CHAPTER 3 - MAINTENANCE PROCEDURES
Explorer
®
Series Service Manual
35
Ohaus Corporation www.ohaus.com
3.4 REPLACING THE LOAD CELL (12001, 24001 and 35001)
The Load Cell may need to be replaced because of balance instability, or because the balance does
not calibrate or repeat, or because it is physically broken or displays an error code.
Note: Explorer
®
Load Cells are not serviceable in the field due the special tools and test conditions
required to ensure that it is working properly. No spare parts are available for the Load Cell Module.
Disassembly:
1. Open the balance
–
see Section 3.2. Verify that there is no mechanical interference, pinched
wire or bad solder connection that may be causing the load cell to appear defective.
2. Turn the base on its side and remove the 3 screws that hold the Load Cell to the Base. Do
not turn the Base completely over as the weight of the Base will rest on the Load-cell possibly
causing damage.
Note: Make sure to hold on to the load cell with one hand when unscrewing the last screw to
prevent it from falling out.
3. Turn the base back on its feet making sure that the load cell do not fall out.
4.
Remove all cables connecting the load cell to the PCB and lift the load cell out from the housing
.
