Advice re Air System

[David Hanvy]

Greetings All,
As luck would have it, I encountered my first problem with the air
system on my 89 WB 40 the morning after Rita struck a glancing blow
to east Harris County Texas. I have since been cleaning up the
debris in my yard and discarding all the ruined food which resulted
from an extended power outage and I have not taken any time to start
research on the air problem. Any advice would be appreciated
regarding the following symptoms.

Background: The coach was in a storage building but the system and
suspension were aired up due to my having left the aux air
compressor on in preparation for a possible evacuation. The morning
following the storm I planned to move the coach to my house to take
advantage of the generator and AC. When I started the engine the
system showed to be fully pressurized

Symptoms:
1) When I depressed the brake pedal for the first time, I heard
sounds associated with a large volume of escaping air.

2) The suspension will not dump and the step will not retrack.

3) The Low Air Pressure Alarm will sound after I pump the brake
pedal for a few times.

4) I can not hear any obvious air leaks under the coach after the
system airs up enough (minimum pressure) for the low air pressure
alarm to quit sounding and the aux air compressor is running to
provide additional pressure.

5) The suspension is not leaking down with (the aux air compressor
is turned off) for a couple of days now.

Thanks in advance.

David Hanvy Crosby TX 89 WB

[Howard O. Truitt]

David,
Have a friend to help let him press the brake while you listen at the wheels to
try and isolate where the leak is. Since you only hear the leak when you depress
the brake pedal it sounds like it would be at the wheel area.
Howard Truitt
86,PT40,8V92
----- Original Message -----
From: David Hanvy
To: WanderlodgeForum@yahoogroups.com
Sent: Wednesday, September 28, 2005 10:54 PM
Subject: [WanderlodgeForum] Advice re Air System


Greetings All,
As luck would have it, I encountered my first problem with the air
system on my 89 WB 40 the morning after Rita struck a glancing blow
to east Harris County Texas. I have since been cleaning up the
debris in my yard and discarding all the ruined food which resulted
from an extended power outage and I have not taken any time to start
research on the air problem. Any advice would be appreciated
regarding the following symptoms.

Background: The coach was in a storage building but the system and
suspension were aired up due to my having left the aux air
compressor on in preparation for a possible evacuation. The morning
following the storm I planned to move the coach to my house to take
advantage of the generator and AC. When I started the engine the
system showed to be fully pressurized

Symptoms:
1) When I depressed the brake pedal for the first time, I heard
sounds associated with a large volume of escaping air.

2) The suspension will not dump and the step will not retrack.

3) The Low Air Pressure Alarm will sound after I pump the brake
pedal for a few times.

4) I can not hear any obvious air leaks under the coach after the
system airs up enough (minimum pressure) for the low air pressure
alarm to quit sounding and the aux air compressor is running to
provide additional pressure.

5) The suspension is not leaking down with (the aux air compressor
is turned off) for a couple of days now.

Thanks in advance.

David Hanvy Crosby TX 89 WB




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[David Hanvy]

Howard,
Under the heading of "believe it or not" the air leak was discovered
to be a snap-in plastic air line formerly used in the "engine
heated" hot water heater system. (This water heater was taken out of
service by the former owner rather than repair a leak in the tank
but the air pressure to the fill switch located underneath the bed
was not disconnected.) The fact that the line blew off when I
pressed the brake pedal may have been a coincidence. The leak was
hard to detect due to being located under the bed with a thick
mattress on top but it was plenty loud the first time when the air
system was fully pressurized and the 1/4 inch line suddenly popped
off and depressurized in the cavity where the water pump, etc. is
located. I capped off this air line and now I'm happy to report that
the suspension will dump as designed and pumping the brake pedal no
longer rapidly depletes the air pressure.

Thanks for your help.

David Hanvy 89 WB Crosby, TX
--- In WanderlodgeForum@yahoogroups.com, "Howard O. Truitt"
wrote:
> David,
> Have a friend to help let him press the brake while you listen at
the wheels to try and isolate where the leak is. Since you only hear
the leak when you depress the brake pedal it sounds like it would be
at the wheel area.
> Howard Truitt
> 86,PT40,8V92
> ----- Original Message -----
> From: David Hanvy
> To: WanderlodgeForum@yahoogroups.com
> Sent: Wednesday, September 28, 2005 10:54 PM
> Subject: [WanderlodgeForum] Advice re Air System
>
>
> Greetings All,
> As luck would have it, I encountered my first problem with the
air
> system on my 89 WB 40 the morning after Rita struck a glancing
blow
> to east Harris County Texas. I have since been cleaning up the
> debris in my yard and discarding all the ruined food which
resulted
> from an extended power outage and I have not taken any time to
start
> research on the air problem. Any advice would be appreciated
> regarding the following symptoms.
>
> Background: The coach was in a storage building but the system
and
> suspension were aired up due to my having left the aux air
> compressor on in preparation for a possible evacuation. The
morning
> following the storm I planned to move the coach to my house to
take
> advantage of the generator and AC. When I started the engine the
> system showed to be fully pressurized
>
> Symptoms:
> 1) When I depressed the brake pedal for the first time, I heard
> sounds associated with a large volume of escaping air.
>
> 2) The suspension will not dump and the step will not retrack.
>
> 3) The Low Air Pressure Alarm will sound after I pump the brake
> pedal for a few times.
>
> 4) I can not hear any obvious air leaks under the coach after
the
> system airs up enough (minimum pressure) for the low air
pressure
> alarm to quit sounding and the aux air compressor is running to
> provide additional pressure.
>
> 5) The suspension is not leaking down with (the aux air
compressor
> is turned off) for a couple of days now.
>
> Thanks in advance.
>
> David Hanvy Crosby TX 89 WB
>
>
>
>
> SPONSORED LINKS Recreational vehicles Wanderlodge Automotive
maintenance
> Recreational vehicle dealer Used recreational vehicles
Automotive radiators
>
>
> -------------------------------------------------------------------
-----------
> YAHOO! GROUPS LINKS
>
> a.. Visit your group "WanderlodgeForum" on the web.
>
> b.. To unsubscribe from this group, send an email to:
> WanderlodgeForum-unsubscribe@yahoogroups.com
>
> c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms
of Service.
>
>
> -------------------------------------------------------------------
-----------
>
>
>
> [Non-text portions of this message have been removed]