DentalEZ Core, User Manual, Page: 44 / 57

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www.DentalEZ.com 866-DTE-INFO
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DentalEZ
®
Equipment
PN: 2717-267C
Section VII User Service Information
Arm System
Symptom Possible Cause(s) Solution
Horizontal arms
drift left or right
Unit is not properly leveled Verify unit is level. Also, verify arms are properly seated. Adjust
tension or set screws as needed.
Unit head is not
level from front
to back.
Pivot is not properly adjusted Remove end cap cover and adjust bolt as necessary.
Adjustable arm
does not hold
position.
Improper adjustment With nothing on delivery head, adjust bolt at the rear of the fl ex arm so
unit stays in place.
Faulty brake switch Make sure air is running through the brake toggle when the brake is on.
No air to brake switch Ensure unit master toggle is in ON position.
Delivery Head Delivery Head
Cuspidor (Optional)
Symptom Possible Cause(s) Solution
Bowl rinse has no
water
Stop valve closed Open stop valve inside USC compartment.
Pinched or restricted 1/4" green tubing from
fl oor utility box to post-mounted console
Check for restricted or obstructions and free accordingly.
Water actuator valve in fl oor utility box is not
activated
Verify unit master switch is turned ON.
Verify air signal is present at valve on water line.
Verify regulator is open and pressure is at 40 PSI.
Bowl rinse button not working Verify air signal is present at the bowl rinse poppet valve on the
cuspidor when the bowl rinse button is depressed.
Bowl rinse actuator valve in cuspidor is not
opening
Verify air signal is present at actuator valve when button is depressed.
At actuator valve in cuspidor, check for water supply from
fl oor utility
box. Also, ensure water passes through the valve when the rinse
button is depressed.
Bowl rinse runs
continuously
Water pressure is too high Set water pressure gauge at 40 PSI.
Bowl rinse actuator valve is stuck open Check the valve in the cuspidor for air signal. If air is present, check
bowl rinse poppet valve. If air is not present, replace actuator valve.
Bowl does not
drain or drains
slowly
Restricted or pinched drain line Examine drain line and free and obstructions
Restricted or pinched vent line Examine vent line and free any obstructions.
No water fl ows
from cup to fi ll
Cup fi ll button is not working Check actuator valve in cuspidor for air signal at cup fi ll actuator valve
in post-mounted console when button is depressed.
Check for pinched airlines.
Cup fi ll actuator valve in cuspidor is not open Verify signal is present at actuator when cup fi ll button is depressed. If
air and water are present, replace valve.
Troubleshooting (Continued)