| Author | Message | ||
| Henry 96A3 (Hank)
Registered Member Username: Hank Post Number: 93 Registered: 11-2005 Posted From: 69.129.126.133 Rating: N/A |
Hi. I'm in the process of replacing the kingpins on my 96A3. So far so good but I cannot budge the big steering arm nuts. They're 1 7/8 castle nuts. I soaked em with penetrating stuff, heated the nuts a little (being careful not to get the shafts too hot) and reefed on them with a 3/4 impact but nothing is budging. They don't even look that crusty. The book says 350-390 ft lbs so I figured the 3/4 should handle it. Any ideas or do I need to bite the bullet and get a 1" impact? Thanks, Hank | ||
| Frank Rowe (Frankid)
Registered Member Username: Frankid Post Number: 17 Registered: 10-2006 Posted From: 63.239.248.1 Rating: N/A |
Wow, those nuts are not usually that tight or rusty. I have a 3/4 long breaqker bar and a 8ft length of 2 inch black pipe that do most of the heavy duty turning. I also have a 3/4 and 2 one inch impacts. I do like the control a long pipe offers. I'm old so I must a helper. | ||
| James Robinson (Jjrbus)
Registered Member Username: Jjrbus Post Number: 68 Registered: 12-2000 Posted From: 76.1.180.218 Rating: |
I've quit! I'm done, never again !!!!!! I no longer use torches, 20 ft lengths of 1 1/2 in sch 80 pipe, 1 inch impacts, floor jacks on breaker bars ect. If it gives me any grief, its a 4 1/2 inch angle grinder. New nuts are cheap. Just be real careful not to cut the threads on anything you want to reuse. | ||
| Phil Dumpster (Phil_dumpster)
Registered Member Username: Phil_dumpster Post Number: 21 Registered: 5-2005 Posted From: 71.112.82.24 Rating: N/A |
A quality 3/4" impact wrench, fed from a big air compressor through at least a 1/2" hose and suitable fittings will easily make that kind of torque. A cheap 3/4" impact wrench, fed from a 5 gallon air compressor through a 3/8" hose will only make a lot of noise. | ||
| James Robinson (Jjrbus)
Registered Member Username: Jjrbus Post Number: 70 Registered: 12-2000 Posted From: 76.1.180.218 Rating: N/A |
Hey Phil, You are almost right. A good setup will work very fast. However it is possible to work with less than a perfessional setup. I was useing my $99 3/4 impact with a 3/8 in hose when "sojourner" stopped me and said I was doing it wrong and doin nothing but making noise! he explained to me that if I had an air gauge at the wrench I would see that when I pulled the trigger that the pressure would go down. If I held the trigger it would drop a lot. The way to do it is, use lots of oil, oil is power. Next only hold the trigger for 4 to 5 seconds. Stop for a few seconds to let air pressure build up, pull trigger for a few seconds, stop let air build back up. Time consuming but works. Not for a perfessional shop, but ya gotta work with what you have. | ||
| Henry 96A3 (Hank)
Registered Member Username: Hank Post Number: 97 Registered: 11-2005 Posted From: 69.129.192.108 Rating: N/A |
I did eventually get them all off without cutting. I have a decent 3/4 drive w/60 gallon, 5 horse compressor and 1/2" hose. I blasted those things for many minutes and they didn't budge. What did the trick was me and a pal and an 8' breaker bar. That was a lot cheaper (a few beers) than buying a 1" impact ;-) | ||
| James Robinson (Jjrbus)
Registered Member Username: Jjrbus Post Number: 71 Registered: 12-2000 Posted From: 76.1.180.218 Rating: N/A |
My vote is still for the angle grinder!! A nut is what 50 cents. Even some specialty nut overnite UPS is $15 at the most. I have broken quality 3/4 inch braker bars, they are more than $15. I have snapped studs and spent hours getting them out. I have nuts brake loose when I am hanging on a ten ft pipe, Very lucky I did not get injured. Nobody like a quitter, but I quit. At the first sign of too much effort, out comes the angle grinder. | ||
| Don Evans (Doninwa)
Registered Member Username: Doninwa Post Number: 36 Registered: 1-2007 Posted From: 65.61.96.82 Rating: N/A |
I have been meaning to build a setup I heard about somewhere. Take a portable tank, bigger is better, and install a short really big line with big fittings. Something like 3/4" to run the impact gun. Feed the tank from your regular compressor or bus system. Tank acts as a surge tank to give the gun max volume and recharges from the compressor or bus. Should eliminate the loss of pressure from long small hoses. Use relatively short bursts and then allow the surge tank to catch up. Makes sense to me. Anyone tried this? | ||
