PERFORM PREVENTIVE MAINTENANCE CHECKS AND SERVICES ON
THE DENTAL CHAIR
The dental chair, model JSA-R, is a solid state automatic unit designed for the
ideal positioning of the patient easily. It can be programmed for any operating
procedure. It can also be operated manually by placing the AUTO/MANUAL mode
toggle switch into the manual position. The chair features three separate motors; one
for lift, one for back adjustment, and one for seat adjustment. Control switches are
readily accessible on the chair or pedestal base.
DENTAL CHAIR COMPONENTS
a. Dental Chair Component Overview. Refer to figure 1-1. The dental chair
consists of the following components.
Floor plate assembly.
(2) Chassis assembly that houses the base motor assembly, the foot switch,
and the brake pedal.
Chair mount assembly.
(6) Cradle assembly that houses the chair back motor, the chair seat motor,
and the AUTO/MANUAL mode toggle switch.
Chair seat assembly.
Chair back assembly that houses the control buttons.