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Topic: HWH Travel mode (Read 3810 times) previous topic - next topic

Re: HWH Travel mode

Reply #50
The amount of air coming from ride height value is minimal. Rod is pointing up and is tight.
Gary & Kathy 🐶 Angus

 94 GV u280 36' build #4419
Cummings c8.3m, Alison MD 3060

Re: HWH Travel mode

Reply #51
The amount of air coming from ride height value is minimal. Rod is pointing up and is tight.

If air is coming out of ride height control and coach is low then as Elliot has said either the adjustment is off, or bad height valve.
2014 ih45  (4th Foretravel owned)
 1997 36' U295 Sold in 2020, owned for 19 years
  U240 36' Sold to insurance company after melting in garage fire
    33' Foretravel on Dodge Chassis  Sold very long time ago

Re: HWH Travel mode

Reply #52
Just back from under RV looking for leaks.
None found with exception of small amount coming from bottom of ride height control.
Took air line off one airbag. And disconnected linkage to controller. Put HWH in travel mode.
With controller linkage pointing down there is no air going to airbag. With controller linkage point up lots of air goes to airbag but don't know how much pressure. Connected air line back to airbag with linkage up airbag raises RV about an inch off wheel.
Hypotheses: there must be a internal leak somewhere. But if there is where is it going.
Gary & Kathy 🐶 Angus

 94 GV u280 36' build #4419
Cummings c8.3m, Alison MD 3060

Re: HWH Travel mode

Reply #53
Your brake tanks are under the nose of your coach.  If the same as ours the tank on the driver side is the rear brake tank.  This is the origin of air line (#27) that supplies the pressure to rear 6-pack.  You might take a look at that air line where it connects to tank.  See if you can detect any leaks.  See photos in link below for valve arrangements at brake tanks.

Air Tank Valves R&R

 
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: HWH Travel mode

Reply #54
Going to auto store to get pressure gauge so I can see how much pressure is to airbags
Gary & Kathy 🐶 Angus

 94 GV u280 36' build #4419
Cummings c8.3m, Alison MD 3060

Re: HWH Travel mode

Reply #55
Gary, By chance did you recently place anything under your Couch? The level sensor is located there near the drawer under the couch, attached to the floor. It could have gotten bumped...  ::)  If you jack-knife the sleeper couch look on the floor on the left side next to the closed drawer..
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Gerry & Brenda
CHARLOTTE HARBOR, FL
1994 Grand Villa - # 4466
U300 Unihome - 6V92 Detroit
4 speed Allison - Jake Brake

Re: HWH Travel mode

Reply #56
Connected gauge to line going to airbag couldn't get a tee so just attaching to line of one air bag on right rear. Built pressure on tanks then put in travel mode. Pressure built up to over 105psi.
Would think that would lift the RV.
Does anyone know what pressure it takes to lift your RV?
Then connected to one of the front airbag lines and it reached ride height at 40psi.?

Gary & Kathy 🐶 Angus

 94 GV u280 36' build #4419
Cummings c8.3m, Alison MD 3060

Re: HWH Travel mode

Reply #57
Does anyone know what pressure it takes to lift your RV?
The book says:
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"


Re: HWH Travel mode

Reply #59
Most systems are designed to operate well below max output I would guess pressure between 60 and 90 psi. Should raise the RV to travel height.
Scratching high and low

  :headwall:
Gary & Kathy 🐶 Angus

 94 GV u280 36' build #4419
Cummings c8.3m, Alison MD 3060

Re: HWH Travel mode

Reply #60
Here is from my ih45. Not sure when picture was taken.  Maybe in a turn. This is heavy coach.  Only 2 air bags for front, drive has 4 so less air needed
2014 ih45  (4th Foretravel owned)
 1997 36' U295 Sold in 2020, owned for 19 years
  U240 36' Sold to insurance company after melting in garage fire
    33' Foretravel on Dodge Chassis  Sold very long time ago

Re: HWH Travel mode

Reply #61
With this information, thinking air bag has a leak?
2014 ih45  (4th Foretravel owned)
 1997 36' U295 Sold in 2020, owned for 19 years
  U240 36' Sold to insurance company after melting in garage fire
    33' Foretravel on Dodge Chassis  Sold very long time ago

Re: HWH Travel mode

Reply #62
With this information, thinking air bag has a leak?
or something physically restricting it from coming up (siezed shock?)
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: HWH Travel mode

Reply #63
With this information, thinking air bag has a leak?

