Is Impact Wrench Proper Tool?
I've recently ordered (delivery in late February) a freightliner
sportchassis medium duty truck (22.5X8.25 10-bolt wheels with Michelin XRV 255/80R22.5 14-ply tires) to tow a trailer while I'm retired and fulltiming in the RV. The truck has air brakes and air ride and includes a quick disconnect fitting with hose for a tire inflation kit. With this set-up I thought it might be a good idea to pruchase an air impact wrench to periodically check/tighten the lug nuts on the truck and trailer. However, after the research I've conducted (this is a VERY confusing topic for a newbee) I'm not so sure this is as good an idea as I thought. I do not anticipate using the impact wrench for any other task. Other maintenance I do I can handle with my ratchet, breaker bar, and/or cheater pipe. Is an impact wrench the tool I should be considering? If so, would an Ingersoll Rand 1/2" or 3/4" wrench (model #?)be correct? Or, is a good torque wrench a better choice? Any assistance will be greatly appreciated. |
On 30 Dec 2004 06:46:56 -0800, "Ron" >
wrote: >Is an impact wrench the tool I should be considering? >If so, would an Ingersoll Rand 1/2" or 3/4" wrench (model #?)be >correct? >Or, is a good torque wrench a better choice? >Any assistance will be greatly appreciated. An impact wrench is fine for taking the lugnuts off. To put them on use a lugwrench and then a torque wrench. Tighten lugs in opposite pairs. Using an impact wrench to put lugnuts on is characteristic of mechanics in a hurry at tire shops and brake&muffler joints who really don't give a damn. If you care enough to check lugnuts, use a torque wrench. Whether you should put grease or anti-sieze on the lugs is a subject of vociferous controversy in automotive mewsgroups. I always do. |
John Ings > wrote in
: > On 30 Dec 2004 06:46:56 -0800, "Ron" > > wrote: > >>Is an impact wrench the tool I should be considering? >>If so, would an Ingersoll Rand 1/2" or 3/4" wrench (model #?)be >>correct? >>Or, is a good torque wrench a better choice? >>Any assistance will be greatly appreciated. > > An impact wrench is fine for taking the lugnuts off. > To put them on use a lugwrench and then a torque wrench. > Tighten lugs in opposite pairs. > > Using an impact wrench to put lugnuts on is characteristic of > mechanics in a hurry at tire shops and brake&muffler joints who really > don't give a damn. If you care enough to check lugnuts, use a torque > wrench. > > Whether you should put grease or anti-sieze on the lugs is a subject > of vociferous controversy in automotive mewsgroups. I always do. > > > > your impact will not have enough power for you truck lugs. the proper torque on most alumun wheel 22.5 tire wheels is about 450 ftlbs we use a torque wrench to finish torque them all. KB -- ThunderSnake #9 Warn once, shoot twice 460 in the pkup, 460 on the stand for another pkup and one in the shed for a fun project to yet be decided on |
On 30 Dec 2004 06:46:56 -0800, "Ron" >
wrote: >I've recently ordered (delivery in late February) a freightliner >sportchassis medium duty truck (22.5X8.25 10-bolt wheels with Michelin >XRV 255/80R22.5 14-ply tires) to tow a trailer while I'm retired and >fulltiming in the RV. The truck has air brakes and air ride and >includes a quick disconnect fitting with hose for a tire inflation kit. >With this set-up I thought it might be a good idea to pruchase an air >impact wrench to periodically check/tighten the lug nuts on the truck >and trailer. However, after the research I've conducted (this is a >VERY confusing topic for a newbee) I'm not so sure this is as good an >idea as I thought. I do not anticipate using the impact wrench for any >other task. Other maintenance I do I can handle with my ratchet, >breaker bar, and/or cheater pipe. > >Is an impact wrench the tool I should be considering? >If so, would an Ingersoll Rand 1/2" or 3/4" wrench (model #?)be >correct? >Or, is a good torque wrench a better choice? >Any assistance will be greatly appreciated. For many reasons, a torque wrench. Torque specs should be in the owners manual. "When a legislature undertakes to proscribe the exercise of a citizen's constitutional rights it acts lawlessly and the citizen can take matters into his own hands and proceed on the basis that such a law is no law at all." - Justice William O. Douglas |
On 31 Dec 2004 02:25:10 GMT, oEmails (Dave Baker)
wrote: >>Subject: Is Impact Wrench Proper Tool? >>From: "Ron" >>Date: 30/12/04 14:46 GMT Standard Time >>Message-id: .com> >> >>I've recently ordered (delivery in late February) a freightliner >>sportchassis medium duty truck (22.5X8.25 10-bolt wheels with Michelin >>XRV 255/80R22.5 14-ply tires) to tow a trailer while I'm retired and >>fulltiming in the RV. The truck has air brakes and air ride and >>includes a quick disconnect fitting with hose for a tire inflation kit. >>With this set-up I thought it might be a good idea to pruchase an air >>impact wrench to periodically check/tighten the lug nuts on the truck >>and trailer. However, after the research I've conducted (this is a >>VERY confusing topic for a newbee) I'm not so sure this is as good an >>idea as I thought. I do not anticipate using the impact wrench for any >>other task. Other maintenance I do I can handle with my ratchet, >>breaker bar, and/or cheater pipe. >> >>Is an impact wrench the tool I should be considering? > >No. It's probably the least suitable tool you'll ever need for that job. > > >>If so, would an Ingersoll Rand 1/2" or 3/4" wrench (model #?)be >>correct? >>Or, is a good torque