Washer 62000165 - Caterpillar

Motor Grader:
120H (S/N: 2AN1-UP; 3GR1-UP; 4MK1-UP; 5FM1-UP; 6NM1-UP; 6TM1-UP; 9FN1-UP; 9YR1-UP)
12H (S/N: 2GS1-UP; 2LR1-UP; 2WR1-UP; 4ER1-UP; 4XM1-UP; 5ZM1-UP; 8MN1-UP)
135H (S/N: 3YK1-UP; 7MM1-UP; 8WN1-UP)
140H (S/N: 2ZK1-UP; 3AS1-UP; 3FR1-UP; 5HM1-UP; 8JM1-UP; 8KM1-UP; 9TN1-UP; 9ZN1-UP)
143H (S/N: 1AL1-UP)
14H (S/N: 7WJ1-UP)
160H (S/N: 2FM1-UP; 2HS1-UP; 3GM1-UP; 3HR1-UP; 6WM1-UP; 9EJ1-UP; 9JM1-UP)
163H (S/N: 5AK1-UP)
16H (S/N: 3JR1-UP; 6ZJ1-UP)
The information may answer some of the questions about the following topics about the final drive.
Allowable wear limits for copper
High copper levels in samples
Noise in the differentialThere are several potential sources for copper in the power train oil and noise in the power train. Before a repair is considered, all of the sources must be considered when a sample is evaluated.Copper can come from the following areas:
The actual wear of copper or bronze components in the differential or transmission
The formulation of the oil or the additive package
The chemical reaction between the oil and the copper or bronze components in the systemIn the differential, the source of the copper can be the sleeve bearings of the spider, two thrust washers and the spacers behind each pinion of the spider. In the transmission, there is one sleeve bearing on each side of the number 4, 5, and 6 clutches. There are two sleeve bearings on the number 7 and 8 clutches. There are four sleeve bearings in the transmission pump and there are copper tubes in the cooler.An increase in copper in the oil sample or copper in the filters does not necessarily indicate a pending problem. Copper is a soft metal which is not abrasive and copper does not cause wear of other components. A potential problem is suspected if copper and another element increase simultaneously.High copper readings can be present in oil from sources that may not cause a failure. Caterpillar does NOT recommend the repair of the power train solely on the copper reading of the Scheduled Oil Sampling.Copper readings in conjunction with other test results can indicate real system problems, especially when the readings show a trend over several samples from the same compartment.Note: It is important to verify that the oil has been changed at the recommended interval. Normal wear of copper based bearings and washers will continue to raise the level of copper. Additives for the oil may break down if the oil is not changed for an extended period. This may cause accelerated wear.Noise in the differential can be caused by different factors. The noise must be thoroughly investigated before a repair is considered.Verify that the noise is present when the differential is in the locked state or the unlocked state. When the differential is locked, the pinion gears on the spider are not rotating and the pinion gears are locked by the action of the differential lock. When the differential is unlocked, the pinion gears on the spider may rotate. This allows easier steering and wheel spin on one side of the machine when there is a loss of traction.Verify that a noise is present when the differential is in the LOCKED state. The