What Grease Should Be Used With The Trailer Axle w/ Electric Brakes # e43SR?

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Question:

I just purchased and installed Item # e43SR. Trailer Axle w/ Electric Brakes - Easy Grease - 5 on 4-1/2 Bolt Pattern - 89inch Long - 3,500 lbs - Question 1. Since the bearings came installed in the hubs and pre-greased, I simply slide the hub on the axle and tightened the hub down. I Did NOT put any grease on the bare axle since the bearings came pre-greased. A Should I have greased the bare axle before installing the Hub? What is the issue if i didnt? B should i also use a zurk grease gun and Grease then after install? The bearings came pre-greased so What needs grease and what doesnt on this new install? Question 2: Do I need to manually adjust these trailer brakes by tightening the adjuster wheel on the backside of the brake housing? I have read both yes and no on your site. ...Do I do the manual adjustment ?? or... do u go to a parking lot and perform multiple stops and that adjusts them? its not clear to me what process is needed.

asked by: David K

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Expert Reply:

For the Trailer Axle w/ Electric Brakes # e43SR you do not need to grease the spindle before applying the hub. It is important to fill the hub with Grease # L11390 to ensure the bearings always have grease. You need to use a lithium complex grease but it will not matter if they are different colors as long as they have the same base formula.

The brakes do require manual adjustment for initial setting and also as the brakes wear. The adjusters are behind the plastic covers in the backing plate on the drum. A Brake Adjustment Spoon # W80630 will make adjusting the brakes easier. I have linked our help article near the bottom of the page which covers the adjustment process as well as how to bed in the brakes.

expert reply by: Bud M

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Answer 1

With your 3500lb axles we have many brake assembly options, however they all fit on the brake flange that is 4 hole square. The drums you pictured are agricultural and we don't have anything that is a fit for a replacement. My recommendation is…

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Answer 2

If your trailer has 7 wires running all the way back to the brakes, then yes, you can tap into the existing wiring. Each of your new brakes will have two wires for the brake magnet. One wire is for 12 volt power to the brake magnets and the other…

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Answer 3

I attached a chart that has all of the recommended lug nut torque specs for trailer wheels. Based on your studs being 1/2 inch, your wheels being 15 inches in diameter, and your lug nuts being coned you would want to torque your lug nuts to 90-120 ft…

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Answer 4

My contact at Dexter Axle tells me that when installing a brake assembly to the backing plate of a 3500 lb axle, the bolts should be tightened in a criss-cross pattern to between 45-70 foot lbs.

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Answer 5

While the standard axle diameter for a 3,500 lb trailer axle is 2-3/8 inches it's not unheard of to see a 3 inch diameter 3,500 lb axle. All of our 3,500 lb axles like the part #7359765 are 2-3/8 inches.

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Answer 6

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 7

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 8

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6-1/2 inch whereas the 225/75-15 fits widths that are 5 inch to 6 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 9

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 10

From my research on the Harbor Freight 4x8 folding trailer uses 4.80-12 tires on a 12 inch wheel for the 1195 lb capacity trailer and a 5.30-12 for the 1720 lbs capacity trailer. It is a good idea to check your existing tires to see which size they…

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Answer 11

The three most common lug stud sizes for a trailer are 1/2"-20, 9/16"-18, and 5/8"-18. In order to make sure you get the correct lug nuts you need to measure the lug studs on the trailer now as we have no way to look this up for…

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Answer 12

The 12 inch tires that we carry are rated for 65 miles per hour. Any faster than that for extended periods and the excessive heat build up will cause tire failure. To get a tire with a higher speed rating you would have to go up in size. That also…

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What Grease Should Be Used With The Trailer Axle w/ Electric Brakes # e43SR?

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