wrench a better choice? >>Any assistance will be greatly appreciated. > >A torque wrench would be the right tool if you're particularly pedantic about >wheel nut torque settings but most people manage perfectly well doing them up >by feel. In fact that isn't true. Most people manage perfectly well by never >checking them in the first place. After all, when was the last time you saw a >car sailing down the road on three wheels being overtaken by the fourth? Stemmens Freeway, Dallas Texas, truck lost entire wheel/tire which hit cement divider and went airborne to about 40 feet doing about 60 mph. Truck tire/wheel is big and weighs a lot. Came down on hood of truck just to left of me that didn't see it coming *(I did see it coming but this only took a few seconds and had no time but to get out of the way). Check those g-damn wheel lug nuts, cause if that truck tire hit 1/2 second later than it did, it would have gone through the guys window and squashed him like a bug. There ya go. BTDT. Lg |
Dave Baker wrote:
>>Subject: Is Impact Wrench Proper Tool? >>From: "Ron" >>Date: 30/12/04 14:46 GMT Standard Time >>Message-id: .com> >> >>I've recently ordered (delivery in late February) a freightliner >>sportchassis medium duty truck (22.5X8.25 10-bolt wheels with Michelin >>XRV 255/80R22.5 14-ply tires) to tow a trailer while I'm retired and >>fulltiming in the RV. The truck has air brakes and air ride and >>includes a quick disconnect fitting with hose for a tire inflation kit. >>With this set-up I thought it might be a good idea to pruchase an air >>impact wrench to periodically check/tighten the lug nuts on the truck >>and trailer. However, after the research I've conducted (this is a >>VERY confusing topic for a newbee) I'm not so sure this is as good an >>idea as I thought. I do not anticipate using the impact wrench for any >>other task. Other maintenance I do I can handle with my ratchet, >>breaker bar, and/or cheater pipe. >> >>Is an impact wrench the tool I should be considering? > > > No. It's probably the least suitable tool you'll ever need for that job. > > > >>If so, would an Ingersoll Rand 1/2" or 3/4" wrench (model #?)be >>correct? >>Or, is a good torque wrench a better choice? >>Any assistance will be greatly appreciated. > > > A torque wrench would be the right tool if you're particularly pedantic about > wheel nut torque settings but most people manage perfectly well doing them up > by feel. In fact that isn't true. Most people manage perfectly well by never > checking them in the first place. After all, when was the last time you saw a > car sailing down the road on three wheels being overtaken by the fourth? I wouldn't discourage him from regularly checking the torque though. Most auto mfgrs. recommend one retorque of all auto wheels at some interval after remounting them; I believe heavier trucks have regular torque check intervals. This leads me to believe that proper torque is more important on truck wheels than car wheels. nate -- replace "fly" with "com" to reply. http://home.comcast.net/~njnagel |
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Alex Rodriguez wrote:
> In article .com>, > says... > >> >>I've recently ordered (delivery in late February) a freightliner >>sportchassis medium duty truck (22.5X8.25 10-bolt wheels with Michelin >>XRV 255/80R22.5 14-ply tires) to tow a trailer while I'm retired and >>fulltiming in the RV. The truck has air brakes and air ride and >>includes a quick disconnect fitting with hose for a tire inflation kit. >>With this set-up I thought it might be a good idea to pruchase an air >>impact wrench to periodically check/tighten the lug nuts on the truck >>and trailer. However, after the research I've conducted (this is a >>VERY confusing topic for a newbee) I'm not so sure this is as good an >>idea as I thought. I do not anticipate using the impact wrench for any >>other task. Other maintenance I do I can handle with my ratchet, >>breaker bar, and/or cheater pipe. >> >>Is an impact wrench the tool I should be considering? >>If so, would an Ingersoll Rand 1/2" or 3/4" wrench (model #?)be >>correct? >>Or, is a good torque wrench a better choice? > If you're just going to CHECK the torque, a torque wrench is the correct tool and an impact wrench is dead wrong. However, if I had a rig like that with on-board air always available, I'd darn sure have a good impact wrench just for CHANGING tires! I hate heaving on a lug wrench and use my impact for all my tire changing needs in my garage. Also, smaller impact wrenches, butterfly impact wrenches, air drills, and air grinders are a thousand times more useful than I ever would have imagined them to be before I got a good compressor years ago. |
Loose nuts can be caused by overtightening. The stud has a
certain amount of elasticity, like most steel parts, and the proper torque takes advantage of this to keep the nut snug. Overtightening stretches the stud beyond its elastic limit and strains it, making it non-elastic and if anything at all, like temperature changes or additional stress from heavy loads or cornering is applied to it, it will not snap back from that and the nut will now be loose. I spent nine years selling wheels, studs and nuts, and other related hardware. We sold a lot of this stuff to shops that didn't use torque wrenches, and their customers had more "loose" nuts and departed wheels. Rust stains can be a good indicator, but many wheels are aluminum now and it won't show so well. Black stains are more likely there. Dan |
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