Troubleshooting Bulldog 3500 lb Electric Trailer Jack That Does Not Fully Retract Without Load

Question

Question:

I have an 3500 Lb Bulldog Electric Trailer jack. Electrically it works fine. As long as it under a load it works fine. But If im hooking the trailer to the truck, once the truck has taken all the weight of the trailer the jack will not continue retracting up. Same when Im unloading the trailer from the truck. I have actually pick up on the foot of the jack so it will extend down to the ground. Once it hits the ground and starts to pick up the trailer off the truck its works fine. My issue is it will not retract or extend when no load bearing weight is present. Can you advise?

asked by: Mark T

0

Expert Reply:

Usually when this occurs, it's because the jack has been over extended; there is a small lock nut in the channel on the inner tube of this jack that if it's over extended will cut into the V channel on the inside. When this happens, it damages the functioning of the jack. This was confirmed with my contact over at Horizon Global, who own Bulldog.

Because of this, you're likely going to need to replace it. A good replacement for your jack would be the Bulldog # BD500187, which is the same 3500-lbs capacity as your current jack and will work well as a replacement.

I think the best value for an A-frame tongue jack is the Stromberg Carlson # SC63VR which is rated for 4500 pounds of tongue weight. This is 1000 pounds more than other models, and even though you may not need this much capacity, you will find that the jack motor runs quick and effortlessly. This will add years to its life. This jack also has a unique clutch that prevents damage from overextending or retracting the jack foot - the most common reason for jack failure. I also like that is has a generous 23" lift, including a time-saving drop-foot. It includes LED lights for operating the hitch in the dark, and a built-in bullseye leveling bubble.

expert reply by: Erik B

0

Answer 1

We sure do! That is actually the circuit breaker of your Bulldog 3500lb Trailer Jack #BD500187. For a replacement you will need the Tekonsha 30 Amp Circuit Breaker #7012A which my contact at Bulldog confirmed. I included a video of the #BD500187…

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Answer 2

The Bulldog Powered Drive Trailer Jack part #BD500199 comes with an internal circuit breaker so there should not be a in-line fuse holder on the black wire from the jack unless someone added it during installation or before you purchased the jack…

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Answer 3

When wiring up the Bulldog A-frame trailer jack #BD500187 you can use 12 gauge wire such as #12-1-1 (sold by the foot) as long as the distance from the jack to the battery is less than 20 feet. I am assuming that the battery is located at the front…

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Answer 4

The Bulldog Powered-Drive Trailer Jack part #BD500187 has a built-in auto resetting circuit breaker. There isn't a reset procedure for this, since the breaker is thermally operated it will allow power to pass though once the temperature has…

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Answer 5

I've never heard of an actual third brake light connector on a camper shell to plug in on a truck and we don't carry any parts to do that. The light generally needs to be hardwired into the truck's brake light circuit. The issue with this…

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Answer 6

If the trailer wheels scrubbed (dragged and scrapped the ground instead of rolling) when jack knifed then it could have thrown something out of alignment or damaged something. First, inspect the suspension. Look for any elongated holes where…

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Answer 7

The length of wire desired depends on your vehicle connection and your personal preference. You want enough slack for turning, but not so much for dragging as you mentioned. A little extra slack isn't a problem and not enough could lead to stress…

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Answer 8

The part you referenced 127194TB is a double-lip seal with an inner diameter of 1.274-inches and an outer diameter of 1.983-inches. The available seal nearest to those dimensions that we offer is part #RG06-010, which is a double-lip seal sold as a…

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Answer 9

Based on my research, the Trailer Hub and Drum Assembly - 8,000-lb E-Z Lube Axles #AKHD-865-8-EZ-K will be a replacement for the 90865 Rockwell hub and drum. Both of these hub and drum assemblies are 12-1/4" diameter, have an 8,000 lb capacity,…

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Answer 10

A TCM double-lip grease seal number 127194 has an inner diameter of 1.274-inches and an outer diameter of 1.983-inches according to my research. The available grease seal nearest to those dimensions that we offer is part #RG06-010, which is a…

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Answer 11

Below is the general process for bleeding an electric over hydraulic brake actuator like #K71-650. Fill reservoir with NEW brake fluid. Never re-use brake fluid that has been salvaged or removed from another system. Remove the key from the breakaway…

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Answer 12

The hub/drum you sent in a picture of is a Lippert 8,000 lb axle hub with an 8 on 6-1/2 inch bolt pattern designed for oil-bath applications. The correct replacement then is the #8-285-10UC3-A.

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Troubleshooting Bulldog 3500 lb Electric Trailer Jack That Does Not Fully Retract Without Load

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