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08-12-2012, 06:26 AM
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#29
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Senior Member
Join Date: Feb 2011
Location: Snowbird - Waterford Mi and Citrus Springs Fl.
Posts: 3,609
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Quote:
Originally Posted by Mr_D
No, the parking brakes only act on the rear wheels/tires. That's why you should never lift the rear tires off the ground, it CAN roll.
Our rams (four of them) are each rated for 12,000#'s, our rig weighs 13,600 front and just over 19,000 rear so we're way under the rating.
FYI: I have contacted Newmar, Spartan, Reyco Granning and HWH, ALL said there was no problem suspending the front axle off the ground for extended use.
I've taken the time to check it out with the various manufacturers, have you?
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On the bold, geez, that's news to me as well? The air pressure is removed to apply the brake, right? That's different front vs. rear?
__________________
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake
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08-12-2012, 01:27 PM
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#30
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Senior Member
Join Date: Jun 2011
Location: FL
Posts: 11,452
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Air Brake Manual201122682414 This is excellent. Too large to attach as a pdf.
Quote:
Originally Posted by ahicks
On the bold, geez, that's news to me as well? The air pressure is removed to apply the brake, right? That's different front vs. rear?
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Parking brakes are activated via springs on the rear axel activator pods after air is removed from one section during parking brake mode. During normal brake operation air is applied to press the brake shoes. The attachments are very informitive.
__________________
Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008
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08-12-2012, 06:15 PM
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#31
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Senior Member
Join Date: Feb 2011
Location: Snowbird - Waterford Mi and Citrus Springs Fl.
Posts: 3,609
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Many thanks YC1!!
__________________
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake
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08-12-2012, 07:18 PM
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#32
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Registered User
Monaco Owners Club
Join Date: May 2009
Posts: 3,198
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duplicate post, sorry.
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08-12-2012, 07:45 PM
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#33
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Junior Member
Join Date: Mar 2012
Posts: 17
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 very good advice by all, we all can learn and pass it on to new rvers, go rving
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08-12-2012, 08:00 PM
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#34
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: Sep 2008
Location: Shadow Hills,CA 91040
Posts: 3,038
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Can I over extend my front jack?
WARNING: If it lasts over four hours seek immediate medical help !!!
__________________
NOTE; I am not responsible for typos, poor grammer or misspelled word !
04 Itasca, Meridian 34H, 330 Cat/2003 CR V Toad
1933 Ford 3 Window,as seen in Bye Bye Birdie
Pvt. E1 Retired, Shadow Hills,Ca.
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08-13-2012, 05:56 PM
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#35
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"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 24,125
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Rick.....two things.....next time you have it up like that, close all the doors and "photo shop" the jack out. It would make a cool picture.
My neighbor does pretty much the same thing. If you still need to do it, you can buy a couple of cheap bottle jacks from Harbor Freight and slide them under the axle. I bought a (I think, 10 ton) jack from Harbor Freight that uses both air or hydraulics (pump handle) to operate. You could use your coach air to pump the bottle jacks up.
__________________
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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08-13-2012, 06:02 PM
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#36
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Registered User
Join Date: Mar 2011
Posts: 1,943
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If the back tires are off the ground from being up on jacks, I don't think it's going to roll. Might skid but roll? I've had all six back tires off the ground and it ain't moving. It has 28,000 lbs down force on them.
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