Mod #RB191T--How do I make the wheels work so I can vacuum behind it. My late husband did it but I don't know how

That, I believe, goes to the popular but ever elusive chevy accumulator. Its mounted behind the inside right fender, behind all the other clutter. You really have to know where and what to look for. Please search on "chevy blazer accumulator vacuum hose" and take your pick of any the gadzillion pics/videos.

Actuator on front axle not working or unplugged ,,

the wire that he hooked up is prob grounding out n blowing fuse

usually on the fuel cap it has the mixture,usually 40 to 1 is a safe bet,a little too much oil in the mix is better than less

Ford?
Most late model Fords use Pulse Vacuum engaging hubs - essentially works like a click pen to engage some gears in the hub (the little black thing in the middle of the wheel).
This will not work if you have a vacuum leak or the pump that creates the vacuum doesn't work. In my experience, the O-rings around the hub degrade and let the air leak in (not allowing the vacuum pulse to work). Try replacing the O-rings (2 on each wheel) and make sure you load up on grease too. If that doesn't work, try finding a leak in the air line - Ford was dumb and made these out of steel, so rusting is a problem.
Let me know how you fair... I had trouble with mine after I replaced the wheel bearings. I've been down that road before.

It sounds like maybe your auto lockers in your front wheel hubs are not locking. You may be able to get them to lock if while in 4x4 you jab your brake pedal several times, sometimes this will work to get them to engage but even if this works I would advise that you either invest in a good set of manual locking hubs or replace the ones you have with new auto lockers. The auto locking 4x4 hubs are great when they work but when they don't they are not serviceable. The manual lockers are allot less likely to fail on you in the future.

Yes, you just make sure it is secure to your RV correctly and then put the car in neutral and away you go. Very easy no mods or retrofitting need be done

if you look under the Jeep on the passenger side of the front axle you will see a vacume mod its kind of round shaped it should have a vacume plug on it wit ha few hoses going into it make sure its plugged in for starters these come off all the time if it looks good here simply follow the lines into the engine compartment and look for broken hose this should get you a fix most of the time, the mod could be defective but not likely.

http://geeksquad.fixya.com/ThreadView.aspx?prdid=83009&thid=695737
Changing the belt
Posted by cbgolba on Jun 22, 2008
My husband changed the belt on our vacuum, now the metal frame doesn't fit back on the bottom. Also, there is a small metal clip that we don't know where it belongs.

Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. You should check on the owner’s manual to see how it goes together or call the Simplicity customer service line listed below to see what goes where. It’s been awhile since I have worked on a simplicity vacuum. So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.
http://simplicityvacuums.com/ Customer Service 1-888-9-Simply
Thanks, Don the Vac Man
Go Ahead. Use Us.

use alcohol and dry cloth and clean all what lubricated,fax machines don`t lubricate!!!!!!!.after cleaning the fax will work properly