OHAUS MB120 Service Manual page 57

CHAPTER 3 – MAINTENANCE PROCEDURES
3.11.2.2 Replacing the Fan.
1. Open the Analyzer and remove the Main PCB (3.8)
2. Remove the housing cast iron plate (3.11.2)
3. Locate the Fan.
4. Remove the Fan cable connected to the Lid sensor board.
5. Remove and replace the Fan.
MB90 MB120 Series Service Manual
- LCD Display
- Keyboard
- Fan
- Lid sensor board
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