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Maintenance
BRAKE SPRING WIRE ADJUSTMENT
5-6
If the brake pin is flat on the stator surface, either the brake spring
wire is out of position or the brake spring tension is too low.
!
WARNING
Disconnect the power cord and the air supply.
1. Remove the stator pad and brake pin. Lift the pin out with a
forceps.
2. Using a flashlight, look straight down the shaft in the center of
the stator. The wire should extend across the center. If the wire is
centered, go to
BRAKE SPRING WIRE TENSION ADJUSTMENT
below. If the wire is not positioned correctly or you do not see the
wire, go on to Step 3.
3. Unscrew the two stator screws, then pry the stator off, using the
tools supplied. See Figures 5-1 and 5-2. Note that the slots on
the stator outside rim are used to provide a leverage point for the
stator tools.
4. Gently push the wire to the center, using a screwdriver blade. If
the wire is too far off center to be engaged by a tool, or if it will
not stay centered, reposition it as follows:
WARNING
Any maintenance procedure requiring
removal of a panel exposes the operator to
the possibility of electrical shock and/or
mechanical injury. Therefore, disconnect the
power cord and the air supply, and refer such
maintenance to trained and qualified service
personnel.
a. Ensure that the power cord and air supply are disconnected,
then turn the instrument on its side and remove the bottom
plate.
b. Position the wire from underneath (see Figure 5-5) so that it
extends across the center of the hole. It may be necessary to
raise the stator slightly so the wire can pass between the stator
and the electromagnet (buzzer). Check the position of the wire
by looking down the hole from the top.
c. Replace the bottom plate. Turn the instrument upright.
,
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