Happijac 4100 / 4500 Camper Jacks Without End Cap Kit - Any Concerns?

Flysar

Observer
I bought 4 used Happijac camper jacks, (2) 4100 (2) 4500, and they were missing the end caps. They are in good condition & move smoothly up/down without a load.

Has anyone used either of these model jacks without the cap assembly which includes; plastic cap, spring, plastic coupler, and washer.

None of these items seem robust enough to assist in structural support in lifting or lowering the camper. Best I can tell from reading, the spring and coupler is more of a friction stop to prevent the leg from vibrating down while traveling. I will remove the jacks once the camper is loaded so that will not be an issue.

Happijac will only say that is how they are equipped and didn't recommend using them without.
 

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