Camper Jack Overview
Explanation of basic internal workings design and features

Model Comparison
Identify which jack is right for various camper weights

Installation Guides
Illustrated installation instruction downloads for all happijac camper jacks

Camper Jack Maintenance Guide
A video guide on how to preserve your Jack's longevity and performance

Rules for loading and unloading a camper
The dos and don't of safely loading and off-loading any camper

Camper Jack FAQ
The Happijac knowledge base, FAQ or post a question online.

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The Golden Rules of Loading and Unloading Your Camper

Always remember that when loading and unloading your camper, you are moving a dynamic load weighing thousands of pounds. No one jack, especially when swing out brackets are used, will support the shifting weight of the camper exclusively if a disproportionate load is shifted onto it. The key is to always keep the load evenly distributed. The following are "the golden rules" that everyone should know when loading or unloading any truck camper.
ALWAYS

 
NEVER

Always keep the front of the camper slightly higher than the back (about 4 to 6 inches).

Never Allow the front of the camper to become lower than the back. (weight from the overhang can cause the camper to tip, shifting its weight exclusively to the front jacks.

Always lower the camper to the ground or support weight on fixed platforms when not on the truck.

Never leave the camper in an elevated position supported by jacks.

Always ensure that the camper is clear of the truck bed when backing or pulling out.

Never back into or turn into jacks.

Always keep the camper level side to side (special attention should be paid to rate of travel on each jack as this rate will vary with the difference in load on each corner).
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Never allow one side or corner of the camper to become more than 4" higher or lower than the other side. (this can cause the weight of the camper to shift exclusively to the jacks on the lower side).
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Always operate camper jacks within specified range of extension as defined by the manufacturer. (Extended distance can be readily observed at all times by the imprinted ruler on the leg of all Happijac camper jacks).

* Never extend a jack beyond its maximum height. (as indicated by the red stop line on all Happijac camper jacks).