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Old 12-09-2011, 08:36 AM   #1
Debbie Asher
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Portable pumps from Harbor Freight

I know somewhere there is information on changing the portable water pump from 9 volt to plug into the back plug of our truck. Can someone help find that information?
 
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Old 12-09-2011, 08:47 AM   #2
Ozz
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Hi John and Debbie, could you explain a little better? I think a 9 volt water pump would not be compatable with the 12 volt system in the truck, unless I am missing something.
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Old 12-09-2011, 09:20 AM   #3
brenkco
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Debbie,
Is this what you had in mind?
http://www.montanaowners.com/forums/...ad.php?t=45194
Ken
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Old 12-09-2011, 09:32 AM   #4
racerjoe
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If it is the pump that Brenko found all you need to do is replace the clips with a 4 prong trailer plug. You should have a 4 prong and a 7 prong plug on your truck,at least most do. just see what is your power and ground and match it up.
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Old 12-11-2011, 07:15 AM   #5
Debbie Asher
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Racerjoe that's what I'm talking about, I thought there was somewhere in the MOC were we had picture and how to.
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Old 12-11-2011, 12:24 PM   #6
Art-n-Marge
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That link provided by Brenkco talks about a 12v pump system which would be fine for a truck. I'm guessing (hoping) your 9v reference is a typo otherwise you now have to transform a 9v to the truck's 12v system which would complicate things.

If you use the pump like what's shown in the link, you'd just need to set up a connection to the truck (battery). One way is to cut off the clips and buy another 7 pin adapter and plug these wires into the proper hot and ground (aka return) of the connector. This would then plug right into the 7 pin connector on your truck.

The 4 pin trailer connector wouldn't provide these as easy since it only provides the left/brake, right/brake, running and ground (no HOT).

The pump would then need to be close to the 7 pin connector unless you add extra wire. I would also consider running the engine while using the pump so you don't run down the battery.

I hope I'm addressing what you are trying to do here.
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Old 12-11-2011, 02:50 PM   #7
racerjoe
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Art,you are right. In my rush I forgot that there was no hot on the 4 prong,but you could always use the hole for the lights if needed. Since you will need to run the engine anyway like you said. The best part is I should know better...
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Old 12-14-2011, 07:06 AM   #8
Debbie Asher
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Yes it's 12 volt not 9 volt. picked up the 7 pin connector and on/off switch also picked up some extra wiring. Thanks to everyone.
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Old 12-14-2011, 11:44 AM   #9
snfexpress
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I used forklift connectors (smaller versions and designed for 12 volts and lower amperage) for a macerator pump, jumper cables and 12 volt air pump. I put a dust cover on the female side to keep dirt and moisture out.

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