725C, 725C2, 730C, 730C Ejector, 730C2, 730C2 EJ, 735C, 740 Ejector, 740C Ejector, 745 and 745C Articulated Trucks Cat® Production Measurement Application Caterpillar

Known Weight / (Loaded) Machine Calibration

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Illustration 1	g03866219
Select "Trans/Chassis ECM" > "OK".

1. Select "Trans/Chassis ECM" > "OK".
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   Illustration 2	g03866240
   "Configurable Parameters" screen

2. Navigate to the "Configurable Parameters" screen.
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   Illustration 3	g03866251
   "Configurable Parameters" check screen

3. Check the following:

   1. The body liner and tailgate installation status is set to match the machine configuration.

   2. The Machine Modification Weight matches the weight of any additional equipment added to the dump body.
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   Illustration 4	g06247283
   Dump body marks

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   Illustration 5	g03866400
   "Payload Control System Calibration Weigh" screen

4. Enter the known weight value into the "Payload Control System Calibration Weigh" box. The known weight can be either:

   1. The weight of the payload calculated using a weighbridge value.

      Weigh the empty machine and record the weight.

      Weigh the machine when fully loaded and record the weight.

      Calculate: Known Weight = loaded machine weight - empty machine weight.

   2. The weight of a test weight greater than 5500 kg (12125 lb).

      To position the test weight, add a mark to the outside of the dump body, at the dimension shown in Illustration 4. Align the center of the test weight to this mark to within +- 200mm (8 inches). Ensure that test weight is central left to right in the dump body.

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   Illustration 6	g03866433
   "Service" > "Calibrations" screen

5. Select "Service" > "Calibrations".
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   Illustration 7	g03866439
   "Payload System Calibrations" > "Start" screen

6. Select "Payload System Calibrations" > "Start".
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   Illustration 8	g03866441
   Follow on-screen instructions. Select "OK".

7. Follow on-screen instructions. Select "OK".
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   Illustration 9	g03866442
   "Payload System Loaded Machine Weight Calibration" > "Begin" screen

8. Select "Payload System Loaded Machine Weight Calibration" > "Begin".
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   Illustration 10	g06333610
   Calibration weight matches what was entered into the "Payload Control System Calibration Weigh" box screen.

9. Check that the calibration weight matches what was entered into the "Payload Control System Calibration Weigh" box.
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   Illustration 11	g06333615
   Conditions are met, select "Next".

10. When set up conditions are met, select "Next".
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    Illustration 12	g03866939
    "Calibration Successful" message appears. Select "Finish".

11. Once calibration has successfully completed, the "Calibration Successful" message appears. Select "Finish".
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    Illustration 13	g03866940
    "ECM Summary" screen

12. Return to "ECM Summary".

Payload Light Test

Note: Not essential but useful to check correct operation of Payload Lights.

Illustration 14	g03892736

1. Select Diagnostics then Diagnostic Tests.
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   Illustration 15	g03892759

2. Select Chassis/Override Parameters.
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   Illustration 16	g03892761

3. Select "Start" then select "Yes" on pop-up screen.
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   Illustration 17	g03892768

4. Select Green Payload Lamp Override. Select Change.

   Note: The same procedure can be followed for the Red Payload Lamp functionality.

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   Illustration 18	g03892771

5. Select "Flashing" or "On" then select "OK".
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   Illustration 19	g03892774

6. Select "Yes".
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   Illustration 20	g06247181

7. Check the Payload Lights and ensure that Green Lamp is either flashing or permanently on depending upon previous Payload Lamp Override selection.

   Payload Green Lamp activated.

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   Illustration 21	g03892795

8. Select "Off" then "OK".
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   Illustration 22	g03892802

9. Select “Yes” to return the lamp to the default off position.
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   Illustration 23	g03892803

10. Repeat previous steps for Red Payload Lamp Override.