OHAUS EB SERIES, Service Manual

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CHAPTER 3 REPAIR PROCEDURES
EB Series Scales Service Manual 3-1 Ohaus Corporation www.ohaus.com
3 REPAIR PROCEDURES
This section describes how to change individual components of the EB Series Scales. When
doing this, please refer to the drawings and parts lists in Section 5.
Important: After replacing components, a Performance Test must always be carried out.
(See Chapter 4.)
3.1 REMOVING TOP HOUSING
To gain access to the components in the scale, perform the following procedures.
1. Remove power from the scale by disconnecting the AC adapter. Make sure the
scale is off.
2. Carefully lift and remove the Pan and Pan Support from the scale.
3. Turn the scale over and remove the screws, which hold the Top Housing.
Refer to Figure 3-1.
Figure 3-1. Retaining Screws on Bottom of Housing.
CAUTION
Use care in the next step as the Display PCB wiring is attached to the Main PCB.
4. Place the scale in the upright position and carefully lift the Top Housing from the
Base and tilt forward. Reach under the Top Housing from the front and carefully
disconnect the flexible cable from connector on the Display PC board.
5. Set the Top Housing aside.
Retaining
Screw
Retaining
Screw
Retaining
Screws
Retaining
Screw