Troubleshooting Landing Gear Not Lifting 5th Wheel
Question:
I have a 2010 Grand Junction 340RL, Unloaded weight is advertised as 12417 with a hitch weight of 2528. I dont know the weight on the landing gear. I have seen several posts about this problem. The landing gear will operate until the feet hit the ground and puts a load on the landing gear. The fuse pops or the wiring melts. I have to use hydraulic jacks to raise and lower my trailer. I have the LIppert system with the wireless remote control. The motor is the model 1-065-041012-01. The label on the motor says 3.1A. This seems to be incorrect. A 3A motor shouldnt be popping a 30A fuse. I see you recommend the 141893 motor as a replacement. I am considering replacing the entire system with a LG3 or LG4 I do not know the measurements at this time. I know the motor and possible gear replacement would be a cheaper short term fix, but would you recommend a total replacement with a 6,500 lb. system instead? They seem to build these trailers with minimal components. I want something that will do the job reliably. Thanks.
asked by: Steve B
Expert Reply:
Any powered landing gear or powered tongue jack will draw less power as it legs descend down toward the ground and much more as soon as they make contact and encounter resistance. This is a normal occurrence. In the same way, any jack - even a manual hand-crank type - requires less power (or force) when lowering the trailer than when lifting it.
The cause for your powered landing gear losing steam could be any of several possibilities. These include the trailer's battery not being rated high enough for the amperage demands from the landing gear (or from the battery being past its best days or not being fully charged before you make a trip); it could be from a corroded or loose ground connection either at the battery end or at the landing gear; it could be from the actual weight of the loaded trailer exceeding the capacity of the OEM jacks. RV makers tend to use less than the beefiest available OEM components. Based on your description of the problem my suspicion is the ground.
If you can get access to the actual jack motor terminals and can apply 12V power (from a suitably-rated battery known to be fully charged) and you find the jack lifts properly when directly powered in this way, then you know you have a power supply issue. New cables and new clean connections all around should take care of it.
Product Page this Question was Asked From
Stromberg Carlson Electric Landing Gear Set - Weld On - 34-7/8" Lift - 6,500 lbs
- Camper Jacks
- Fifth Wheel Camper
- Leveling Jacks
- Stabilizer Jacks
- Steel
- 6001 - 7000 lbs
- Electric Jack
- Landing Gear
- 35 Inch Lift
- Weld-On
- 2 Jacks
- Stromberg Carlson
more information >
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Walter L.
6/12/2020
My jack will not lift off my pickup hitch , unless I use my hand crank ,but the jack will come down on it's own