ELECTRIC JACK LEVERLER OPERATION AND TROUBLESHOOTING
Certain 2007 and 2008 D's were equipped with electric (rather than hycraulic levelling jacks. Please read the following before downloading either of the manuals below.
The first document to use for regular operation and troubleshooting is “Electric Leveling – Operation and troubleshooting”.
The second document can only be used if the jacks have gone into a failure mode (explained in the second document) and what one needs to do to resolve the issue.
It is advisable if you are referring to the second document that you have a second person assisting so you do not accidently over extend or retract the jack. (also explained in the document).
Next, read the tips below, as your issue may not be resolved by following the documentation listed in the two attached documents.
Some additional troubleshooting tips:
- The system will go into an error mode if you lose power to the jacks while they are being extended or retracted.
- Each jack has two “nickel sized” magnets embedded in the shaft of each jack. These magnets are used to tell the system when each jack has been fully extended or retracted. Many times the jack will go into error mode because the shaft of the jack is so dirty, that the sensor that controls the up and down operation of the jack assembly (which you cannot get to ) is unable to determine the position of the jack. When this happens the jack will go into an error mode because of the excessive current draw on the jack motor. Resolution is to FIRST clean the shaft of the problem jack (using a degreaser) so that the sensor can read the position of the shaft via the magnet. (as long as you are under the coach, it would be a good idea to do all of the other jacks as well.) As the jack shaft is square, one needs to look on each side to find the magnet. Most if not all of the time you are unable to see the fully extended jack magnet as it is covered by the jack shaft housing. Unless the jack is fully retracted and will not go down, it is easy to see the fully retracted magnet when the jack is fully extended.
- Each jack has a brake assembly attached to each jack. Multiple wires go to two different connectors, one for extension, and one for retraction. Sometimes one or more of these connectors becomes corroded due to the position of the brake assembly and its exposure to the elements under the coach. Disconnect each connector and using a contact cleaner ensure each is making a good connection when reconnected.
- The brake assembly is mounted vertically on the jack shaft assembly. The connectors listed in #3 above are located on the top of the assembly. On the bottom of the brake assembly should be a rubber boot approximately 3 inches in diameter, which covers the entire bottom of the brake assembly. The brake release for the jack is located and released via an arm located on the bottom and covered by the rubber boot. The rubber boot is held in place by a metal ring that is wrapped around the entire rubber boot and is screwed tight to prevent any moisture from getting into the area covered by the rubber boot. If you have no rubber boot on the assembly, you have major problems. If the metal band is not tight and completely enclosing the rubber boot, you have major problems. If the rubber boot itself appears old/cracked/dried, you are on your way to major problems. The reason why moisture in the boot is so bad is because on the bottom of the brake assembly are two sets of contacts. The rubber boot protects them from moisture. If the boot is not present or allows water to enter the boot, the contacts will corrode and fail, thereby causing one or more jacks to fail. Fleetwood a number of years ago determined that even if the metal ring is tightened as much as possible, water can still get into the boot. To resolve the issue, Fleetwood put out a Service Bulletin a number of years ago to eliminate the problem. The solution described in the Service Bulletin was to cut a small hole into the bottom of each boot to eliminate the possibility of water collecting in the boot. You need to determine if a hole has been cut into the bottom of the boot, and if not, you need to make one. If water comes out, this is more than likely may be your issue and you will need to take every boot off to determine if the contacts are corroded.
None of the tips listed here are documented in either of the attached documents. Most of your issues with the jacks can be temporarily or possibly permanently resolved by referring to the documents attached. If you have repeated failures, refer to tips #2, #3, and especially #4.
LINK to manuals:
Electric Jack Operation
Electric Jack Reset