ENGINE AR 3315875 - Caterpillar

Illustration 2 g00670357
The 175-2624 Position Load Markers are available via MSO through the machine order system. For information on proper placement of the marker on the body, contact “Decatur CMT Product Support. Product Support” will need the information that is listed here: the serial number of the truck, the part number of the truck body, the sequence number of the truck body and information on modifications that have been made to the body (such as side board or tail extensions).
(1) Center of Load Marker Expected Result:The operator is loading the truck correctly. Refer to Illustration 2.Results:
YES - The operator of the loading tool is positioning the load correctly. Proceed to test step 6.
NO - The operator of the loading tool is not positioning the load correctly in the body.Repair: Provide the operator of the loading tool with training/supervision in order to ensure that the load will be placed properly.STOPTest Step 6. CHECK FOR SERVICE WORK THAT MAY HAVE AN AFFECT ON THE MEASUREMENT OF THE PAYLOADCheck the maintenance records of the suspect truck for any work that was performed on the suspension CYLINDERS or payload related VIMS components. This includes replacement of the body raise switch, the truck body or any other payload related component.Expected Result:No work that is related to the payload system was performed on the machine.Results:
YES - No work that is related to the payload system was performed on the machine. Proceed to test step 7.
NO - Work was performed on the truck that is related to the payload system. If the payload system was not calibrated after the components were replaced, proceed to test step 8. Otherwise, analyze the possible effects that the service work could have had on payload accuracy.Test Step 7. CHECK FOR DIAGNOSTIC EVENTSVerify that no “active diagnostic events” or “intermittent diagnostic events” are present for the suspension cylinder pressure sensors or other components of the payload system.Expected Result:No active diagnostic events are present for the suspension cylinder pressure sensors and there are no diagnostic events listed in the event list for the suspension cylinder pressure sensors.Results:
YES - No active diagnostic events are present for the suspension cylinder pressure sensors and there are no diagnostic events listed in the event list for the suspension cylinder pressure sensors. Proceed to test step 8.
NO - There are active diagnostic events present for the suspension cylinder pressure sensors or there are diagnostic events shown in the event list for the suspension cylinder pressure sensors.Repair: Perform the Troubleshooting, "Suspension Cylinder Pressure Sensor" procedure that is located in this manual.STOPTest Step 8. CALIBRATE THE PAYLOAD SYSTEM.
Ensure that the truck body is empty. Carryback weight in the truck body can affect the payload measurements.
Operate the empty truck to a minimum ground speed of four mph on hard level ground.
Move the transmission gear selector to the neutral position and allow the truck to coast to a stop. Do not use the service brakes or the retarder.
Manually calibrate the payload system by entering the service program code of “729225”