(2)
Verify that each handpiece expels drive air, coolant air, and coolant
water.
(a) Verify that drive air pressure is reflected on the drive air pressure
gauge.
(b) Adjust the air pressure, as necessary, by using the countersunk
Allen key access holes (B) which correspond to handpiece (HP) #1 through HP #3 (left
to right).
(c) Adjust the water volume, as necessary, by using the blue control
knobs that correspond to the HP numbers 1-3.
NOTE:
The foot switch toggle must be in the WATER ON position.
k. Verify that the high speed handpiece is installed in HP num ber 3 hanger position.
l. Verify that the optical light source illuminates when you select HP number 3 and
depress the foot switch.
m. Verify that you can vary the intensity of the lamp using the potentiometer on
the right side of the control head.
n. Verify that the handpieces are placed in their proper hangers. Each of the
handpieces and the scaler device has its own hanger. Each automatic hanger consists
of the following.
(1) A lock-out toggle which when turned on or off enables or disables the
corresponding handpiece.
(2) A sensor switch in the back. These switches are positioned such that
the weight of the handpiece enables the air supply thereby disabling the handpiece.
o. Verify that the scaler (ultrasonic prophylaxis) unit, in the control head,
operates properly:
(1) Remove the scaler from the HP number 4 hanger and depress the foot switch.
Water should drip out of the insert sleeve.
CAUTION:
Water must run into the ultrasonic scaler (handpiece) sleeve, if not the
sleeve can get very hot and possible burn out.
MD0371
4-11
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