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04-27-2010, 09:46 AM
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#1
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Senior Member
Vintage RV Owners Club
Join Date: Jul 2009
Location: Beaverton, OR
Posts: 312
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HWH jack levelers...: Run off Chassis or Coach batts?
curious.
__________________
fkloster = Fritz, Erin, Sadie, Bo (& Lucy the Weim)
1991 Beaver Marquis 40' (1,225 ft. lbs. torque)
2011 JGC Overland Summit Toad / U.S Gear Brake
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04-27-2010, 09:55 AM
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#2
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Senior Member
Alpine Owners Club
Join Date: Sep 2005
Location: Traveling in North America
Posts: 2,248
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Depends upon how your manufacturer set them up. Ours run off the house batteries.
Barb
__________________
Barbara & David O'Keeffe
Figment II (Alpine 2002 36 MDDS)
On The Road since 2006
Blog
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04-27-2010, 06:21 PM
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#3
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Senior Member
Freightliner Owners Club
Join Date: Mar 2002
Location: Western WA
Posts: 1,294
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Most Freghtliner chassis units run off the chassis batteries. Do you have electrical schematics for your unit?
__________________
Sold the Motorhome, joined the fully retired gang. '07 Winnebago Journey 34H, ISB-02, MH2500
Toad - '08 Ford Taurus X, Blue Ox, Aventa
US Gear UBS
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04-27-2010, 07:35 PM
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#4
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Senior Member
Workhorse Chassis Owner
Join Date: Mar 2003
Location: Hudson,Ma.
Posts: 123
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mine chassis batteries 
__________________
George & Joni Hudson Ma.
2003 Itasca Suncruiser 35u - Workhorse W22, Henderson SuperSteer Rear Trac Bar, TST truck tire press and temp mon sys. Toad = 2008 Grand Cherokee , with Brake Buddy
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04-28-2010, 05:00 AM
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#5
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Senior Member
Join Date: May 2007
Location: Northeast PA
Posts: 1,146
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Should be relatively easy to find out.
If they power up only when the ignition is on, they run off the chassis batteries. If they run without the ignition on, the house batteries.
However, if they power up regardless, try turning each battery bank off at the isolation switches to see which must be on before they operate.
My Alpine runs off the chassis battery.
__________________
Bob (Squidly Down Under) & Peg - 2013 Ford Focus pushing a 2011 Phoenix Cruiser 2552S
"In God we trust" to preserve our country and bring our Troops safely home.
Carry on, regardless..................
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04-28-2010, 09:23 AM
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#6
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Moderator Emeritus
Join Date: Oct 2002
Location: Sheboygan, WI
Posts: 5,644
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Generally (but not always) the jacks are installed on the chassis by the chassis manufacturer, therefore they are connected to the chassis batteries. The control panel and relays are shipped loose to the coach builder for them to install. Rarely will a coach builder relocate them to the house batteries.
__________________
Mark & Leann Quasius
2016 Cornerstone 45A
2020 Jeep Gladiator Rubicon
2021 Jeep Wrangler Rubicon
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05-06-2010, 05:10 PM
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#7
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Senior Member
Join Date: Sep 2007
Location: dagray
Posts: 158
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Mine run off the Chassis battery.
Don Gray
Winnebago Sightseer
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05-06-2010, 05:25 PM
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#8
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Senior Member
Alpine Owners Club Texas Boomers Club
Join Date: Jan 2009
Location: United States
Posts: 1,357
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Both on mine
__________________
Michael (Home base Northern IL)
Alpine 40MDTS (gone but not forgotten)
Now Dynaquest 390XL
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05-07-2010, 03:45 AM
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#9
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: Aug 2006
Posts: 1,500
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Chassis batteries on mine. That is why I like to run engine to supply full charge power to the pump. Do the same for big slide. Little slide I'll run in and out on whatever the batteries have.
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05-07-2010, 04:43 AM
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#10
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Senior Member
Alpine Owners Club Texas Boomers Club
Join Date: Jan 2009
Location: United States
Posts: 1,357
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To Clarify, the control works off the chassis, the pump works off the coach
__________________
Michael (Home base Northern IL)
Alpine 40MDTS (gone but not forgotten)
Now Dynaquest 390XL
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05-07-2010, 07:10 AM
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#11
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Senior Member
Vintage RV Owners Club
Join Date: Jul 2009
Location: Beaverton, OR
Posts: 312
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Ok i did a an analysis... and on my coach... when the main HWH jack pump kicks on it DEFINATELY pulls of the coach battery array... NOT the Chassis. Now to the issue.... the HWH display light that shows "Red Battery" is coming on and jacks won't kick down. Battery has plenty of juice. Ideas?
__________________
fkloster = Fritz, Erin, Sadie, Bo (& Lucy the Weim)
1991 Beaver Marquis 40' (1,225 ft. lbs. torque)
2011 JGC Overland Summit Toad / U.S Gear Brake
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05-08-2010, 04:05 AM
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#12
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Moderator Emeritus
Country Coach Owners Club Appalachian Campers Gulf Streamers Club
Join Date: Mar 2000
Location: Chattanooga, Tn.
Posts: 12,060
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Try starting the generator if you are not connected to shore power and hold down the aux start or boost switch if you are. Re-try jacks and let us know what you find. As has been mentioned a good ground is as important as good battery power.
__________________
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7
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05-11-2010, 11:43 AM
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#13
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Senior Member
Alpine Owners Club Texas Boomers Club
Join Date: Jan 2009
Location: United States
Posts: 1,357
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check your wiring terminals, loose or corroded power cables will do that.
__________________
Michael (Home base Northern IL)
Alpine 40MDTS (gone but not forgotten)
Now Dynaquest 390XL
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05-11-2010, 03:48 PM
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#14
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Senior Member
Join Date: Feb 2010
Location: Sunnyvale, CA
Posts: 1,195
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Mine run off the chassis batteries... if I don't turn the ignition to 'ON' they don't run.
Steve
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Linear Mode
