A New Design for the Secondary Steering Relay is Now Used on Some M-Series Motor Graders {1408, 4344, 7499}
- Motor Grader:
- 12M (S/N: B9F1-UP; B9R1-UP)
- 14M (S/N: B9J1-UP)
- 16M (S/N: B9H1-UP)
- 120M (S/N: B9C1-UP; B9N1-UP; B9W1-UP; D9W1-UP)
- 140M (S/N: B9D1-UP; B9G1-UP; B9M1-UP; D9G1-UP)
- 160M (S/N: B9E1-UP; B9L1-UP; B9T1-UP; D9T1-UP)
Description of Change:
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 | |
| Illustration 1 | g02060341 |
179-0006 Magnetic Switch Gp (SECONDARY STEERING RELAY) | |
The design of the secondary steering relay that is used on some M-Series Motor Graders has been improved. The changes to the 179-0006 Magnetic Switch Gp (SECONDARY STEERING RELAY) decrease the possibility of the seepage of moisture into the switch. The changes to the 179-0006 Magnetic Switch Gp (SECONDARY STEERING RELAY) are indicated by the following changes: a date code (1) and a lid (2) that has a roll over edge. Additional improvements to the relay include an improved gasket.
Adaptable To: These changes are adaptable and effective with the machines that are listed in Table 1.
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| The New 179-0006 Magnetic Switch Gp (SECONDARY STEERING RELAY) is Now Used with the Following Serial Numbers: | ||
|---|---|---|
| Model | Adaptable Serial Numbers | Effective Serial Numbers |
| 120M | S/N:B9C1-556 | S/N:B9C557-UP |
| S/N:B9N1-272 | S/N:B9N273-UP | |
| S/N:B9W1-182 | S/N:B9W183-UP | |
| S/N:D9W1-145 | S/N:D9W146-UP | |
| 12M | S/N:B9F1-723 | S/N:B9F724-UP |
| S/N:B9R1-159 | S/N:B9R160-UP | |
| 140M | S/N:B9D1-2254 | S/N:B9D2255-UP |
| S/N:B9G1-1005 | S/N:B9G1006-UP | |
| S/N:B9M1-928 | S/N:B9M929-UP | |
| S/N:D9G1-1009 | S/N:D9G1010-UP | |
| 14M | S/N:B9J1-1150 | S/N:B9J1151-UP |
| 160M | S/N:B9E1-403 | S/N:B9E404-UP |
| S/N:B9L1-481 | S/N:B9L482-UP | |
| S/N:B9T1-157 | S/N:B9T158-UP | |
| S/N:D9T1-128 | S/N:D9T129-UP | |
| 16M | S/N:B9H1-721 | S/N:B9H722-UP |
Caterpillar Information System:
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System Switch Circuits
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System MID 027 - CID 3210 - FMI 06
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System MID 027 - CID 3210 - FMI 05
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System MID 027 - CID 3210 - FMI 03
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System MID 027 - CID 2304 - FMI 06
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System MID 027 - CID 2304 - FMI 05
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System MID 027 - CID 2304 - FMI 03
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System MID 027 - CID 2252 - FMI 14
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System MID 027 - CID 2252 - FMI 08
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System MID 027 - CID 2252 - FMI 04
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System MID 027 - CID 2252 - FMI 03
120M Series 2, 12M Series 2, 140M Series 2 and 160M Series 2 Motor Graders Power Train Electronic Control System MID 027 - CID 2252 - FMI 02
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