Happijac lubrication
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Forum Discussion
Pete_k wrote:
I do mine a little different but its worked for over 6 years. Taking a picture from the first post.
And just taking the motor off the top. In the above picture you can see there's room to use a White grease spray can and straw placing the straw next to these small openings around that inside SQ you can shoot this White Grease down onto the worm gear.
Sure beats tearing your jacks in pieces. And doing it this way It takes me less then an hour to do all 4 jacks with the camper sitting on the truck.
Plus less room for me to mess something up or leave a step out that could cause a camper to fall.
Pete
Sorry, but this will not work. Once you actually remove the guts of a Happijac, you will understand how there is no way you can get any white lithium grease onto the worm gear from the top section of the jack housing. I have taken all four of my jacks apart several times over the years and completely cleaned and relubed each worm gear.
See how the worm gear is installed in relationship to the upper section? The square bearing and the coupler both completely block any chances of just squirting lithium grease onto the worm drive from above. You could however take your jacks apart one by one and cleanly drill a small hole into each one where you KNOW that you could put the lithium grease spray straw through for later applications. The hole could be tapped for a seal screw, or just a nice redneck cover made of camo duct tape. :B
