Wanderlodge Owners Group  

Go Back   Wanderlodge Owners Group > Mechanic's Corner > FC (Forward Control Unique Issues)

FC (Forward Control Unique Issues) If you have a unique issue with your FC model coach and it can't be answered in one of the other forums here, then this is where you can list it.......List your FC Parts here too.

Site Search:
Reply
 
Thread Tools
  #1  
Old 01-11-2008
giderich's Avatar
giderich giderich is offline
Senior Member
 
Join Date: Jan 2008
Location: Rolla
Posts: 2,146
Default Re: Troubleshooting Bendix Fast Idle/Cruise Control on 89 35FC 3208 ATAAC

Re: Troubleshooting Bendix Fast Idle/Cruise Control on 89 35FC 3208 ATAAC


My multimeter testing indicated the potentiometer to be faulty or at
least out of tolerance. I tested with the 'pot' still on the coach
and now am traveling in South Texas and will replace pot in April
after this trip. Parts man named Spark at Seattle Clutch & Brake
fixed me up with a new Bendix pot and spring assembly P/N 101951N.

The CC works poorly but is still useful to allow me to keep my coach
speed above the set speed (cruise control helps pull the injector
pump to 'WOT' wide open throttle.

The high idle still behaves same as when I first bought the FC back
in Sept 2006, i.e. goes to 3000 rpm immediately when pressing the
resume switch on the CC panel.
__________________
Dick & Patsy Gideon
1988 WB40 (3907)
1989 FC 300HP (SOLD)
Rolla, MO 65401
Reply With Quote
  #2  
Old 01-11-2008
giderich's Avatar
giderich giderich is offline
Senior Member
 
Join Date: Jan 2008
Location: Rolla
Posts: 2,146
Default

Bill Pape, I've tried to reply to your e-mail...no success, so this is my first opportunity to try to deal with Randy's new site...Bill would please call my cell phone regarding your pm question?

Randy, John & Rob, thanks for all you do.
__________________
Dick & Patsy Gideon
1988 WB40 (3907)
1989 FC 300HP (SOLD)
Rolla, MO 65401
Reply With Quote
  #3  
Old 01-13-2008
Randy Dupree's Avatar
Randy Dupree Randy Dupree is offline
Forum owner
 
Join Date: Dec 2007
Location: Archer,Fl
Posts: 19,034
Default

thanks Dick!
as far as your CC,Mike H has been working on a couple of them.
i have never worked on a bendix CC in an FC.
i have worked on a couple in the PT series coachs,but they ddid not have the fast idle function (that i know of)
the fast idle on the PTs is part of the jake brake system.
Randy
Reply With Quote
  #4  
Old 04-29-2008
giderich's Avatar
giderich giderich is offline
Senior Member
 
Join Date: Jan 2008
Location: Rolla
Posts: 2,146
Default

I posted some photos of the Bendix Cruise Control box and CA-1 module; to view click below and it will take you to the forums Database PHOTOS ,Bendix CA-1 & Cruise Control.

BENDIX Cruise Contr..> 28-Sep-2009 17:11 >
8 Programmable Dip S..> 28-Sep-2009 17:11 73k
CA-1solenoids on Rt-..> 28-Sep-2009 17:11 70k
Close up of CA-1 and..> 28-Sep-2009 17:11 58k
Prior to removing MO..> 28-Sep-2009 17:11 80k
An Instruction sheet, BWS-904 is was included with the 'programmable' CA-1 units. Does anyone on the forum know where to locate these instructions?

Maybe somebody has a copy in their Blue Box?
__________________
Dick & Patsy Gideon
1988 WB40 (3907)
1989 FC 300HP (SOLD)
Rolla, MO 65401
Reply With Quote
  #5  
Old 04-29-2008
konehd konehd is offline
Senior Member
 
Join Date: Jan 2008
Location: Sedona
Posts: 759
Default

Try this link, its another WL group though :}
http://autos.groups.yahoo.com/group/...ise%20Control/

I think I have another pdf if that wont work for you...

