 Safety
First
Happijac's Acme Screw Jack offers the industry's first redundant
safety check system in an acme screw jack. By providing an additional
fail-safe safety nut, Happijac's Acme Screw Jack protects you and
your camper against mishap in the event of failure.The unique concave
(cupped) footpad design reduces movement and provides greater stability
than large, convex footpads.
Optimum Performance
Through precision manufacturing and the utilization of a high quality,
polished steel screw coupled with a space-age, self-lubricating,
friction-reducing nut, Happijac's Acme Screw Jack is so efficient
that its performance compares with many competitor's ball screw
jacks on the market today. Providing over 34" of lift, the
Happijac screw jack can quickly and easily raise and lower camper
with efficiency and complete control.
Strong and Appealing
Each Happijac Camper Jack features 2" square tubing which
not only matches the contours and lines of your camper, but also
provides significantly more strength than round tubing. The Happijac
Acme Screw Jack can lift an astounding 1700 lbs. while the Happijac
ball screw jack can lift 1900 lbs. per jack. Each Happijac Camper
Jack is powder coated on both the inner and outer tubes to protect
against rust and improve appearance. The unique "Happijac look"
ensures quality, strength, and safety while enhancing the look of
your camper.
Easy Installation
Each Happijac Camper Jack uses the same universal Z-bracket mounting
system and hardware. Providing superior strength and security, the
Z-bracket mounting system is easily installed and/or retrofitted
onto most any camper. Best of all, once installed you never have
to change brackets again, regardless of the type of Happijac Camper
Jack you place on your camper. For dual wheel pickup trucks, the
optional swing out bracket is easily installed and provides the
additional clearance needed for trouble free loading and unloading.
Electric Upgrade Ability
Perhaps the best feature of the Happijac family of camper jacks
is the ability to achieve the ease and comfort of electric jacks
at any time without the hassle and expense of "opting up".
The Acme (4150), ball-screw (4500), and ball-screw with quick release
leg (4600) jacks can easily be upgraded into a remote controlled
electric jack system with the purchase and simple installation of
the Happijac motor drive assembly kit (600500) and wiring kit (600530).
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