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Old 09-01-2012, 03:37 AM   #1
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Hydraulic jacks wont drop down

OK, in position, engine running OR in Accessory, parking brake set, Main power on the panel and flip the auto level switch and either one or two of the jacks will extend, but not drop and extend. It has a Hoppy control panel.

Hydraulic jacks with coil springs on them.

The left front light is white or yellow, is it to low on that corner to start the process?

Please walk me through it as the seller told me to hit the power button and select auto level and it would do the rest. I saw the key position stuff in here.

In my sons front yard, but I'd still like to level it up but have no clue how to do it.

I have the Coachmen manual and the P30 manual neither cover leveling.

1988 Coachmen Sportscoach Pathfinder DL S

No clue on the jacks. It all humms and all four will extend in place they just won't drop down. Thanks in advance! Have a safe holiday!
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Old 09-01-2012, 04:46 AM   #2
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You have a gasser

with my diesel
I have to set the brake
be in neutral
have the key turned to accs.
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Old 09-01-2012, 06:35 AM   #3
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Check the hydraulic fluid level in the reservoir.

The engine should not be running. That is usually an interlock to prevent them from going down, actually on many MH it is an interlock to retract them automatically. Think about it for a minute.
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Old 09-01-2012, 10:48 AM   #4
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I'll give it a try, thanks mate!

Quote:
Originally Posted by szy View Post
You have a gasser

with my diesel
I have to set the brake
be in neutral
have the key turned to accs.
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Old 09-01-2012, 10:50 AM   #5
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I figured the engine running would be a no no. I'll check the fluid levels this afternoon, roasting here with major humidity right now. Thanks mate!

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Originally Posted by mgscott4 View Post
Check the hydraulic fluid level in the reservoir.

The engine should not be running. That is usually an interlock to prevent them from going down, actually on many MH it is an interlock to retract them automatically. Think about it for a minute.
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Old 09-01-2012, 01:30 PM   #6
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HWH jacks I discovered.

OK, here's the weird thing. I was first told it was a 1989 model, I found the manual PDF through a member on here. When we got it, the title said it is a 1988. So, the 1988 manual has nothing listed in it about leveling.

Now, upon reading through the 1989 manual, it shows the exact HWH control panel I have. The instructions in the manual are exactly what the seller told me. Park, engine running, master power on, auto leveling on and its a done deal. To retract, engine running, auto retract and that's that.

I don't know where the reservoir is located. There are cylinders behind the front bumper, but I can see no main container.

Thanks!
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Old 09-01-2012, 09:10 PM   #7
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Maybe they did not interlock them in the 80's.

Follow the hydraulic line from the jack to the pump and reservoir.
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Old 09-01-2012, 10:08 PM   #8
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Sounds like a plan. Heading back up state tomorrow. I'll play with it Monday. Have a safe holiday.


Quote:
Originally Posted by mgscott4 View Post
Maybe they did not interlock them in the 80's.

Follow the hydraulic line from the jack to the pump and reservoir.
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Old 09-02-2012, 07:48 AM   #9
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my jacks are powergear, not HWH, so I can't offer any specific help, but...

I would try using the system in manual, not auto, and verify that each jack will in fact lift it's corner. Sometimes the automatic functions are less than perfect. Sometimes the system brain needs to have its level reset. I never use auto, I can always level lower and faster than the machine can.

Go to HWH's website and find and download the manuals on your system.

On the year thing, this isn't uncommon. Manufacturers buy a bunch of chassis at once, and use em till their gone. Governements go by the chassis, by the vin number when titling. Not at all unusual to have a 89 motorhome titled as an 88.
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Old 09-02-2012, 06:45 PM   #10
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Before we left this morning my son looked underneath. He pulled the Left Front jack down and we could both see a large amount of leakage. I think the system may just be low on fluid. One curious thing, the light stays lit on the left front jack even when I'n in a parking lot. BUT, the coach does lean to the left a bit. Could be a weak spring. Don't know yet.
Thanks for the advise.
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Old 09-02-2012, 06:46 PM   #11
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What fluid would I fill this thing up with?
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Old 09-10-2012, 10:30 PM   #12
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Finally got a reply from HWH

OK, finally got a reply from HWH.

They said it is low on fluid. They said to use automatic transmission fluid.

They said Dextron 3, Mercon or their oil which is available at Camping World.

The left front jack is the one with the leak. I'll look into that repair.
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Old 09-10-2012, 11:07 PM   #13
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Quote:
Originally Posted by PirateCamper View Post
OK, here's the weird thing. I was first told it was a 1989 model, I found the manual PDF through a member on here. When we got it, the title said it is a 1988. So, the 1988 manual has nothing listed in it about leveling.
What is the year the manufacturer assigned to the complete vehicle? That is what it legally must be titled as per Federal law. If the manufacturer says it's a '89 then the title needs to be changed to conform to the law. Here is the RVIA .pdf on the law
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Old 09-11-2012, 12:43 PM   #14
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Its OK, the sellers, wife works with me. She told me it was a 1989.

When we were doing the paper work, the RV title is 1988. The VIN is 1988 as well. The chassis tag is also 1988 P37.

I knew we were getting it and I got a head start on manuals and things.

I have both manuals. I'm also half blind. I did find the Jack instructions in the 1988 manual, they were in a different place. Darn school system...
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