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10-15-2017, 12:36 PM
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#1
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Member
Join Date: Mar 2017
Location: seaford va
Posts: 50
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Non working hydraulic jacks
After sitting in campsite for week got ready to leave its retract on the jacks nothing anybody got any ideas 2003mountain aire 3778
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10-15-2017, 12:59 PM
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#2
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Senior Member
Join Date: May 2016
Location: Delaware beaches
Posts: 1,164
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Not sure how long you have owned the coach or your level of experience with systems so I don't want to appear insulting or condescending. But, . . .
According to your manual, does the engine have to be running for jacks to retract? If not, normally the ignition should be in the "accessory" position. Then you press "Store" on the control pad. You then should be hearing an annoying buzzer (for which there is a cure). This assumes you have an HWH leveling system.
__________________
2005 Beaver Monterey 36' 400 hp Cat C9 Sold 9/20
2004 Newmar DS 4009 DP Sold 8/18
Delaware beaches ----- DW & Kip the Wonder Dog
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10-15-2017, 01:03 PM
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#3
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Member
Join Date: Mar 2017
Location: seaford va
Posts: 50
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Yes I have the buzzer yes the switch was on when I push the button for up or down it just clicks it does not activate
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10-15-2017, 01:16 PM
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#4
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Moderator Emeritus
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
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Take a look at the front of your reservoir tank for jack system under hood will be to your right below you.
On the face of tank you will see a solenoid with wiring to pump.
On one of these wires you will see a fuse holder if it doesn't fall apart open it and check the fuse if it doesn't fall apart.
The FUSE I think was a 45 amp fuse for the pump.
You can try a new fuse but the holder may just fall apart you can twist the wires together to get jack system working and disconnect after doing so, taping the battery end wire.
When you get home buy a auto reset circuit braker for 45 amp and mount on shelf near your hood opening. You wil have to splice out wiring to mount the braker after you have it mounted paint with liquid tape for protection.
Its possible the motor mounting bolts have loosened and need to be tightened so motor has its ground back to battery power..
I believe you have a Workhorse chassis if you need info on that let me know.
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10-15-2017, 02:19 PM
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#5
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Member
Join Date: Mar 2017
Location: seaford va
Posts: 50
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I will go out and check that as soon as the race is over thanks for responding
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10-15-2017, 02:36 PM
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#6
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Senior Member
Join Date: Jun 2012
Location: AB
Posts: 7,587
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Quote:
Originally Posted by don mccoy
Yes I have the buzzer yes the switch was on when I push the button for up or down it just clicks it does not activate
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If you hear a click when you push the up or down button, would indicate there is power and the fuse is OK. But to retract the Jacks you want to press the Store button. Not the up or down buttons.
When you hit Store, it activates a solenoid that opens the system to allow fluid to drain back to the reservoir. The Jacks retract using spring tension.
__________________
2019 Unity LTV CB, pushed by a 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake
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10-15-2017, 02:37 PM
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#7
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Junior Member
Join Date: Oct 2016
Posts: 14
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Can you explain the fix for the annoying buzzer
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10-15-2017, 02:40 PM
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#8
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Senior Member
Join Date: Jun 2012
Location: AB
Posts: 7,587
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Well, you can track down the buzzer and pull the wire off or better, just put a piece of Duct Tape over it to quiet it down.
__________________
2019 Unity LTV CB, pushed by a 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake
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10-15-2017, 04:10 PM
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#9
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Member
Join Date: Mar 2017
Location: seaford va
Posts: 50
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Yes the problem is when I hit store it does not drain back
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10-15-2017, 05:08 PM
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#10
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Moderator Emeritus
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2004
Posts: 30,785
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Put your key turned in the ACC position to stop buzzer.
The solenoids need to open for fluid to drain back to tank, your springs are what forses the fluid back may have a power problem.
All your solenoids have ground wires,white, that go to a ground bolt welded to chassis frame there was a problem with them because the bolt weld was broken on chassis frame.
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10-15-2017, 06:13 PM
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#11
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Senior Member
Join Date: Jun 2009
Location: Highland,IL.
Posts: 1,143
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 From experience on my 2005 MADP- take loose the HWH ground wire & clean it thoroughly- wire brush- apply dielectric grease & reinstall it. The ground connection gets corroded and on DC it won't make the circuit.
 Happy Trails
__________________
Capt. Bill
2014 Newmar Mountain Aire Diesel 4364
2009 Ram 1500 Crew cab toad
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10-15-2017, 06:23 PM
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#12
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Member
Join Date: Mar 2017
Location: seaford va
Posts: 50
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Thank you sir I will try in am
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10-15-2017, 08:35 PM
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#13
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Senior Member
Join Date: Jan 2016
Posts: 235
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Quote:
Originally Posted by Sandy Swede
Not sure how long you have owned the coach or your level of experience with systems so I don't want to appear insulting or condescending. But, . . .
According to your manual, does the engine have to be running for jacks to retract? If not, normally the ignition should be in the "accessory" position. Then you press "Store" on the control pad. You then should be hearing an annoying buzzer (for which there is a cure). This assumes you have an HWH leveling system.
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what's the cure for that annoying buzzer,
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10-15-2017, 08:41 PM
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#14
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Senior Member
Vintage RV Owners Club Fleetwood Owners Club
Join Date: May 2012
Location: Anchorage, Alaska
Posts: 145
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Do you have the parking brake on?
__________________
Mike, Liz and Zeeva (Chihuahua) in a 1993 Fleetwood 29 foot Coronado, living the RV life in the Great Land of Alaska 
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