Should It Take a 14oz Cartridge To Fill Trailer Hub  

After reading On how to grease a Dexter EZ Lube Axle Wanting to put in fresh grease in our Never-R-Adjust Dexter EZ Lube Axle on our RV, I put in a fresh 14oz grease cartridge, attached the grease gun to the zerk and started rotating the tire while squeezing the handle on the manual grease gun. After about 5 minutes or more, I was still not seeing any grease exit the front or sides of the spindle and then I ran out of grease. So, I left that side and went to the other side of the trailer. I put in a new grease cartridge and started the process as in the Dexter video of greasing that side. Again, it took about 5 or more minutes while rotating the wheel continuously and again I ran out of grease. So, about 14 oz in that side as well and never saw any grease coming out from around the front of the spindle. I then called Jayco and they didn’t have any information on the axle and they referred me to my Jayco dealer. I called that dealer and told him what had taken place and immediately he said I likely blew the rear seals and the grease was likely in the brake housing! At this point, I phone Dexter tech support and held on line for about hour. While I was on hold, I saw the text option available and started a text with someone in Dexter Tech support. The text support comments: Me: I put a full tube of grease in both sides and never saw any grease coming out the front or anywhere as per your diagram and video Dexter Tech: Were they completely dry prior to adding the grease? If so, it may take more than a tube before you see grease from the pin hole on the spindles side. Me: I dont know if they were completely dry prior to starting as this is a new trailer 2022 and the first time to lube. However, I didnt see any old or new grease come out the front so I have to assume it was near empty. If the EZ lube axle is working as the videos and diagram show then the grease should exit the front spindle side and not blow out the real seal as my dealer said might have happened. That is my only concern. If the axle cavities were just mostly empty and it could hold a tube of grease, then all is fine by me. I will have the axles repacked after the summer after my first year of owning it. Dexter Tech: You need to removed the hub/drum and take it apart to inspect it. What is your opinion on needing to remove the hub to check the rear seal or just that the axles took that much grease?

asked by: Johnny A