Chicago Dryer King Edge VAc, Instruction Manual

Page: 180 / 302

Repair King Edge Vac
7-46
Proximity Sensor Positioning
Adjustment
Proximity sensors are mounted close to the
surface of the objects to be sensed. These sensors
activate when their magnetic field is disturbed as
the surface of the target object comes into view.
Required Tools
1/2”, 11/16” wrenches, 1 mm shim
Perform only when the unit is OFF
with power disconnected.
Turn power OFF at the main disconnect
switch.
Refer to the illustrations in the OPERAT-
ING PRINCIPLES chapter, Electrical
System section, Control System subsec-
tion to locate the positions of the various
proximity sensors/encoders and to deter-
mine the best way to access each one.
Loosen the outer nut (Figure 7-59, A)
and move the sensor closer to the target
surface. Tighten the inner nut (B) to hold
the sensor in the new position.
1.
2.
3.
CAUTION
Adjust the position of
the proximity sensor very
carefully. If it is struck, the
sensor must be replaced.
Use the shim to position the encoder/sen-
sor 1 mm from its sensing surface.
If adjusting the upper spreader encoder,
slowly move the upper spreader belt to
fully rotate the sprocket, making sure none
of the teeth strike the sensor.
If necessary, close or secure any part of
the machine used to gain access to the
encoder/sensor.
Start the unit and process several pieces of
flatwork to make sure the proximity sensor
is working correctly.
4.
5.
6.
7.
Figure 7-59: The upper spreader encoder is located
in the left endframe.
A
B
TOC INDEX