The CC is on my (long) list of things to fix on my bird, after I get the new water heater in...

HTH, Joe


Quote:
Originally Posted by giderich View Post
I posted some photos of the Bendix Cruise Control box and CA-1 module; to view click below and it will take you to the old site PHOTOS ,Bendix CA-1 & Cruise Control.

http://autos.ph.groups.yahoo.com/gro...76?b=1&m=f&o=0

An Instruction sheet, BWS-904 is was included with the 'programmable' CA-1 units. Does anyone on the forum know where to locate these instructions?

Maybe somebody has a copy in their Blue Box?
__________________
Joe & Pat Garner

'93 WB40 'Alligator'
Sedona, AZ
Fun-Fun-Fun Till they take the BlueBird Away!
Reply With Quote
  #6  
Old 04-29-2008
Bill Pape's Avatar
Bill Pape Bill Pape is online now
Moderator
 
Join Date: Jan 2008
Location: Commerce
Posts: 7,586
Default

Hey Dick,

I have a trouble shooting sheet that mentions the programmable unit , but no instruction on how to set the Dip Switches.

That Red solenoid Allen Air valve was my trouble last Winter, It stopped air flow pressure to the foot throttle, so no acceleration.

There must be 10 different valves in that circuit, most for safety , to regulate, reduce, or dump throttle air pressure, when using brakes, decelerating or to disable the cruise or high idle. I have a feeling those solenoid valves on the module get sticky and hang up occasionally, these control the high idle. Or the cable could need adjustment. The high idle works with just one push of the rocker switch, holding it down will not increase idle speed. Then push again, wait and push again. If the switch is pushed too many times , this will cause the slack in the cable to tighten and increase the RPMs quickly
Bendix will no longer support this system, parts are hard to get , But all the valves are available, it is the module, air cylinder, and throttle cable that are no longer manufactured.
Try this link www.3-gproductions.com this company rebuilds the module.
__________________
Bill & Patty
1988 FC, Silver Edition
Commerce, Michigan
Reply With Quote
  #7  
Old 04-30-2008
giderich's Avatar
giderich giderich is offline
Senior Member
 
Join Date: Jan 2008
Location: Rolla
Posts: 2,146
Default

Thanks Joe & Bill: I'll try reprogramming my CC for a different Hertz rate to eliminate the surging...nothing to that CA-1 module except the circuit board.

My CA-1 appears to be the original one and has the four corners riveted rather the bolted together. Also the part # stamped into my enclosure is PN# 102704 which I located on the last pdf document which you referenced and the 102704 is the for the CA-1 module and solenoid assembly.
Anyway, thanks for the reply and I'll try resetting a the dip switches.

My CA-1 has eight switches, indicating the 'older style'. The pdf document tells about a new style having only 7 dip switches. On mine and perhaps Bill's also, Switch number 1 does not affect the operation of the unit.

This CA-1 reminds me of the early days of computers with the punch cards.
__________________
Dick & Patsy Gideon
1988 WB40 (3907)
1989 FC 300HP (SOLD)
Rolla, MO 65401
Reply With Quote
  #8  
Old 04-30-2008
Bill Pape's Avatar
Bill Pape Bill Pape is online now
Moderator
 
Join Date: Jan 2008
Location: Commerce
Posts: 7,586
Default

Dick,

You are the Pioneer on this repair,

I was unable to find anyone with knowledge or experience on this Module.

It is possible for the Dip switches to become intermittent, especially with moisture and temp changes.
Read carefully the warnings on power to the module, as the Potentiometer and module unit is tested.
I still feel it is the solenoids sticking, My high idle worked better for a time, after messing with them, But the RPM's still race (less often and randomly), so the high idle can not be trusted. Once set , it holds the RPM. Highway speed Cruise works great,

In talking to Randy & others at Maxton , a suggestion was made to try a Marine Boat cable maker for the throttle cable, this cable looks like a steering cable attached to a boat motor.

