An Improved Pressure Sensor is Used on Wheel Skidders Equipped with Secondary Steering {1408, 1439, 4304}
- Wheel Skidder:
- 525C (S/N: 5251-UP)
- 535C (S/N: 5351-UP)
- 545C (S/N: 5451-UP)
Description of Change: An improved Pressure Sensor is used on Wheel Skidders equipped with secondary steering.
Adaptable To: The improved Pressure Sensor offers improved dry packaging to protect assembled circuit boards.
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Required Parts     | |||
---|---|---|---|
Item     | Qty     | Part Number     | Description     |
1     | 1     | 221-3417     | Pressure Sensor Gp     |
- 525C (S/N: 5251-1855)
- 535C (S/N: 5351-705)
- 545C (S/N: 5451-1188)
- 525C (S/N: 5251856-UP)
- 535C (S/N: 535706-UP)
- 545C (S/N: 5451189-UP)
Process Changes Implemented at the Supplier
- Utilize dry packaging to protect assembled circuit boards from moisture.
- Limit circuit board exposure time to atmospheric humidity during sensor assembly.
- Modify the pattern for potting material application over the ASIC.
- Revert to the adhesive used prior to the delamination issue.
- Remove internal potting that sometimes contacts internal O-ring. Improved part identified with yellow dot sticker.
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