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Old 03-22-2013, 01:42 PM   #1
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HWH hydraulic fluid checks/2004 Allegro

Hi,
I've had a chronic, intermittent issue with my alarm going off when driving in temps ~70 and higher--and HWH panel indicating my front jacks aredtopping dropping. On the last occasion, after the dealer had changed out the circuit board, springs & sensors, the alarm went off while driving---~70 outside---for ~30 minutes, or so, until I hit a cool, shaded spot along a lake---after ~10 minutes of "cool" and reduced speed, the alarm shut off. Then I hit the cool weather coast and it was fine.

1. Does anyone know where the reservoir is located to check hydraulic fluid levels?

2. Does anyone know if the hydraulic fluid system for the jacks & slides is separate from the engine cooling system.

3. Any other ideas welcome.

Thank you!

Ms. Teal Star
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Old 03-22-2013, 02:27 PM   #2
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Quote:
Originally Posted by tealstar View Post
Hi,
I've had a chronic, intermittent issue with my alarm going off when driving in temps ~70 and higher--and HWH panel indicating my front jacks aredtopping dropping. On the last occasion, after the dealer had changed out the circuit board, springs & sensors, the alarm went off while driving---~70 outside---for ~30 minutes, or so, until I hit a cool, shaded spot along a lake---after ~10 minutes of "cool" and reduced speed, the alarm shut off. Then I hit the cool weather coast and it was fine.

1. Does anyone know where the reservoir is located to check hydraulic fluid levels?
The tank must be black and when checking all jacks must be up that way all the oil is back to the tank. It should have a cap you unscrew and should have a dip stick on it. Should take something like Dextron3 ATF or AW 32 hyd oil.


2. Does anyone know if the hydraulic fluid system for the jacks & slides is separate from the engine cooling system.

The cooling system has nothing to do with your hyd system, 2 different systems.
3. Any other ideas welcome.
I have air leveling but I do have a hyd system that runs the steering and hyd fan. You may need to change the filters in the hyd tank when you find it.

Thank you!

Ms. Teal Star
1. Does anyone know where the reservoir is located to check hydraulic fluid levels?
The tank must be black and when checking all jacks must be up that way all the oil is back to the tank. It should have a cap you unscrew and should have a dip stick on it. Should take something like Dextron3 ATF or AW 32 hyd oil.


2. Does anyone know if the hydraulic fluid system for the jacks & slides is separate from the engine cooling system.

The cooling system has nothing to do with your hyd system, 2 different systems.
3. Any other ideas welcome.
I have air leveling but I do have a hyd system that runs the steering and hyd fan. You may need to change the filters in the hyd tank when you find it.
2 stroker
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Old 03-31-2013, 05:49 PM   #3
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Quote:
Originally Posted by tealstar View Post
Hi,
I've had a chronic, intermittent issue with my alarm going off when driving in temps ~70 and higher--and HWH panel indicating my front jacks aredtopping dropping. On the last occasion, after the dealer had changed out the circuit board, springs & sensors, the alarm went off while driving---~70 outside---for ~30 minutes, or so, until I hit a cool, shaded spot along a lake---after ~10 minutes of "cool" and reduced speed, the alarm shut off. Then I hit the cool weather coast and it was fine.

1. Does anyone know where the reservoir is located to check hydraulic fluid levels?

2. Does anyone know if the hydraulic fluid system for the jacks & slides is separate from the engine cooling system.

3. Any other ideas welcome.

Thank you!

Ms. Teal Star
I'm in a Winnebago so may be different. Still HWH. My hydraulic system has jacks and slides together with pump/valves/reservoir all together on the driver side mid coach. I would suggest that looking for an assembly with several pipes would be a good start. As big as a bread box... give or take.
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Old 03-31-2013, 06:00 PM   #4
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Brother in laws Tiffin had similar issues, hot temps,jack warning, stop and cycle the jack stowing procedure, and on and on. He had health issues and sold before we figured it out. Fluid level was not the problem.
However weak return springs on the jacks just might be.
Recent post on the cost of springs , with pictures, I'll track it down and direct you to it.
DTW. Any time I'm not sure of where the pump & resivoir are on a unit , I have some one run the pump and track it down by the noise . HWH, pump is attached to the resivoir.
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Old 04-01-2013, 12:33 AM   #5
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Found, the other post,
Go to .. Newmar Owners forum.. look for.. HWH Spring Replacement .. by Tyka, and check post #2 by Max Hubrich he had a similar problem to yours.
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