| Henry 96A3 (Hank)
Registered Member Username: Hank Post Number: 98 Registered: 11-2005 Posted From: 69.129.126.133 Rating: N/A |
James, I think you're right. Luckily I got these to budge but I did break a decent 3/4 breaker bar in the process. Lesson learned. Hank | ||
| Austin Scott Davis (Zimtok)
Registered Member Username: Zimtok Post Number: 136 Registered: 9-2006 Posted From: 216.37.73.226 Rating: N/A |
Don, I just put together a system like you describe. I used 1/2" line with 3/8" quick disconnect from "slave tank" to the 1" impact and it didn't even budge the lug nuts on my bus. I put the hand wrench on the nut and bent the bar, so I think that they are tighter then they need to be. I guess I need to put a larger line and fittings to feed the impact. | ||
| Brian Brown (Blue_velvet)
Registered Member Username: Blue_velvet Post Number: 418 Registered: 6-2005 Posted From: 72.19.152.144 Rating: N/A |
I also put together a slave tank system for my cheapo HF 1" impact. It works great for the gun and also filling tires. I used an 11 gallon tank with a 4' 1/2" hose to the output, 1/2" fittings everywhere, and a 25' hose to the input. I can use the bus air sytem or my cheapo Sears compressor. I also put a gauge on the slave tank and never hit the "go button" until it's 110psi or more. 3-4 second burst, wait a bit, burst... repeat. Works great! Brian Brown 4108-216 w/ V730 Longmont, CO USA | ||
| john w. roan (Chessie4905)
Registered Member Username: Chessie4905 Post Number: 588 Registered: 10-2003 Posted From: 71.58.117.21 Rating: N/A |
Buy a harbor freight 1" impact wrench when they are on sale..will take care of removing any nuts, and also the wheels. Short shank would be the best so you don't have a problem getting into tight places. Use a hose setup like one of the above. BTW, hang onto the hose ends when disconnecting 1/2 inch hoses of length. They can flop and hit you up alongside the head or down where it would REALLY hurt. | ||
| James Robinson (Jjrbus)
Registered Member Username: Jjrbus Post Number: 72 Registered: 12-2000 Posted From: 76.1.180.218 Rating: N/A |
Putting together a good pnumatic setup is a great idea! Time and money well spent. A 3/4 in or 1 in impact is a good investment. The downside is if you put this much torque to work on a bolt, nut or stud that has been in place 30 years there is a very high chance you are going to snap it!!!! The chances of snapping it are in direct proportion to its accessibility. A nut and bolt out in the open, no big deal. But a hard to access stud can really ruin your day. HTH/FWIF | ||
| Arthur J Griffith (Arthurseagle)
Registered Member Username: Arthurseagle Post Number: 30 Registered: 8-2006 Posted From: 72.236.102.212 Rating: N/A |
Has anyone seen the new GAS POWERED impact wrenches that Harbor Freight is now selling. Just received mine a couple weeks ago. Used it on some difficult lugs on my bus that I have not been able to break even with a cheeter bar. It broke it loose before I could blink my eye. Looks like a heavy duty weedeater head with a heavy duty impact end with a tube - handle cage around the motor part. It's a BEAST that really works. I WILL NEVER LEAVE HOME WITHOUT IT> ARTHUR | ||
| john w. roan (Chessie4905)
Registered Member Username: Chessie4905 Post Number: 592 Registered: 10-2003 Posted From: 71.58.117.21 Rating: N/A |
Yeah...till the damn thing won't start because the fuel is old, plug fouled, etc, etc... anyone had that happen to a chain saw or a weed eater?  Probably a great idea as long as it is reliable. I've used amsoil additive in my chainsaw oil for several years now....gas has never gotten stale, even after a couple of years. Not knocking your post, just thopught I should input that though. | ||
| Arthur J Griffith (Arthurseagle)
Registered Member Username: Arthurseagle Post Number: 31 Registered: 8-2006 Posted From: 72.236.102.239 Rating: N/A |
John: I did have that concern myself. I have numerous gas powerd Tools and equipment that I use in my business and private life. In past years I had a lot of the same problems that you refered to until I also started using a product called STA-BIL. I have not had any problems since. But having said that, you can be dam sure that checking on and running that gas impact wrench will be a regular part of my maintenance on my bus. ARTHUR |
