Hitachi HT-4139-28, Maintenance Manual

Page: 95 / 126

REV0 10.02.15
-H8-32-
8.3.21 Replacing the Detection Units
■
Replacing the Sensor (PC11 Emission) and Photo Micro Sensor(L/L Sensor) ASSY
Tools Needed: Magnetic Philips Screwdriver (No.2),
Long-nose Pliers
⑧
Remove the Top Cover, the Main Cover (L)(R), the Side Cover(L) (R), and the Back Cover. For
instructions, please refer to “8.1 Preparation”
⑨
Remove the Hopper. For instructions, please refer to “8.3.7 Replacing the Hopper”
⑩
Unscrew 2 screws on the Front Guide and remove the Front Guide.
⑪
Remove PC11L/L ASSY
⑫
Disconnect the sensor from connector
⑬
Remove the sensor;
- Remove the clips attached to the Sensor ( PC11 Sensor Side) and remove the Sensor
- Remove the clips attached to the Photo Micro Sensor ASSY (L/L Sensor) and remove the Photo
Micro Sensor ASSY.
⑭
Attach new Sensors
⑮
Take the reverse steps to attach the Sensor
When you install the PC11LL ASSY refer to the photo below.
⑯
After replacing the part, run Auto Calibration Test.(refer to Chapter6)
CAUTION
CAUTION CAUTION
CAUTION
PC11LL ASSY
Hook PC11LL ASSY
Front Guide
PC11LL ASSY
#54 Sensor
（PC11Emission
#58 Photo Micro Sensor
（L/L Sensor）
Install the PC11LL ASSY pushing it in the
direction of the arrow.