That was my thought after post #52 where plenty of air being sent to air bags on the side in question, but the other side not coming up much more is curious (unless leak is so gross that there's not enough air left for other side).
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: HWH Travel mode

Reply #64
Got one more test to do.

Instead of trying to raise the rear, try raising the side. This will take the other rear air bags out of the loop.

It is very possible that one of the 2 bags is leaking. You could hook up each bag to an external air source and see if leak shows up
2014 ih45  (4th Foretravel owned)
 1997 36' U295 Sold in 2020, owned for 19 years
  U240 36' Sold to insurance company after melting in garage fire
    33' Foretravel on Dodge Chassis  Sold very long time ago

Re: HWH Travel mode

Reply #65
When raising the sides only left side front rises 8or 9 in Left rear raises about 6in.
Rising right side front rises 8 or 9in. Rear rises 1.5in.
Going to find tee so I can see what's going on with RR it either has a Leah or something preventing it from going up.
Gary & Kathy 🐶 Angus

 94 GV u280 36' build #4419
Cummings c8.3m, Alison MD 3060

Re: HWH Travel mode

Reply #66
After getting fitting to tee into line when trying to get to travel height only getting 70 psi.
Therefore the air bag I am teeing into must be leaking. Knowing that I still cannot feel the air from the leak.
Any one know what airbag i need?
And how to get RV raised enough to change it.
Gary & Kathy 🐶 Angus

 94 GV u280 36' build #4419
Cummings c8.3m, Alison MD 3060

Re: HWH Travel mode

Reply #67
Make sure it is the air bag and not something else. Disconnect the air line going to the air bag and
check the pressure. If it pressures up than that bag is probably the problem if it doesn't do the other
bag. If it pressures up that bag is the problem if not the leak is somewhere else. Jack up the frame
and then put your blocks in. 
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: HWH Travel mode

Reply #68
Make sure it is the air bag and not something else. Disconnect the air line going to the air bag and
check the pressure. If it pressures up than that bag is probably the problem if it doesn't do the other
bag. If it pressures up that bag is the problem if not the leak is somewhere else. Jake up the frame
and then put your blocks in. 

Thanks but that is what I did in post 56
Gary & Kathy 🐶 Angus

 94 GV u280 36' build #4419
Cummings c8.3m, Alison MD 3060

Re: HWH Travel mode

Reply #69
After getting fitting to tee into line when trying to get to travel height only getting 70 psi.
Therefore the air bag I am teeing into must be leaking. Knowing that I still cannot feel the air from the leak.
Any one know what airbag i need?
And how to get RV raised enough to change it.


From the testing you did, I am now 98% feel your problem is a leaking air bag or bags. If after airing up with gauge in line you got the same 105 PSI reading and the side did not go up, only then would I think you have a problem keeping the side raising

There are a number of threads on here about where to buy and what air bags to buy. If you do a search you should find them and if you can't, I bet Michelle, the search expert, will.
2014 ih45  (4th Foretravel owned)
 1997 36' U295 Sold in 2020, owned for 19 years
  U240 36' Sold to insurance company after melting in garage fire
    33' Foretravel on Dodge Chassis  Sold very long time ago

Re: HWH Travel mode

Reply #70
That is a common air bag.  Part Number W01-358-9448 should be available at most part stores..
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Gerry & Brenda
CHARLOTTE HARBOR, FL
1994 Grand Villa - # 4466
U300 Unihome - 6V92 Detroit
4 speed Allison - Jake Brake

Re: HWH Travel mode

Reply #71
Do you know which air bag is leaking.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: HWH Travel mode

Reply #72
Thanks Gerry
Oldguy rear most passenger side
Gary & Kathy 🐶 Angus

 94 GV u280 36' build #4419
Cummings c8.3m, Alison MD 3060

Re: HWH Travel mode

Reply #73
Found a mobile RV mechanic. He is trying to find a airbag. So cleaned some love bugs off RV and enjoying campground  :sleepy:
Gary & Kathy 🐶 Angus

 94 GV u280 36' build #4419
Cummings c8.3m, Alison MD 3060