Improved Transmission Intermediate Speed Sensor Is Now Used on Certain 700 Series Articulated Trucks {1408, 1439, 3030, 3073, 3167, 3175}
- Articulated Truck
- 735C (S/N: LFJ1-254; TFJ1-333)
- 740 EJECTOR (S/N: 3F71-273; 3T71-165)
- 740C EJECTOR (S/N: LFN1-278; TFN1-202)
- 745 (S/N: 3F61-517; 3T61-436)
- 745C (S/N: JE81-90122; JE91-102; LFK1-1113; TFK1-1693)
- 740 EJECTOR (S/N: 3F71-273; 3T71-165)
Description Of Change: An improved transmission intermediate speed sensor is now used on the products listed above. The improved sensor is more robust to internal transmission dynamics and has better sensor resolution. This improvement aids in reducing occurrence of 674-8 and 675-8 (Abnormal Frequency, pulse width, or Period) codes and increases reliability of the sensor.
Adaptable To:
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Parts List | ||
Item | Qty | Part |
1 | 2 | 546-5409 Speed Sensor Gp |
2 | 2 | 8T-6912 Bolts |
3 | 2 | 354-5137 Spacers |
4 | 2 | 549-7410 Sensor Harness As |
Rework Procedure for Sensor Replacement
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Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility. |
- Park the machine safely for service per the Operation and Maintenance Manual (OMM).
- Ensure the system is Locked Out and all stored energy is discharged per the Operation and Maintenance Manual (OMM).
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Illustration 1 g06266516 (A) Plate Show/hide tableIllustration 2 g06266518 (B) Speed group sensor - Locate speed group sensors (B) under plate (A) at the top of the transmission as shown in Illustration 1 and Illustration 2.
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Illustration 3 g06266522 (A) Plate
(C) Bolt
(D) Spacer - Remove plate (A) by removing two bolts (C) and two washers (D) as shown in Illustration 3.
- Ensure the area is clean and free from debris.
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Illustration 4 g06266518 (B) Speed group sensor - Remove the former speed group sensors (B).
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Illustration 5 g06266549 (1) 546-5409 Speed Sensor Gp
(2)8T-6912 Bolt
(3)354-5137 Spacer - Install two new sensors (1) using bolt (2) and washer (3) as shown in Illustration 5.
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Illustration 6 g06266803 (4) 549-7410 Sensor Harness As - Install new sensor harness assembly (4) as shown in Illustration 6.
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Illustration 7 g06266804 - Reinstall plate (A) using two bolts (2) and two spacers (3) as shown in Illustration 7.
- Secure sensor harness assembly (4) and connector to plate (A) at the provided clip points.
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