PRODUCT SUPPORT PROGRAM FOR INSTALLING SWITCH ASSEMBLY TO PROVIDE FUEL PRIMING CAPABILITY TO XQ30 - XQ100 GENSETS
Usage:
REBE2335-00
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| 05Oct2007 |
U-508
A-415
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| Before/After | PRODUCT SUPPORT PROGRAM FOR INSTALLING SWITCH ASSEMBLY TO PROVIDE FUEL PRIMING CAPABILITY TO XQ30 - XQ100 GENSETS |
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| 1258 1000 1408 | PS42531 |
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| 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 "PS42531" 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. |
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| 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. |
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TERMINATION DATE |
| 31Oct2009 |
PROBLEM
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| The existing electronic fuel pump on the C3.3 and C4.4 Engines can have difficulties in priming or purging air from the fuel system during servicing, installation, fuel system repair, or if the unit runs out of fuel on certain XQ30 - XQ100 Gensets. The unit has no way of running the fuel transfer pump prior to cranking the engine, and use of the crank cycle to prime the fuel system may reduce battery and starter motor life. |
AFFECTED PRODUCT
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| Model | Identification Number |
| C3.3 | N3X00100-00101, 103-104, 106-126 X3B00204-00209 |
| C4.4 | N4R00200-00209, 300-306, 309-310, 312-316 N4X00101-00102, 200-219, 222 XYC00233-00297, 300-303, 305-466, 468-485, 488-490, 504-521, 523-545, 547-568, 570-572, 578, 580, 582-583, 585-590, 595-622, 624-657, 660-680 XYD00200-00298, 300-317, 319-328, 349-365, 367-384, 386-398, 400-414, 447-608, 614-622, 626-630, 636, 644-645 |
PARTS NEEDED
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Qty |
Part Number | Description |
| 10 | 1S9593 | STRAP-CABLE |
| 2 | 8T4179 | BOLT |
| 2 | 8T4223 | WASHER-HARD |
| 1 | 9D3721 | SWITCH-TOGGLE |
| 1 | 2947897 | HARNESS AS |
| 1 | 2950452 | FILM-FUEL PUMP |
| 1 | 2950453 | BRACKET-MOUNTING |
ACTION REQUIRED
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| Install priming switch. Refer to the attached Rework Procedure. |
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SERVICE CLAIM ALLOWANCES
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0-36 mo |
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| NOTE: This is a 0.5-hour job | ||||||
| It is suggested the Rework Procedure be performed during standard maintenance. |
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PARTS DISPOSITION
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| Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |
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| 1. Isolate Genset before commencing any work on the unit, activate Emergency stop, open Genset breaker and disconnect battery cables. Ensure health and safety requirements are adhered to at all times. 2. Fit 294-7897 priming harness wire 53A to position 2 of 9D-3721 switch and 294-7897 priming harness wire + to position 3 of 9D-3721 Switch as shown in Image 1.1.1. 3. Secure 9D-3721 toggle switch to 295-0453 bracket using the hex nuts, lock ring and washer that are provided with 9D-3721 switch. There is a locating hole in the bracket, which will allow the correct orientation of the switch. |
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| Image1.1.1 |
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| Image1.1.2 |
| 4. Fit bracket to engine flywheel housing Image 1.1.2 using (2) 8T-4179 bolts and 8T-4223 washers as shown Image 1.3.1. |
| 5. Attach 295-0452 Film to bracket in a visible location (Image 1.3.1). |
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| Image1.3.1 |
| 6. Connect 294-7897 priming harness wire + to the positive connection on the starter motor solenoid (Image 1.4.1). |
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| Image1.4.1 |
| 7. Locate fuel control solenoid mounted on the fuel injector pump (Image 1.5.1) and disconnect wire 53A from solenoid. |
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| Image1.5.1 |
| 8. Connect the female terminal on wire 53A of 294-7897 priming harness to the fuel solenoid (Image 1.6.1). |
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| Image1.6.1 |
| 9. Connect wire 53A from the engine harness to the male connector on wire 53A of the priming harness (Image 1.7.1). 10. Use the 1S-9593 cable ties to secure the harness to the bracket and the main DC engine harness. |
|
| Image1.7.1 |
| 11. Clear generator area, reconnect batteries, and release emergency stop. 12. Run functional No load test on Genset. |
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