Before/After
(Limited distribution)
| PRODUCT SUPPORT PROGRAM FOR REPLACING IEC CIRCUIT BREAKERS WITH UL CIRCUIT BREAKERS ON CERTAIN C9, C15, C18, C27, C32, 3406C, 3456, 3412C, 3508B, 3512B, AND 3516B ELECTRIC POWER GENERATORS |
| 1420 4461 |
PS42948 |
| NOTE: |
This Program must be administered either before or after failure.
In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS42948" as the Part Number
and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code.
If administered after failure, use "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code. |
| NOTE: |
The information supplied in this service letter may not be valid after the termination date of this program.
Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst. |
| The existing IEC circuit breaker shipped with the Affected Products should not be used on certain Electric Power Generators with CSA certification in Canada. |
Qty |
Part Number |
Description |
|
*******Group 1*******
|
| 1 |
1680345 |
LUG AS |
| 1 |
2424915 |
BREAKER AS. |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
|
*******Group 2*******
|
| 1 |
2449857 |
HARNESS AS |
| 1 |
2449901 |
BREAKER AS |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
|
*******Group 3*******
|
| 1 |
2449847 |
LUGS |
| 1 |
2449920 |
BREAKER AS |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
|
*******Group 4*******
|
| 1 |
2704535 |
BREAKER AS |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
|
*******Group 5*******
|
| 1 |
2704537 |
BREAKER GP-CIRCU |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
|
*******Group 6*******
|
| 1 |
2704541 |
BREAKER AS.-CIRC |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
|
*******Group 7*******
|
| 1 |
2704543 |
BREAKER AS.-CIRC |
| 1 |
2704546 |
COVER AS |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
|
*******Group 8*******
|
| 1 |
2449847 |
LUGS |
| 1 |
3066386 |
BREAKER AS |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
|
*******Group 9*******
|
| 2 |
3F9556 |
LOCKWASHER |
| 2 |
8T4189 |
BOLT |
| 2 |
8T4224 |
WASHER-HARD |
| 2 |
1434456 |
INSULR-LO V |
| 1 |
2449847 |
LUGS |
| 1 |
2952367 |
TERMINAL-COPPER |
| 1 |
3066387 |
BREAKER AS |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
|
*******Group 10*******
|
| 1 |
3060369 |
HARNESS AS |
| 1 |
3115765 |
BREAKER AS |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
|
*******Group 11*******
|
| 1 |
3060369 |
HARNESS AS |
| 1 |
3115766 |
BREAKER AS |
| In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 9% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer. |
Replace the IEC circuit breaker with an UL circuit breaker.
1. Isolate Genset before commencing any work on the unit; Ensure health and safety requirements are adhered to at all times. Also, ensure proper Lock Out-Tag Out procedures are followed at all times while work is being performed on the system. Lock out generator before commencing any type of work.
2. Remove the circuit breaker cover as detailed in the Operation and Maintenance Manual.
3. Confirm the system is isolated at the load side and disconnect power cables on the load side.
4. Disconnect the power cables at the generator side of the circuit breaker.
5. Remove the circuit breaker assembly from the circuit breaker bracket, this will require two people. Remove the copper lugs and neutral bar if replacement parts have been listed.
6. From the ordered parts, follow the instructions to sub assemble the circuit breaker.
7. Install replacement circuit breaker sub assembly to the circuit breaker bracket using the existing hardware following the Operation and Maintenance Manual.
8. Reconnect power cables to the generator side then the load side following Operation and Maintenance Manual.
9. Run functional test on circuit breaker.
10. Install cover panel. Clear generator area and put system back into service. |