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10-18-2020, 05:55 PM
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#1
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Senior Member
Alpine Owners Club
Join Date: Aug 2010
Location: Cincinnati, OH
Posts: 281
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Battery Compartment - Item Identification
2005 Alpine Coach 36' FDDS
See attached photo. Can anyone tell me what this thing is?
As you can see it is in the battery compartment.
Thanks
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10-18-2020, 06:06 PM
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#2
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Senior Member
Join Date: Feb 2019
Location: Walton, KY
Posts: 351
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Hi,
This is the hydraulic equalization cylinder for the bedroom slide. It belongs to the HWH system.
Jörg
__________________
2006 Alpine 34 FDDS
2013 Honda CRV
Blue Ox, Patriot
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10-18-2020, 07:15 PM
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#3
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Senior Member
Alpine Owners Club
Join Date: Aug 2010
Location: Cincinnati, OH
Posts: 281
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Thanks
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10-19-2020, 10:32 AM
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#4
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Senior Member
Join Date: Jun 2018
Location: Yavapai
Posts: 574
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Quote:
Originally Posted by Alpine06
This is the hydraulic equalization cylinder for the bedroom slide.
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Leaks are rare, but happen (ask me). Placing a (pricey) Vansco below any possible source of liquid would not be something I would design; quite likely would relocate.
__________________
2007 Alpine SE 34FDDS + Cherokee Trailhawk
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10-19-2020, 10:34 AM
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#5
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Senior Member
Join Date: Feb 2019
Location: Walton, KY
Posts: 351
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Quote:
Originally Posted by whalepirot
Leaks are rare, but happen (ask me). Placing a (pricey) Vansco below any possible source of liquid would not be something I would design; quite likely would relocate.
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I think many of us have added a channel above the Vasco system to divert any oil leaking. This is still on my to do list and I think it is important as you pointed already out.
__________________
2006 Alpine 34 FDDS
2013 Honda CRV
Blue Ox, Patriot
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10-19-2020, 11:19 PM
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#6
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Senior Member
Join Date: Aug 2020
Location: Grover Beach, CA
Posts: 123
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so now that us newbies know what it is,.....what's its purpose ?
__________________
2001 36FDDS
#74386
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10-20-2020, 08:16 AM
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#7
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Senior Member
Alpine Owners Club
Join Date: Mar 2009
Location: Surprise, AZ
Posts: 836
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The slideouts typically employ 2 rams which need to be equalized to avoid jamming when extending or retracting.
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Bob Bowers (Surprise, AZ)
2003 Alpine Coach 40' FDTS
2014 Jeep Cherokee Lattitude
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10-20-2020, 12:46 PM
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#8
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Member
Join Date: Mar 2019
Posts: 57
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Quote:
Originally Posted by bcbowers
The slideouts typically employ 2 rams which need to be equalized to avoid jamming when extending or retracting.
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Stupid question. Do these hydraulic equalization cylinders ever need adjustment? Sometimes our main slide "sticks" on one side and then pops out. It's unnerving to watch and listen to. I've lubed the rams underneath the slide with T-9 with applied Slide-Out Dry Lube Protectant on the side and bottom rubber seals. The problem is far less prevalent when we're not level and don't have our levelers down.
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Curtis & Stevann
Escondido, CA
2004 Alpine 34FDDS (400HP)/ 2016 Rubicon JKU
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10-20-2020, 01:10 PM
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#9
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Senior Member
Join Date: Feb 2019
Location: Walton, KY
Posts: 351
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Quote:
Originally Posted by Fattire_Bike
Stupid question. Do these hydraulic equalization cylinders ever need adjustment? Sometimes our main slide "sticks" on one side and then pops out. It's unnerving to watch and listen to. I've lubed the rams underneath the slide with T-9 with applied Slide-Out Dry Lube Protectant on the side and bottom rubber seals. The problem is far less prevalent when we're not level and don't have our levelers down.
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The synchronizing (or equalization) cylinder has 2 pistons and some valves inside. I do not know of any possible adjustment.
So my large room slide sticks in the upper right hand corner ... sometimes. I used to always level the coach and then extended the room slide. I have changed this practice and extend the room slide before I use the leveling jacks. Not once got the corner stuck.
This shows me that the precision / repeatability of the frame not being twisted by the jacks is not all that great. It also shows that the frame is stiff enough so that it only allows for minimum twist sitting on inflated airbags.
Anyways give it a try.
__________________
2006 Alpine 34 FDDS
2013 Honda CRV
Blue Ox, Patriot
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10-20-2020, 04:01 PM
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#10
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Senior Member
Join Date: Nov 2005
Posts: 7,400
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...not sure when it changed but some model years of Alpine [mine is an early 2003] "require" the jacks to be extended before the main slide will deploy....never tried it, but suspect you could manually lower the jacks slightly and "fool" the interlock into allowing the main slide to deploy....
PS--over time, the main slide can shift left or right within the wall opening and along with being off height-wise[see paint lines]…..this can cause slide corners to hang up or rub on side wall[see paint scrapes] sometimes--both of these conditions can be adjusted/corrected...
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Old Scout
2015 IH45 Foretravel
2003 Alpine 40' MDTS [Sold]
New Braunfels, Texas
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10-20-2020, 04:08 PM
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#11
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Senior Member
Join Date: Feb 2019
Location: Walton, KY
Posts: 351
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Quote:
Originally Posted by Old Scout
...not sure when it changed but some model years of Alpine [mine is an early 2003] "require" the jacks to be extended before the main slide will deploy....never tried it, but suspect you could manually lower the jacks slightly and "fool" the interlock into allowing the main slide to deploy....
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Ugh I did not know that and assumed all HWH controls were the same.
__________________
2006 Alpine 34 FDDS
2013 Honda CRV
Blue Ox, Patriot
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10-20-2020, 04:35 PM
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#12
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Senior Member
Join Date: Jun 2018
Location: Yavapai
Posts: 574
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Quote:
Originally Posted by Old Scout
...not sure when it changed but some model years of Alpine [mine is an early 2003] "require" the jacks to be extended before the main slide will deploy.
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Interesting and first I heard that. Our '07 has no such lockout, unless it was bypassed by the PO. The upper right bind mentioned is an occasional thing that leveling has little effect on.
The manual recommends leveling prior.
I now need to check for the shift mentioned and how to remedy.
__________________
2007 Alpine SE 34FDDS + Cherokee Trailhawk
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10-20-2020, 05:18 PM
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#13
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Senior Member
Join Date: Nov 2005
Posts: 7,400
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...to answer the question--believe the equalizer tubes are self-adjusting ….like bleeding trapped air, a couple cycles of fully extended and fully closed slides should re-sync everything...
__________________
Old Scout
2015 IH45 Foretravel
2003 Alpine 40' MDTS [Sold]
New Braunfels, Texas
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10-20-2020, 08:27 PM
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#14
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Registered User
Join Date: Oct 2016
Posts: 3,026
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Quote:
Originally Posted by whalepirot
Interesting and first I heard that. Our '07 has no such lockout, unless it was bypassed by the PO. The upper right bind mentioned is an occasional thing that leveling has little effect on.
The manual recommends leveling prior.
I now need to check for the shift mentioned and how to remedy.
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Agree. It is recommended to level the coach by deploying the jacks prior to extending the slides. There is no physical “lock out” on our 2005 that prevents the slides from being extended while the jacks are retracted.
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