New Software for the Turbocharger Protection Strategy on C7.1 Machine Engines {1052, 1901, 1920}
- Wheel Feller Buncher:
- 2570C (S/N: F1B1-202,204-204,206-216; W571-101)
- Motor Grader:
- 120MSeries 2 (S/N: M9C1-340; M9H1-288,396-396; R9N1-132; M9W1-201; R9W1-104,106-129)
- Wheel Loader:
- 950K (S/N: R4A1-1388; J5M1-471,473-474,479-479; FER1-331)
- 2670C (S/N: B3E1-171,1470-1470; W671-102)
- 563C (S/N: JCB1-324; W631-132)
- 573C (S/N: RJT1-1,252-296; W731-112)
- 120M2 (S/N: M921-102)
- 962K (S/N: T6A1-422; FLL1-234; X4T1-482)
Description of Change: New engine software has been introduced to offer enhanced protection to the turbocharger immediately following engine start in very cold conditions.
The new software holds the engine at a safe speed until the engine systems have stabilized.
The time the engine is held at a safe speed will vary depending on many factors, including ambient temperature, and engine oil grade.
Refer to tables 1, 2 and 3 in order to view the old and the new software part numbers.
Adaptable To:
Show/hide table
| Wheel Feller Buncher | ||
| Old Part Numbers | New Part Numbers | |
| (S/N: F1B) | 4221050 | 4445944 |
| (S/N: W57) | 4221050 | 4445944 |
| (S/N: B3E) | 4221043 | 4454973 |
| (S/N: W67) | 4221043 | 4454973 |
| (S/N: JCB) | 4221050 | 4445944 |
| (S/N: W63) | 4221050 | 4445944 |
| (S/N: RJT) | 4221043 | 4454973 |
| (S/N: W73) | 4221043 | 4454973 |
Show/hide table
| Motor Graders | ||
| Old Part Numbers | New Part Numbers | |
| (S/N: M9C) | 3918908 | 4333371 |
| (S/N: M9H) | 3918908 | 4333371 |
| (S/N: M9N) | 3918908 | 4333371 |
| (S/N: M9W) | 3918908 | 4333371 |
| (S/N: R9N) | 3918908 | 4333371 |
| (S/N: R9W) | 3918908 | 4333371 |
| (S/N: M92) | 3918908 | 4333371 |
| (S/N: M9R) | 3918908 | 4333371 |
| (S/N: R9R) | 3918908 | 4333371 |
Show/hide table
| Medium Wheel Loaders | ||
| Old Part Numbers | New Part Numbers | |
| (S/N: FER) | 3947077 | 4387276 |
| (S/N: J5M) | 3947077 | 4387276 |
| (S/N: LRN) | 3947077 | 4387276 |
| (S/N: R4A) | 3947077 | 4387276 |
| (S/N: DPT) | 3947077 | 4387276 |
| (S/N: FLL) | 3947078 | 4387277 |
| (S/N: T6A) | 3947078 | 4387277 |
| (S/N: X4T) | 3947078 | 4387277 |
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