Leaking Grease

[pwhittle]

Originally Posted by CountryB

I bought this "electric" impact gun. might come in handy on the road too. It is capable of 700 ft-lbs of torgue (1200 ft-lbs breakaway torque).
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I also have this breaker bar https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 in case the battery on the Dewalt goes dead or is not able to break nuts loose for some reason.

CountryB,

Have you used that DeWalt Impact wrench to remove/install wheels?

I don’t know that I could get them loose with that breaker bar. Or tighten them to 450 ft lbs. I struggled with my 4’ 3/4”drive torque wrench before I bought a torque stick to use with my impact wrench.

Paul

[CountryB]

Originally Posted by pwhittle

CountryB,

Have you used that DeWalt Impact wrench to remove/install wheels?

I don’t know that I could get them loose with that breaker bar. Or tighten them to 450 ft lbs. I struggled with my 4’ 3/4”drive torque wrench before I bought a torque stick to use with my impact wrench.

Paul

I have not removed any wheels on my coach yet.

I have used the Dewalt 3/4 drive impact gun to remove/install the spring U-bolts on my 4x4 pickup and with my U-joint puller/press when I removed the driveshaft on the coach. It definitely has power.

When I get around to pulling wheels on my coach - I'll report back how well the Dewalt works. I suppose I could remove one of two nuts now just to report back on the power. - I'll do this...

The breaker bar (38" handle) I have should get the job done if the Dewalt impact gun can't. I can always slip a piece of pipe over the handle if I need more leverage. I also have a 3/4" drive torque wrench for the installation.

[BigLar368]

Vito...I pretty much have the same impact. Sure it's made in China but it does the job. I also bought a cheap air jack, jack stands, and larger air hose all from Amazon. I did that not long after buying our RV cause I knew eventually I would have to take the tire off.


I have an 80 gallon Quincy but only small taps. I took out a large pipe plug in the side of the tank and drilled-tapped it for a half inch hose. Works pretty good but uses a ton of air. After about the 5th lug nut coming off the compressor is already on.

[vito.a]

Received my 1" impact wrench. At almost 40# this thing is heavy!
I'm not sure how to plumb it. It came with a 1/2" tapered hose barb fitting.
Should I just use a piece of 1/2" ID hose and another hose barb, or a quick disconnect air hose fitting?

[CountryB]

Originally Posted by vito.a

Received my 1" impact wrench. At almost 40# this thing is heavy!
I'm not sure how to plumb it. It came with a 1/2" tapered hose barb fitting.
Should I just use a piece of 1/2" ID hose and another hose barb, or a quick disconnect air hose fitting?

I would use the air hose quick disconnect fittings. I assume you are using "automotive shop air hose". If so it should have NPT threads on both ends.

[BigLar368]

Originally Posted by CountryB

I would use the air hose quick disconnect fittings. I assume you are using "automotive shop air hose". If so it should have NPT threads on both ends.

This^^^^^

[boneyard51]

Originally Posted by twinboat

My research say that a typical 1" air impact gun needs between 10 and 40 CFM and 90 PSI.

A 85 lb, pavement breaker, jack hammer needs 85 CFM and I know that they use a LOT of air.

Most home owner compressors will not deliver the needed CFM at 90 psi, but with a big enough tank and a short 3/4 " hose, it will knock off the lugs if you give the compressor time to refill the tank.

A Harbor Freight, 2.5 HP, 21 gallon compressor is rated at 4.7 CFM at 90 PSI. With that, you may be able to get 1 or 2 lugs loose or tight and the wait for it to recover.

In a tire shop, that wouldn't work. They would want a much higher CFM.

I’ll give you guys a little trick to use your big impact guns on your small compressor. I used it on my 1 inch gun in my shop where there is a large compressor. What is important is the pressure and the immediate delivery of air. I took a flexible air hose and put it directly on my impact about 8 ft long. I took the other end and put it on a fitting I welded it to a small air tank. No quick disconnects that restrict flow. Then I welded a fitting to the air tank to connect it to my compressor. For the first few hits the 1 inch impact doesn’t know if it’s connected to a 1/4 horse compressor or a hundred horse power dieselscrew compressor. That’s when you need the power. You may have to let your compressor “ catch up”, but you can get full power out of a small compressor. With this set up.

Bones

[vito.a]

I was able to remove every other lug nut (5 total) using a Chinese 1" drive impact wrench, a small DeWalt (2.6CFM at 90) pancake air compressor, 3/8" air hose, and 1/4" air hose connectors. I almost ordered a larger air hose and connector set but decided to try what I already had. It will remove about 3 lug nuts and then you have to pause for a minute to let the compressor catch up.
I'm using this air compressor:
https://www.ebay.com/itm/DEWALT-0-9-...cake.TRS0.TSS0

[vito.a]

What gear oil are you guys using to refill the differential?

My owners manual says to use synthetic gear oil meeting MIL-L-2105D. This has been superseded by MIL-PRF-2105E.

Picture of hub with the axle out and picture of the axle.

[powderman]

A torque multiplier available at HF will make life easier. With that, you can use your 1/2" torque wrench to get the 450 ft lb or whatever you need to tighten nuts.

[vito.a]

I used a torque stick to tighten the lug nuts. Made it easy.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1


Now I just need to find the MIL-L-2105D gear oil to top it off?