Otis Singleton
Manually lowering electric stabilizer jacks can be done in several ways. One method involves disconnecting the jack connections from the control board and individually jumping the jacks to a 12V battery to raise and lower them. Another way is to use a manual override handle, but this requires disconnecting one of the wire leads from the motor to prevent backfeeding. For Lippert electric stabilizer jacks, it is recommended to use the Lippert Manual Hand Crank # LC119226 to operate the manual override. Additionally, some people suggest connecting the trailer to a tow vehicle and using jumper cables to connect the tow vehicle battery to the trailer battery, allowing the tow vehicle to serve as a power source.
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What You'll Learn
Using a manual hand crank
To manually lower electric stabilizer jacks using a manual hand crank, you will need to identify the manual override spot on the head of the stabilizer. This will depend on the make and model of your stabilizer jack. For example, if you have a Lippert Components High-Speed Power Stabilizer Jack, the manual override spot is an opening on the main tube, opposite the motor. Once you have located the manual override spot, you can insert the manual hand crank.
If your electric stabilizer jack has a built-in motor, you may need to remove it to access the manual override spot. For example, the Ultra-Fab Power Twin II Electric Stabilizer with Dual Motors requires you to remove the four bolts holding the motor in place. However, be careful not to damage the wires when removing the motor.
Once you have accessed the manual override spot, insert the manual hand crank into the opening. The specific type of hand crank you need will depend on the make and model of your stabilizer jack. For instance, the Lippert Components High-Speed Power Stabilizer Jack requires the Lippert Manual Hand Crank # LC119226.
With the hand crank in place, you can now manually lower the stabilizer jack. Turn the hand crank in the appropriate direction to lower the jack. Be sure to follow any specific instructions provided by the manufacturer of your stabilizer jack for safe and proper use.
In addition to using a manual hand crank, some stabilizer jacks may also provide alternative methods for manual operation. For example, you may be able to use a 3/8" drive ratchet and extension at the top of the jack motor or a 3/8" drive ratchet, ratchet extension, and 5/16" socket at the bottom of the jack motor to manually raise or lower the jack.
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Disconnecting the jack connections from the control board
To disconnect the jack connections from the control board, you will need to locate the control board and identify the jack connections. The control board is typically located near the stabilizer jacks, and the jack connections will be clearly labelled or colour-coded.
Once you have located the control board and identified the jack connections, you will need to disconnect the wires or cables that are attached to the control board. These wires or cables will be connected to the stabilizer jacks, and they may be secured with screws, clips, or other types of connectors. Using the appropriate tools, carefully remove the wires or cables from the control board, taking note of their orientation and labelling, if possible, for future reference.
It is important to exercise caution and follow safety procedures when working with electrical systems. Ensure that the power source to the control board is disconnected before beginning any work, and verify that there is no live current running through the wires or cables before proceeding.
After disconnecting the wires or cables from the control board, you may need to secure or cap the ends to prevent any accidental contact or damage. This will also ensure that the wires or cables do not inadvertently connect to any other components.
By disconnecting the jack connections from the control board, you can manually lower the electric stabilizer jacks using alternative methods, such as a manual hand crank or by jumping the jacks to a 12V battery, as suggested by other RV owners.
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Replacing the harness under warranty
To replace the harness under warranty, follow these steps:
Firstly, it is important to understand the context of the situation. In this case, the user is dealing with Lippert electric stabilizer jacks, which are used to stabilize campers or trailers. The user has encountered an issue with their electric stabilizer jacks, specifically mentioning a "short in the wire harness." This indicates an electrical malfunction that requires troubleshooting and potential replacement of parts under warranty.
Now, let's outline the steps to address the issue:
- Disconnect the Power Source: Before performing any work on the electric stabilizer jacks, it is crucial to disconnect the power source. This could involve removing the battery or cutting off the power supply to the system. This step is essential for safety reasons and to prevent further damage to the system.
- Contact Customer Support: Reach out to the customer support team of the stabilizer jack manufacturer. In this case, the user mentions Lippert as the manufacturer. Explain the issue you are facing and inquire about the warranty coverage for the harness replacement. They may provide guidance or specific instructions for your situation.
