5-9
Maintenance
one-quarter turn further counterclockwise. The rotor will be
wobbling and may be turning in either direction. Leave the
LEVITATION AIR screw at this setting; this is the correct
adjustment.
6. Turn the pressure regulator knob counterclockwise and open the
door. Remove the rotor.
At the end of the 2-minute period, the run light will go out and a
clicking sound can be heard when the brake pin is released.
TIME-DELAY PERIOD ADJUSTMENT
The delay period between the time the timer reaches zero and the run
light goes out may be lengthened or shortened, using the time-delay
knob on the instrument bottom (see Figure 5-7). A setting of about
120 seconds (or 3.5 on older instruments) is optimal.
!
WARNING
Disconnect the power cord and the air supply.
Figure 5-7. Location of Time-Delay Knob
Time Delay Knob
