Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 09-05-2014, 04:48 PM   #1
Junior Member
 
Join Date: Jan 2007
Location: Maryland
Posts: 20
Mystery Part

Please tell me what are these two cylindrical items (see pix); and what are the yellow rubber plugs?

These two items/parts are located inside and a little forward of each rear wheel. I think they have something to do with air brakes or air suspension.

In addition, I noticed a yellow rubber plug on the front of each ~ are these access ports to the inside of the metal cover?

What ever these are ~ is it an owner serviceable item?

Thnx

P.S. I washed the left plug so it would show in the picture ~ not a fluid leak.
Attached Thumbnails
Click image for larger version

Name:	DSCF7693.jpg
Views:	96
Size:	230.7 KB
ID:	73076   Click image for larger version

Name:	DSCF7692.jpg
Views:	97
Size:	218.5 KB
ID:	73077  

__________________

__________________
ChazzRV is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 09-05-2014, 04:57 PM   #2
RVM#87 / Senior Member
 
DieselTech39's Avatar


 
Solo Rvers Club
Join Date: Jul 2014
Location: Ham Lake, MN
Posts: 3,038
Quote:
Originally Posted by ChazzRV View Post
Please tell me what are these two cylindrical items (see pix); and what are the yellow rubber plugs?

These two items/parts are located inside and a little forward of each rear wheel. I think they have something to do with air brakes or air suspension.

In addition, I noticed a yellow rubber plug on the front of each ~ are these access ports to the inside of the metal cover?

What ever these are ~ is it an owner serviceable item?

Thnx

P.S. I washed the left plug so it would show in the picture ~ not a fluid leak.
They are your spring brake chambers, aka parking brakes. The yellow plug is removed to "cage" the brakes if you are unable to release them with air pressure. If you do release them mechanically do not drive the rig because it will limit the brake application on that axle.
__________________

__________________
Have a wonderful day!
Ken (RVM 87)
FT DP Wanna B The journey is the destination!
Retired & perfecting procrastination!
DieselTech39 is offline   Reply With Quote
Old 09-05-2014, 05:00 PM   #3
Senior Member
 
gruelens's Avatar
 
Join Date: Jul 2012
Posts: 1,292
You have air brakes. The cylindrical items are brake chambers. The yellow plug is an inspection port. No need for the layman to remove plug. The hole is used when caging brakes during repairs.
__________________
George R. - Fulltiming since January '03
2007 Newmar Mountain Aire 3991
2012 Chevy Malibu LT1
gruelens is online now   Reply With Quote
Old 09-05-2014, 05:08 PM   #4
Junior Member
 
Join Date: Jan 2007
Location: Maryland
Posts: 20
Thanks for the insight!

How can I determine if the brakes are / are not caged.

The reason I'm inquiring ~ I found a DOLLAR GENERAL plastic shopping bag wrapped around the stem of the yellow plug; apparently this pulled the plug out of the cylinder-hole. For extra insurance ~ I'd like to confirm all is in good order.

Thnx
__________________
ChazzRV is offline   Reply With Quote
Old 09-05-2014, 05:13 PM   #5
RVM#87 / Senior Member
 
DieselTech39's Avatar


 
Solo Rvers Club
Join Date: Jul 2014
Location: Ham Lake, MN
Posts: 3,038
Quote:
Originally Posted by ChazzRV View Post
Thanks for the insight!

How can I determine if the brakes are / are not caged.

The reason I'm inquiring ~ I found a DOLLAR GENERAL plastic shopping bag wrapped around the stem of the yellow plug; apparently this pulled the plug out of the cylinder-hole. For extra insurance ~ I'd like to confirm all is in good order.

Thnx
Pretty much if you have brakes that stop the coach IMO they are not caged. If you want to check and have a helper you can have them apply the brakes by the pedal while you watch for movement of the slack adjuster...that is the lever that the linkage from the chamber is attached to.
__________________
Have a wonderful day!
Ken (RVM 87)
FT DP Wanna B The journey is the destination!
Retired & perfecting procrastination!
DieselTech39 is offline   Reply With Quote
Old 09-05-2014, 05:15 PM   #6
Junior Member
 
Join Date: Jan 2007
Location: Maryland
Posts: 20
Thanks ~ I really appreciate the I nfo.
__________________
ChazzRV is offline   Reply With Quote
Old 09-05-2014, 06:03 PM   #7
Senior Member
 
Join Date: Nov 2012
Location: Keeseville ny
Posts: 361
That hole with the yellow plug is there so you can release brake or compress the spring and take the can apart and change the brake diaphragm. This should never be done by someone with no air brake knowledge.
__________________
cwit is offline   Reply With Quote
Old 09-05-2014, 06:21 PM   #8
Senior Member
 
Hooligan's Avatar
 
Freightliner Owners Club
Join Date: Apr 2002
Location: Pensacola
Posts: 2,209
Here is a good manual on air brakes. It will give you some of the checks to be done before each trip to ensure your air brake system is working properly. (page 85)

http://www.mpi.mb.ca/PDFs/AirBrakeMa...alComplete.pdf

The explanation for the spring brake chamber is on page 34...
__________________
Hooligan, Pensacola, Fl -U.S. Coast Guard 1956-1985
2016 Thor Siesta Sprinter 24ST diesel
Our Pug "Lily" & "George" the Newfoundland
Hooligan is offline   Reply With Quote
Old 09-06-2014, 01:55 PM   #9
Junior Member
 
Join Date: Jan 2007
Location: Maryland
Posts: 20
Thanks everyone for the feedback and the manual.
__________________

__________________
ChazzRV is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Hard cold start mystery CAT Lover Caterpillar Engine Forum 31 01-11-2015 11:32 AM
Norcold hinge replacement part. Horizonchase RV Systems & Appliances 10 08-06-2014 06:22 PM
Sliding part of window removal TABA National RV Owner's Forum 8 07-28-2014 05:03 AM
Monaco Air Bag Part# Issue Ronbstewart Class A Motorhome Discussions 2 04-23-2014 08:10 PM
Need help with Bulb part # osgoor Winnebago Industries Owner's Forum 8 12-21-2013 06:02 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:55 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.