Presently no Bird projects for me, Have a long list of other (no so fun stuff) to work on, at this Ole House and the Eder In-Laws need help
Keep us posted, & Thanks for all the recent inputs.
__________________
Bill & Patty
1988 FC, Silver Edition
Commerce, Michigan
Reply With Quote
  #9  
Old 08-24-2011
Bill Pape's Avatar
Bill Pape Bill Pape is online now
Moderator
 
Join Date: Jan 2008
Location: Commerce
Posts: 7,586
Default

Dick G, myself & a few others are still enthusiastic, about keeping the obsolete Bendix
air throttle, cruise, high idle system operational.
This system in used on Late model FC's, SP's and many 6V & 8V's, with mechanical injection pumps.

As the WOG Forum reaches Globally, another Forum contacted Dick G. seeking help on this system. It was a Gillig chassis, we think maybe a Foretravel RV. Dick was able to track the problem down to the obsolete air valve control solenoids.
Unrepairable & obsolete, the Foretravel owner closed the loop & responded with a suitable replacement part.
See the attached Pics of the solenoids & the replacement Horton part.

Dick G.& Patsy are still on the road, & will see all at RATS.


http://www.wanderlodgeownersgroup.co...ng%20Valve.jpg


http://www.hortonww.com/catalog/pneu...3286&no#993286
Attached Thumbnails
Click image for larger version

Name:	Bendix Cruise Solenoids.jpg
Views:	120
Size:	328.4 KB
ID:	12037  
__________________
Bill & Patty
1988 FC, Silver Edition
Commerce, Michigan

Last edited by Bill Pape; 08-24-2011 at 08:09 PM.
Reply With Quote
  #10  
Old 08-24-2011
giderich's Avatar
giderich giderich is offline
Senior Member
 
Join Date: Jan 2008
Location: Rolla
Posts: 2,146
Default

Quote:
Originally Posted by Bill Pape View Post
Dick G, myself & a few others are still enthusiastic, about keeping the obsolete Bendix
air throttle, cruise, high idle system operational.
This system in used on Late model FC's, SP's and many 6V & 8V's, with mechanical injection pumps.

As the WOG Forum reaches Globally, another Forum contacted Dick G. seeking help on this system. It was a Gillig chassis, we think maybe a Foretravel RV. Dick was able to track the problem down to the obsolete air valve control solenoids.
Unrepairable & obsolete, the Foretravel owner closed the loop & responded with a suitable replacement part.
See the attached Pics of the solenoids & the replacement Horton part.

Dick G.& Patsy are still on the road, & will see all at RATS.


http://www.wanderlodgeownersgroup.co...ng%20Valve.jpg


http://www.hortonww.com/catalog/pneu...3286&no#993286
"Howdy, You won't believe it, but we fixed it !!!! After removing the unit we discovered there was no continuity thru the solenoid valve. My mechanic pal remembered that a lot of big trucks have a Horton Fan Clutch which has a similar solenoid. We ordered two($110.ea.)bolted it on & it worked. see attached picture.
Horton pt#993286 valve- 12V, D5-4. I also took your advice & hooked up a air tank line."
THANKS FOR THE HELP
Hugh Gipe


Bill, thanks for posting the Horton link to solenoids which will replace the solenoids on the Bendix Cruise Control.

I resized the photo which was e-mailed to me by Hugh Gipe, the owner of a Gillig chassis MH...shows how the Horton solenoids replaced the faulty Bendix assembly. We are at our Missouri home, awaiting RATS 2011. Life is good!!
Attached Thumbnails
Click image for larger version

Name:	rsz_bendix_solenoid.jpg
Views:	162
Size:	205.0 KB
ID:	12056  
__________________
Dick & Patsy Gideon
1988 WB40 (3907)
1989 FC 300HP (SOLD)
Rolla, MO 65401

Last edited by giderich; 08-24-2011 at 10:42 PM. Reason: fxd spellin
Reply With Quote
Reply

Bookmarks

Thread Tools

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

Forum Jump

Web Search:

All times are GMT -4. The time now is 09:43 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.