| Author |
Message |
linda alexander (Noopdoggy)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, June 28, 2005 - 9:17 am: | |
Just wondering if anyone knows the official places to jack on the gmc 4905m either for chainging a rear tire, or in our case right now to level the bus. We seem to have a air leveling valve problem right now,and that will be a later question on where to get the bus air suspensionlooked at/repair, keeping in mind we are not rich, and we are headed out from northern minnesota after the 4th.Thanks, Lin |
Jerry Liebler (Jerry_liebler)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, June 28, 2005 - 9:36 am: | |
Linda,
The 'official' places to jack a 'bufalo' are under the axles only. Once it's jacked up blocking should be placed under the bulkheads before poking one's head under the bus.
Regards
Jerry 4107 1120 |
m
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, June 28, 2005 - 10:32 am: | |
you might not want to jack directly to the axel as the axel is a tube from the air bag arms. if you place a jack under this part of the axel you have a good chance of having the jack punch a hole in the axel or at least split the axel. the axel should have diesel in it, this is so if the axel develops a crack the deisel leaks out onto the outside of the axel to show up when the meck. is doing their pretrip checks. so jack under the steel braces that hold the air bags bracket. |
Brian Brown (Blue_velvet)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, June 28, 2005 - 11:53 am: | |
My book is in the bus, but on my '06 IIRC the body can be jacked separate from the axles. When changing a bellows, for instance, you'd want the axle down and the body up... and my book lists the places to do just that.
If you're just wanting to raise a corner for leveling, I wouldn't jack an axle for fear of it rolling downhill. On my '06, the body can be jacked in the rear where the engine cradle meets the rear suspension supports and I've done this numerous times on mine. Likewise, in the front, there's some "meaty" places where the radius rods support the body.
Structurally, if the airbags are holding up the coach in just a few places, you should be able to do the same thing with a jack... if you can figure out where those places are.
I can't imagine that the Buffalos are that different than my '06, but maybe somebody will chime in with a "chapter and verse" reference from Da Book.
Also, spread out your load as much as you can with a stout square of wood or something. I've had a back corner jack sink into my asphalt street on a warm day.
HTH,
Brian
PD4106-1175 |
linda alexander (Noopdoggy)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, June 29, 2005 - 8:13 am: | |
I didn't pay much mind to the jack by axle only suggestion, I too realized that if we need to repair air,jacking the axle doesn't help, also wouldn't jack the axle to level. Maybe one of the 4905 guys on here will chime in before this thread marches on.Lin |
Michael 4905/MD
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, June 30, 2005 - 8:04 pm: | |
One means that has not been mentioned yet may also serve well in this case and other cases (certainly if it's the rear wheels you want to raise), but not necessarilly in all circustances is to run either the inner or outer of the rear duals up on a railroad tie where one end has been cut of at an angle to create a ramp to drive up. Once up there you can place an appropriately weight rated jack stand under the coach at a proper jack pad (to avoid undue damage to the coaches shell). If you want only to remove the outer rear tire place the ramp under the inner wheel on that side. Once you run it up the outer wheel will remain suspended so that you can remove the nuts and take off the outer wheel.
Michael 4905/MD |
Edwin G. Carroll
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 06, 2005 - 4:20 am: | |
For long term parking I use 4 little 1 1/2 ton mechanical bottle jacks out of a Japanese p/u. In the front place them under the casting at the front end of the radius rods. The jacks for the back go under that heavy casting at the rear bulkhead where the engine cradle attaches to the rear bulkhead. You will have to use a pad about 3-4" thick under the rear jacks so they will reach. I made mine out of 2 5" long pieces of 5" wide channel with two 5/8" verticle rods between them like this [=]. Everything is welded together then the jack is welded to the top piece of the chanel. The two rods give verticle support and also serve as a hand hold. Best to use all four jacks alike, then need only one handle. I've found the Nissan's are favorite. Expect to pay about $5 each.
HTH, Ed |