

> >>

> >> The only real issue is routing the new wire loom. The rest is

easier than

> >> it

> >> sounds. I'm getting ready for the Buellton, CA rally and for now

do not

> >> have

> >> the time to make up a schematic.

> >>

> >> Our coach has dual (each side) red led tail/brake/turn/flasher

LED lights.

> >>

> >>

> >> With the brake applied along with a L or R turn, the turn side

blinks, the

> >> other side is a steady brake light.

> >>

> >> I'll try to get to hooking up the trailer tomorrow. I'll keep

you posted.

> >>

> >>

> >>

> >

> >

> >

> > --

> > Curt Sprenger

> > 1987 PT38 8V92 "MacAttack Racing"

> > Anaheim Hills, CA

> >

>

>

>

> --

> Curt Sprenger

> 1987 PT38 8V92 "MacAttack Racing"

> Anaheim Hills, CA

>

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA