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09-10-2013, 05:24 PM
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#1
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Senior Member
Join Date: Apr 2013
Location: Missouri City, TX
Posts: 1,309
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Freightliner Compressed air system Drain Lanyard
Looking over some of the Freightliner manuals on my fairly new to me 2005 Airstream 396 XL Diesel pusher on a Freightliner chassis i came across a section on the Compressed Air System. I had the Air Dryer serviced by Freightliner after I purchased the coach earlier this year but it looks like I should also be doing some periodic maintenance by pulling the 3 "Drain Lanyards" at least every 6 months to to drain any built moisture. Where would these "Drain Lanyards" be located. Thanks for any input and information.
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Don
2003 Forest River Cardinal Platinum 37' 5th Wheel
1976 31' Airstream
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09-10-2013, 05:33 PM
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#2
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Senior Member
National RV Owners Club Solo Rvers Club Freightliner Owners Club
Join Date: Mar 2011
Location: FT for 6 years, NW in the summer, S in winter.
Posts: 1,173
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They are attached to the compressed air tanks under the coach. Its a flexible wire pull connected to a vent valve, usually coiled up. You must have compressed air in the tanks for them to work. You will have to get down under there and look for them.
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When you get a chance to dance, or sit this one out......I hope you DANCE!
98 National Tradewinds 7370, powered by a 3126B 300HP CAT Turbo, Freightliner XC chassis
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09-10-2013, 07:52 PM
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#3
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Senior Member
Join Date: Dec 2009
Location: Out there, somewhere
Posts: 9,896
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Adonh,
Not sure about your Airstream but, on our '04 Itasca Horizon 36GD with C-7 330 HP, the lanyards are hanging from or, coming through the frame, just inside the right front tire. You may have to get down on one knee (hard for a lot of folks like us) and take a look deep inside that fenderwell. They can be obscured. And, then again, on your Airstream, they might not even be there. But, it's still a Freightliner chassis so, they "should" be there. Let us know what you find out will you?
Scott
__________________
2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '20 Honda NC750X DCT
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Heidi character, (mini Schnauzer)!
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09-11-2013, 07:33 AM
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#4
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: Mar 2007
Location: Home on the hill in Georgia
Posts: 2,742
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Also keep in mind that the drain cocks pull to the side not straight out. Mine has 2 on the passenger side and one on the driver side. All in the front wheel well.
__________________
Jerry Potter, Taz
1999 Coachman Catalina Sport
[SIGPIC][/SIGPIC]
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09-11-2013, 07:35 AM
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#5
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Senior Member
Fleetwood Owners Club Freightliner Owners Club
Join Date: Feb 2013
Posts: 1,579
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Quote:
Originally Posted by FIRE UP
Adonh,
Not sure about your Airstream but, on our '04 Itasca Horizon 36GD with C-7 330 HP, the lanyards are hanging from or, coming through the frame, just inside the right front tire. You may have to get down on one knee (hard for a lot of folks like us) and take a look deep inside that fenderwell. They can be obscured. And, then again, on your Airstream, they might not even be there. But, it's still a Freightliner chassis so, they "should" be there. Let us know what you find out will you?
Scott
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This is where mine are too (Fleetwood). They're quite easy to see--just above the tire.
__________________
2013 Fleetwood Discovery 40G, Cummins ISL,Freightliner Chassis, Allison 3000.
2017 Ford F150 Lariat toad w/
Blue Ox Aventa tow bar and M&G Braking System
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09-11-2013, 02:59 PM
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#6
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Senior Member
Join Date: Sep 2012
Location: Tasmania now, USA/Canada/Alaska in April
Posts: 2,473
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In my earlier airstream at least one of the lanyards is inside the first bay behind the front door. The other two are on the other side of the MH
__________________
Tony Lee - International Grey Nomad. Picasa Album - Travel Map
RVs. USA - Airstream Cutter; in Australia - MC8 40' DIY Coach conversion & OKA 4x4 MH; in Germany - Hobby Class C; in S America - F350 with 2500 10.6 Bigfoot camper
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09-11-2013, 03:31 PM
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#7
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Senior Member
Join Date: Apr 2013
Location: Missouri City, TX
Posts: 1,309
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Quote:
Originally Posted by Tony Lee
In my earlier airstream at least one of the lanyards is inside the first bay behind the front door. The other two are on the other side of the MH
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I only had a few minutes to look for these today and did not find them. I will try the first bay by the door. I may be looking right at them and not recognize them.