- Obtain Necessary Parts: If the issue is covered under warranty, the manufacturer or authorized dealer should provide you with the necessary parts for replacement. This may include a new wiring harness, switches, or any other relevant components required to resolve the issue.
- Follow Installation Instructions: Refer to the installation manual or instructions provided by the manufacturer for the correct procedure to replace the harness. This may involve disconnecting and reconnecting wires, screws, or other components. It is important to follow the manufacturer's guidelines to ensure a proper and safe installation.
- Test the Stabilizer Jacks: Once the harness has been replaced, test the electric stabilizer jacks to ensure they are functioning correctly. This includes raising and lowering the jacks manually or through the control panel to verify that the issue has been resolved.
- Document the Process: Throughout the process, it is helpful to document the steps taken, including taking notes, photographs, or videos. This documentation can be useful for future reference, troubleshooting, or warranty purposes.
By following these steps, you can effectively address the issue of replacing the harness under warranty for your electric stabilizer jacks. Remember to prioritize safety and follow the specific guidelines provided by the manufacturer for your particular model of stabilizer jacks.
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Using a 3/8 drive ratchet and extension
To manually lower electric stabilizer jacks, you can use a 3/8 drive ratchet and extension. This method requires no socket. To do this, follow these steps:
Firstly, locate the jack motor. You will need to identify the top of the jack motor, as this is where you will be working. The jack motor should be at the opposite end of the main tube from the opening.
Next, take your 3/8 drive ratchet and ratchet extension. Place the ratchet at the top of the jack motor. You may need to adjust the ratchet's position to find the correct spot for it to engage with the jack mechanism. Once you have found the correct spot, begin to turn the ratchet in a slow and controlled manner.
Turning the ratchet will manually operate the jack. Turn the ratchet in the direction required to lower the jack. It is important to turn it slowly and carefully to avoid any potential damage to the mechanism or injury to yourself. Continue turning the ratchet until the jack has been lowered to the desired height.
When you are satisfied with the position of the jack, you can stop turning the ratchet. Ensure that the jack is securely locked into position before moving on to the next jack, if required.
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Connecting the tow vehicle battery to the trailer battery
To manually lower electric stabilizer jacks, you may need to disconnect the jack connections from the control board and individually jump the jacks to a 12V battery to raise and lower them. You can also try unplugging the leveler and manually raising or lowering it with a socket.
Now, to connect the tow vehicle battery to the trailer battery, follow these steps:
Firstly, locate the 7-pin junction box, which is usually found between the fridge and the batteries. Inside this box, you will find wires that can be connected to the tow vehicle's charging system. Specifically, look for the black and white wires, which are both 10 AWG.
The black wire, also known as the auxiliary power pin, is already connected to the battery in the emergency break-away box for the electric brake system. It is important to never disable or disconnect this wire while the trailer is being towed.
Next, you will need to determine the appropriate AUX feed from the tow vehicle to charge the trailer battery. This is done by assessing the wire from the 7-pin connector, which will be fused but not connected to the terminal.
It is recommended to use a DC-DC charger between the trailer and the tow vehicle to protect both systems from potential damage and ensure optimal battery charging. Unlike standard chargers, a DC-DC charger can manage varying input voltages, providing a stable and appropriate charge.
Finally, remember to only connect the positive wire to the positive side of the battery when needed to prevent accidental activation of the jack and potential battery drainage.
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Frequently asked questions
You can remove the jack connections from the control board and jump the jacks individually to a 12V battery to lower them.
You can use the Lippert Manual Hand Crank # LC119226 to operate the manual override.
You can disconnect the power by removing one of the wire leads from the motor. Alternatively, you can pull the fuse.
You can connect the trailer to a tow vehicle and use the tow vehicle as a power source.
You will need a 3/8" drive ratchet and extension (no socket) or a 3/8" drive ratchet, ratchet extension, and 5/16" socket. You may also need jumper cables.
