Scale Checkout Procedures; Visual Inspection; Center Weight Check; Off Center Weight Check - GE PANDA Service Manual

Chapter 2: Installation, Maintenance, and Checkout

Scale Checkout Procedures

2.4 Scale Checkout Procedures

2.4.1 Visual Inspection

1. Examine the scale parts for evident signs of damage. Examine the scale connector to make sure it is
tightly assembled. Check for bent pins. If any of the parts are damaged replace them.
2. Ensure there is no mechanical interference between the scale cable and the unit.
3. Ensure the scale cable is not crossing over a corner tray of the bed. Move the corner tray if necessary.
FIGURE 2-1. Cable Not Crossing a Tray (Correct)

2.4.2 Center Weight Check

1. Turn off the bed. Clear all objects from the bed, and ensure only the clear plate remains on the scale.
2. Ensure the bed is level.
3. Turn on the bed, and go to the service screen.
4. Record the SC value on the screen, and name it SC1. The SC1 value must be in the 9900 to 11000 range.
5. Place a 5 kg weight on the center of the scale on the bed. (See location A in Figure 2-3.)
6. Record the SC value on the screen, and name it SC2.
7. Subtract SC1 from SC2. The value must be 5000 +/- 10.

2.4.3 Off Center Weight Check

1. Turn off the bed. Clear all objects from the bed, and ensure only the clear plate remains on the scale.
2. Ensure the bed is level.
3. Turn on the bed, and go to the service screen.
4. Record the SC value on the screen, and name it SC3. The SC3 value must be in the 9900 to 11000 range.
5. Place a 5 kg weight on one corner of the scale on the bed. (See location B1 in Figure 2-3.)
6. Record the SC value on the screen, and name it SC4.
7. Subtract SC3 from SC4. The value must be 5000 +/- 10.
8. Place a 5 kg weight on the second corner of the scale on the bed. (See location B2 in Figure 2-3.)
9. Record the SC value on the screen, and name it SC5.
10. Subtract SC3 from SC5. The value must be 5000 +/- 10.
11. Place a 5 kg weight on the third corner of the scale on the bed. (See location B3 in Figure 2-3.)
12. Record the SC value on the screen, and name it SC6.
13. Subtract SC3 from SC6. The value must be 5000 +/- 10.
14. Place a 5 kg weight on the fourth corner of the scale on the bed. (See location B4 Figure 2-3.)
15. Record the SC value on the screen, and name it SC7.
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FIGURE 2-2. Cable Crossing a Tray (Incorrect)
Service Manual