243210 Volvo.Penta Screw

Problem
Some inconsistencies have been observed in the prefixes "MDN" and "HEN" bus support assembly. Specifically, some flat washers are got deformed when installed over slotted openings.To prevent potential hardware failures and to mitigate the risk of ingress of foreign materials into the generator barrel, all hardware connections need to be inspected. Any inconsistency found in the hardware connections need to be corrected.Solution
Caterpillar is aware of the problem, and is recommending the below rework procedure.For defects on components that belong to the package, the dealer must contact the Global Dealer Solutions Network (GDSN) at 1 309 636-8500 or by submitting a Service Request (SR) through PSCRM as outlined in Service Warranty Bulletin 3.19.
Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.
Accidental engine starting can cause injury or death to personnel. To prevent accidental engine starting, turn the ignition switch to the OFF position and place a do-not operate tag at the ignition switch location. Apply proper lockout/tagout procedure.
Personal injury or death can result from high voltage.When power generation equipment must be in operation to make tests and/or adjustments, high voltage and current are present.Improper test equipment can fail and present a high voltage shock hazard to its user.Make sure the testing equipment is designed for and correctly operated for high voltage and current tests being made.When servicing or repairing electric power generation equipment:
Make sure the unit is off-line (disconnected from utility and/or other generators power service) , and either locked out or tagged DO NOT OPERATE.
Remove all fuses.
Make sure the generator engine is stopped.
Make sure all batteries are disconnected.
Make sure all capacitors are discharged.Failure to do so could result in personal injury or death. Make sure residual voltage in the rotor, stator and the generator is discharged.
Rework Procedure
Required Parts
Table 1
Required Parts
Item Qty Part Number Part Name
1 4 33082 Flat Washer (3/8)
2 11 13110 Bolt (3/8-16 1.75 in)
3 19 33859 Flat Washer (3/8)
4 4 13107 Bolt (3/8-16)
5 4 13109 Bolt (3/8-16 1.5 in)
6 4 37024 Nylock Nut (3/8-16)
7 - - Support Bracket
8 10 13209 Bolt (1/2-13 1.5 in)
9 10 33086 Flat Washer (1/2)
10 22 33817 Flat Washer (1/2)
11 10 37030 Nylock Nut (1/2-13)
12 - - Support Bracket
13 3 WK4440000ZY0000(1) Bellville Spring Washer (3/8 Yellow Zinc Finish)
14 3 36306 Nut (3/8-16)
15 12 36310 Nut (1/2-13)
16 12 10412-14615 Bellville Washer (1/2)
17 12 13214 Bolt (1/2-13 2.75 in)
(1) This part must be ordered from the Fastenal branch located in Peoria, IL.The required parts must be ordered from Fastenal® using the web address below:https://www.fastenal.com/home;jsessionid=R3YJPK506lFPfg657Q0FhwWK.713728dc-d653-355a-a89c-3e45dac6e990
Required Tools
Caliper (for hardware inspection)
25 Nm Torque Wrench
60 Nm Torque Wrench
105 Nm Torque Wrench
9/16 Inch Socket
3/4 Inch Socket
9/16 Inch Box Wrench
3/4 Inch Box Wrench
Paint Markers for Torque Marks (Orange and Green)Rework Procedure
Perform the below rework procedure to replacing the hardware.Note: Only replace hardware on one joint at a time during this procedure.
Shutdown the generator set and follow Lock Out-Tag Out (LOTO procedure) to fully isolate the unit from power.