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Old 04-26-2011, 11:06 AM   #1
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HWH 200 series, anomaly

hwh 200 series jack (4 of them)
will draw diagram as this might get confusing

-----FRONT----
-----------------
(a)-----------(b)
-----------------
-----------------
-----------------
-----------------
(c)-----------(d)
-----------------
------BACK----

Assumptions: All levels are in operate (front and back), No Leaks, Fluid Full. All jacks will eventually go down (but not as designed). All jacks retract. RV in park. Only issues with front jacks, as both rear jacks go down when in rear raise position. Issue seems to be only the front jacks.
Steps are followed in order..

1) If i place the hydraulic joystick to the front raise position only jack (a) goes down.

2) If I place the hydraulic joystick to the right raise position both jacks (b) & (d) goes down

3) If i go back to the front raise position both jacks (a) & (b) will go down (notice how jack (b) finally works in the front raise position.

Any Ideas, is there a way to reset the control device. Perhaps clean the device is needed (have not looked yet)

Thanks for any insight..
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Old 04-26-2011, 02:32 PM   #2
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Call HWH and ask them. They usually are wonderful to talk to...
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Old 04-26-2011, 06:12 PM   #3
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Hi KRIVANJ.
Yea. did..Spoke with Frank (really helpful)
.they are sending me a new board..we are thinking the contact might be flakey, or push switches (Plungers or lack of a better name) might might not be engaging evenly.
8$ part, why not try the board first...
Thanks
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Old 04-27-2011, 02:55 AM   #4
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Quote:
Originally Posted by ihbond View Post
hwh 200 series jack (4 of them)
will draw diagram as this might get confusing

-----FRONT----
-----------------
(a)-----------(b)
-----------------
-----------------
-----------------
-----------------
(c)-----------(d)
-----------------
------BACK----

Assumptions: All levels are in operate (front and back), No Leaks, Fluid Full. All jacks will eventually go down (but not as designed). All jacks retract. RV in park. Only issues with front jacks, as both rear jacks go down when in rear raise position. Issue seems to be only the front jacks.
Steps are followed in order..

1) If i place the hydraulic joystick to the front raise position only jack (a) goes down.

2) If I place the hydraulic joystick to the right raise position both jacks (b) & (d) goes down

3) If i go back to the front raise position both jacks (a) & (b) will go down (notice how jack (b) finally works in the front raise position.

Any Ideas, is there a way to reset the control device. Perhaps clean the device is needed (have not looked yet)

Thanks for any insight..
be careful not to twist the chassis by operating a front and the opposite side rear jack. you can pop the windshield out by twisting the chassis.
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Old 04-27-2011, 07:19 PM   #5
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Hi Dan L;
How so ? at the same time I assume ? Typically I only adjust to get level...
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Old 04-27-2011, 10:12 PM   #6
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Hi Dan L;
How so ? at the same time I assume ? Typically I only adjust to get level...
even operating only 1 jack can twist the chassis...
so, be careful when your system malfunctions.
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Old 04-28-2011, 07:38 AM   #7
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ihbond;

I had a similar problem on a 97 Adventure. If I remember I had to remove the top cover plate. I trimmed the carpet which allowed the plate to drop down. This gave the lever more range of movement. I also used a rat tail file to lengthen the slot that was not functioning properly. That solved my problem.

Good Luck;
Don
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Old 04-28-2011, 09:56 PM   #8
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Did not think about that!

Quote:
Originally Posted by DAN L View Post
even operating only 1 jack can twist the chassis...
so, be careful when your system malfunctions.
I typically get all 4's down first. But will now make sure that happens. Thanks for the tip!
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Old 04-28-2011, 10:00 PM   #9
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ihbond;

I had a similar problem on a 97 Adventure. If I remember I had to remove the top cover plate. I trimmed the carpet which allowed the plate to drop down. This gave the lever more range of movement. I also used a rat tail file to lengthen the slot that was not functioning properly. That solved my problem.

Good Luck;
Don
Hi Don;
Well as it stands now, I am waiting for the new circuit boards, as the other one was just so warn. Figured start there first ($8 part).

I tried dielectric grease as well...BTW If anyone out there is thinking of doing this I would suggest not to..dont put dielectric grease on the contacts (thought that would work, but made it worse).

If the board does not help, I will investigate the space\void that is occurring.

Take Care
Ian
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Old 04-28-2011, 10:28 PM   #10
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Quote:
Originally Posted by ihbond View Post
I tried dielectric grease as well...BTW If anyone out there is thinking of doing this I would suggest not to..dont put dielectric grease on the contacts (thought that would work, but made it worse).
dielectric grease, as you now know, is used to insulate rather than promote contact.

Your jacks should only work in pairs to prevent frame twisting. Either both front, both rears or both on either side. If your jacks are not operating in pairs you can twist the frame.
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Old 04-28-2011, 10:35 PM   #11
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Thanks Kix!
What i find interesting is if you operate (say the right sides) and put them 3/4 down and not touching, and then go back to the fronts and start putting them down, then the front right jack will have already had a head start and now be the only jack used to lift the coach.

From now on, I will make sure all 4 are down, before I start leveling, or is that not necessary ?
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Old 04-28-2011, 11:43 PM   #12
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Ihbond, I understand what you are saying. I don't have the same series of HWH system as you have so I'm doing some guessing here. But, I think in the instance you cite, above, the right jack already partially extended would (or should) not actually lift the coach until the left front jack "caught up" so they would both lift at the same time.
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Old 04-29-2011, 01:04 AM   #13
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kix:
on my moho with hwh jacks one front jack can and will lift the moho if it is ahead of the other front jack thereby twisting the chassis.
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Old 04-30-2011, 10:25 PM   #14
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kix:
on my moho with hwh jacks one front jack can and will lift the moho if it is ahead of the other front jack thereby twisting the chassis.
Is that the way the system was designed to operate?
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