STEM ASSEM. 5S6102 - Caterpillar

This is a 1.5-hour job for Group 1
Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
100% 100% 0% 0% 0% 0%
This is a 1.5-hour job for Group 2
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
EXAMPLE COPY OF OWNER NOTIFICATION
XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999
SAFETY - PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING THE FAN
MODELS INVOLVED - CERTAIN C18, C27, 3412, 3412C, G3412, AND G3412C GENERATOR SETS
Dear Cat Product Owner:
The fan inside the generator needs to be inspected on the products listed below. The existing fan may have a nonconforming fit diameter. This may affect the safe operation of the generator set. If the fan has the nonconforming fit diameter, there is a risk that the fan could have been cracked during assembly and may break apart during operation causing a flying object hazard. If the fan has a nonconforming fit diameter causing a crack, creating a flying object hazard, this may, in conjunction with other factors or circumstances, result in a risk of personal injury or death. You will not be charged for the service performed.
Contact your local Cat dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.
If you are no longer the owner of this product(s), please contact your local Cat dealer so that our records can be updated.
You may now search for open Safety Service Letters by entering your product serial number(s). Visit the CAT.COM/SAFETY website and click on SUPPORT, then SAFETY SERVICES for more information. Please refer the dealer to their Service Letter dated 22Oct2018 when scheduling this service.
We regret the inconvenience this may cause you, and urge you to have this service performed for your safety and satisfaction.
Caterpillar Inc.
Identification #(s)
Attached to 22Oct2018 Service Letter
Rework Procedure
Instructions for Fan Inspection
Ensure that health and safety requirements are adhered to at all times.
1. Remove generator drip cover. Store drip cover and hardware for reuse.
2. Remove fan guard. Store fan guard and hardware for reuse.
3. Remove access plate to the flywheel and store hardware for reuse.
4. Use a barring tool. Turn the engine over and inspect the fan for any visible cracks.
5. If any cracks are observed, do not re-assemble. Do not operate the generator set. Have the Dealer Technical Communicator shall notify the factory and submit an inspection result to CPI number 431131 through CPI Feedback within the Service Information Management System (SIMSi), or if a failure occurred and any additional information is requested.
6. If no cracks are observed, remove the fan bolts. Store the fan bolts for reuse.
7. Carefully slide the fan back to allow for room to view the front of the fan.
8. Using a mirror or bore scope, inspect the front of the fan for stamp "FYMSA".
9. Carefully slide the fan back into place.
10. Thread the fan bolts by hand. Run down fan bolts using the alternating pattern.
11. Tighten the fan bolts to 258 +/- 40NM using an alternating pattern for proper installation.
12. Install fan guard
13.