XPR-9 Series Two-Post Lifts 42 P/N 5900371 — Rev. D2 — May 2023
About Arm Restraint Gears
Arm Restraint Gears get installed on each Lift Arm.
The Arm Restraint Gears are intended to hold the Lift Arms in place laterally (once they mesh with the
Gear Stops) as the Lift Arm rises from the ground up to where the Lift Pads contact the manufacturer’s
recommended Lifting Points.
When the Lift is fully lowered, the Arm Restraint Gears are not meshed with the Gear Stops on the Lift
Head. This allows movement for the Lift Arms to position them correctly under the Vehicle. When the
Lift begins to rise, the Arm Restraint Gears mesh with the Gear Stops.
Important: Arm Restraint Gears do not keep the Lift Arms from moving once the weight of the
Vehicle is on the Lift Arms. Arm Restraint Gears are designed to maintain the position of
unloaded Lift Arms up to 150 pounds of horizontal (side to side) force. Put another
way, Arm Restraint Gears keep the Lift Arms from moving laterally from just above the
ground, when they mesh with the Gear Stops, until the Lift Pads start holding the
weight of the Vehicle being raised.
XPR-9 Series Arm Restraint Gears have an R imprinted on one side and an L imprinted on the other
side. Before installing an Arm Restraint Gear, determine whether it is going to be a ‘left’ arm or a ‘right’
arm (described in Installing Lift Arms) and install the Arm Restraint Gear accordingly.
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