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05-07-2018, 12:18 PM
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#1
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Senior Member
Join Date: Nov 2010
Location: Ocala Fl.
Posts: 410
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parking brake does not activate
2001 sunsport cummings with Allison tranny.Went to park on slight incline and had no park brakes,had to block it with 4x4.Brake release switch sounds like it is working but it will roll down the incline.Just finished 200 mile drive and brakes work and holds full pressue.Any ideas on what to check? thanks
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05-07-2018, 12:48 PM
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#2
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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With the wheels chocked, I'd get eyes on the parking brake mechanism as someone applies and releases the parking brake. It could be a frozen mechanism or just brake shoes that need adjustment.
__________________
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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05-07-2018, 12:55 PM
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#3
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Registered User
Monaco Owners Club
Join Date: Mar 2018
Location: Blairsville, GA & WPB, FL
Posts: 3,993
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Sounds like your parking brake is on the driveshaft, not dual chamber spring parking brakes on the rear brake drums. Let us know which you have.
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05-07-2018, 12:57 PM
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#4
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Senior Member
Join Date: Oct 2002
Location: Madison, MS
Posts: 10,527
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Quote:
Originally Posted by greezykid
2001 sunsport cummings with Allison tranny.Went to park on slight incline and had no park brakes,had to block it with 4x4.Brake release switch sounds like it is working but it will roll down the incline.Just finished 200 mile drive and brakes work and holds full pressue.Any ideas on what to check? thanks
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What chassis do you have and does it have air brakes?
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05-07-2018, 01:12 PM
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#5
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Senior Member
Join Date: Nov 2010
Location: Ocala Fl.
Posts: 410
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2001 gulfsteam sunsport diesel with air over hydraulic brakes on spartan frame.
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05-07-2018, 01:21 PM
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#6
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Senior Member
Join Date: Jul 2014
Posts: 35,424
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The drive shaft mounted parking brake needs an adjustment.
Watch as someone actavates it. The rod going into the spring chamber should only move 1 to 2 inches. Don't know if you adjust the rod or it has a star wheel inside that you get to thru a oval shaped slot. The slot may have a rubber plug in it.
If it has an adjustment slot, with the brake off, turn the star wheel until tight and then back off 5 or 6 teeth. Then apply it and check the rod movement.
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05-07-2018, 03:03 PM
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#7
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Registered User
Monaco Owners Club
Join Date: Mar 2018
Location: Blairsville, GA & WPB, FL
Posts: 3,993
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X2 on the ^^^^ and it's about the same as adjusting the brakes on a trailer. Block the wheels, but you knew that.
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05-08-2018, 03:44 PM
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#8
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Senior Member
Join Date: Nov 2010
Location: Ocala Fl.
Posts: 410
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I have a air cylinder mounted next to enclosed housing which I'm sure is driveshaft brake. looks like only adjustment is on air cylinder threaded yoke.I'll let you know after I adjust yoke.
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05-08-2018, 04:07 PM
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#9
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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If adjusting the length of the rod on the air chamber doesn't give braking action, you might have to disassemble the enclosed housing and replace the brake shoes. (or pad if it's a disc brake)
__________________
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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05-09-2018, 05:51 AM
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#10
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Senior Member
Join Date: Nov 2010
Location: Ocala Fl.
Posts: 410
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Quote:
Originally Posted by BFlinn181
If adjusting the length of the rod on the air chamber doesn't give braking action, you might have to disassemble the enclosed housing and replace the brake shoes. (or pad if it's a disc brake)
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Does your unit have this set up for adjusting?
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05-09-2018, 08:34 AM
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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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Quote:
Originally Posted by greezykid
Does your unit have this set up for adjusting?
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Yes, a slight tightening of the rod made my parking brake hold on a slope when it had slipped before.
__________________
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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05-09-2018, 09:43 AM
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#12
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Senior Member
Join Date: Nov 2010
Location: Ocala Fl.
Posts: 410
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Quote:
Originally Posted by BFlinn181
Yes, a slight tightening of the rod made my parking brake hold on a slope when it had slipped before.
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Thanks,spartan was no help!
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05-09-2018, 09:47 AM
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#13
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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Quote:
Originally Posted by BFlinn181
Yes, a slight tightening of the rod made my parking brake hold on a slope when it had slipped before.
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Oops, rereading my post I meant to say "lengthening of the rod" not tightening.
__________________
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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05-15-2018, 10:06 AM
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#14
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Senior Member
Join Date: Nov 2010
Location: Ocala Fl.
Posts: 410
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!st answer was right,tighten.
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