__________________
Don
2003 Forest River Cardinal Platinum 37' 5th Wheel
1976 31' Airstream
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09-11-2013, 03:47 PM
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#8
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Registered User
Fleetwood Owners Club Freightliner Owners Club
Join Date: May 2011
Location: Silicon Valley, CA
Posts: 1,857
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After you pull them
On a coach that old it's a good idea to have some spare valves. Once you pull them they will probably start leaking. Two of mine did.
I bought these : Brass Pull Drainvalve for Air Tanks 150 PSI 1 4"MPT | eBay
But first make sure your tanks are the same size.
Use the red compressor fitting sealant on the threads.
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09-11-2013, 03:56 PM
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#9
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Oct 2008
Location: Merritt, BC
Posts: 3,753
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Sometimes they can be hard to see because they blend into color of the frame. Once I located mine I put a piece of silver duct tape on each one. Very easy for these old eyes to see now.
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Bob, Sherron & Kinsey (RIP 2013-2022)
2017 Tiffin Phaeton 40QBH
2014 Jeep Cherokee Limited
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09-11-2013, 04:57 PM
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#10
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Senior Member
Entegra Owners Club
Join Date: Jun 2012
Location: Lexington, TX
Posts: 495
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Mine sticking out just in front of and above the front tires on both sides. I have two heavy duty bungee cords to hook them with and pull and hold on the tire rims while we get ready for storing or camping.
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Rich USN-Ret & Cindy, Lexington TX
2015 Entegra Coach Anthem 42RBQ
2019 Jeep Grand Cherokee
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09-11-2013, 05:26 PM
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#11
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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Use a big piece of cardboard and lay down next to RV so you can look underneath with a flashlight. Look for the 3 air tanks, (steel cylinders) and they should have a drain on the bottom with a lanyard attached. Follow lanyard to it's attachment point usually within reach from one side or other. Some are in wheel wells, in compartments, mine attach inside LP tank compartment. They could be anywhere.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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09-11-2013, 05:32 PM
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#12
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Senior Member
Join Date: Sep 2012
Location: Tasmania now, USA/Canada/Alaska in April
Posts: 2,473
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all you will see is a loop of thin steel wire (less than 1/8" diameter) possibly running inside some 3/8" black plastic tube saddled to the bodywork.
__________________
Tony Lee - International Grey Nomad. Picasa Album - Travel Map
RVs. USA - Airstream Cutter; in Australia - MC8 40' DIY Coach conversion & OKA 4x4 MH; in Germany - Hobby Class C; in S America - F350 with 2500 10.6 Bigfoot camper
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09-26-2013, 01:53 PM
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#13
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Senior Member
Join Date: Apr 2013
Location: Missouri City, TX
Posts: 1,309
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Quote:
Originally Posted by Tony Lee
all you will see is a loop of thin steel wire (less than 1/8" diameter) possibly running inside some 3/8" black plastic tube saddled to the bodywork.
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Found them in the front wheel wells. Pulled both for a second and just air as it is supposed to be so I ma fine. I will check monthly or so as suggested. Thnaks
__________________
Don
2003 Forest River Cardinal Platinum 37' 5th Wheel
1976 31' Airstream
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09-27-2013, 03:18 PM
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#14
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Senior Member
Winnebago Owners Club
Join Date: Jun 2013
Location: Full-timer/volunteer w/SOWERS
Posts: 3,958
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I was just at Freightliner in Gaffney. The tech told me that folks use a bent rod to reach the Drain Lanyards. Anyone with an awning rod has just the tool. I need to make or buy one.
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Rick & Melissa Young, 2011 Itasca Meridian 40U, Frtliner XCL, Cummins ISL 380HP/DEF, Allison 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox, EEZ TPMS, TruCenter steering control
Servants On Wheels Ever Ready. Best job we ever paid to do . (full time volunteers)
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