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The mounting screws of the pole clamp may come loose, allowing the pole clamp assembly to detach from the rear pump housing, if they are not maintained on at least an annual basis.
If the arm of the wheelchair is overloaded, the joystick mounting brackett and/or arm pivot may fail due to variability in the plastic used by the supplier to make the components. This failure may cause the user or a caregiver to fall if they are leaning on the arm, and result in injury.
Under recovery of diluted samples by as much as 20%.