Reply
 
Thread Tools Display Modes
Old 01-21-2014, 06:35 PM   #1
Junior Member
 
Join Date: Jun 2013
Posts: 6
air brakes

When I release the airbrakes on my 2010 Charleston, it is not fully releasing. When I put it in drive, it does not readily move forward. I can then go to reverse and back to drive and it does ok. Also, when accelerating, I hear a small air leak. Are the two connected? Any help appreciated.
__________________

Sanford is offline   Reply With Quote
Old 01-21-2014, 06:39 PM   #2
Senior Member
 
Ford Idaho's Avatar
 
Join Date: Sep 2013
Location: Idaho
Posts: 9,840
Yes they are connected air brakes need air if it is leaking then there is not enough air for the brakes.
Brakes will release at or about 60 PSI but will be soft and unsafe.
What kind of pressure do you have showing?
__________________

__________________
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
Ford Idaho is offline   Reply With Quote
Old 01-21-2014, 06:49 PM   #3
Junior Member
 
Join Date: Jun 2013
Posts: 6
75 lbs plus. Any idea of where the leak could be?
Sanford is offline   Reply With Quote
Old 01-21-2014, 06:51 PM   #4
Phat Phrog Stunt Team
 
TURBS's Avatar
 
Join Date: Aug 2011
Location: Iowa
Posts: 34,485
If you have 75 lbs + that should be plenty to fully release brakes.

Has the unit been sitting awhile?

TURBS

dog wisperer
TURBS is offline   Reply With Quote
Old 01-21-2014, 06:53 PM   #5
Junior Member
 
Join Date: Jun 2013
Posts: 6
Setting since early November.
Sanford is offline   Reply With Quote
Old 01-21-2014, 07:00 PM   #6
Senior Member
 
Ford Idaho's Avatar
 
Join Date: Sep 2013
Location: Idaho
Posts: 9,840
Quote:
Originally Posted by Sanford View Post
75 lbs plus. Any idea of where the leak could be?

No idea at all.
How long did you let it run and build air?
Will it build air to 100-110 PSI?
__________________
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
Ford Idaho is offline   Reply With Quote
Old 01-21-2014, 07:02 PM   #7
Junior Member
 
Join Date: Jun 2013
Posts: 6
15 -20 minutes. No, it will not build up to that level.
Sanford is offline   Reply With Quote
Old 01-21-2014, 07:04 PM   #8
Senior Member
 
Capt. Mike's Avatar
 
Join Date: Dec 2012
Location: Franklin County, MO
Posts: 2,119
You should have automatic moisture ejectors on your brake system on the coach. Is that what you hear "leaking"? They will, from time to time, "spit out" (for lack of a better term) any moisture that is in the air that is delivered from the air compressor.

In this weather, if you don't have heated ejectors, they could be freezing up, and remaining open, allowing air to bleed off. 75 psi sounds a little low for air brake pressure. Our school buses used to run higher brake pressures than that.
__________________
Mike and Yvonne
and Sophie, the little white dog
2017 Columbus 320RSC
2015 Chevy Silverado 2500HD Duramax 4X4
“It's not how old you are, it's how you are old.”Jules Renard
"It's not the years...it's the mileage." - Indiana Jones
Capt. Mike is offline   Reply With Quote
Old 01-21-2014, 07:04 PM   #9
Phat Phrog Stunt Team
 
TURBS's Avatar
 
Join Date: Aug 2011
Location: Iowa
Posts: 34,485
Quote:
Originally Posted by Sanford View Post
Setting since early November.
I see this plenty.
The drum shoe surfaces rust very easily and the shoes grab tight to this rough surface and acts like brakes are applied.
If brakes are adjusted properly there's normally a minimal gap between shoe and drun surface.

Air leak may be unrelated but dont rule it out, will pressure build to over a hundred and "pop" off?

Is is relatively cold there or no?

TURBS

dog wisperer
TURBS is offline   Reply With Quote
Old 01-21-2014, 07:10 PM   #10
Senior Member
 
Ford Idaho's Avatar
 
Join Date: Sep 2013
Location: Idaho
Posts: 9,840
Quote:
Originally Posted by Capt. Mike View Post
You should have automatic moisture ejectors on your brake system on the coach. Is that what you hear "leaking"? They will, from time to time, "spit out" (for lack of a better term) any moisture that is in the air that is delivered from the air compressor.

In this weather, if you don't have heated ejectors, they could be freezing up, and remaining open, allowing air to bleed off. 75 psi sounds a little low for air brake pressure. Our school buses used to run higher brake pressures than that.
Air dryer is what they are called.

https://www.google.com/#q=truck+air+dryer
Biggest problem with them is a lot of people do not bother to service them.
I would start at the air compressor and then the air cans on the brakes.
Also check the brake air tank and see if the bleeder valve is open.
__________________

__________________
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
Ford Idaho is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Featured Campgrounds

Reviews provided by


Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 06:01 PM.