RING-SEAL 7N2856 - Caterpillar

Caterpillar: Confidential Yellow
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.
This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS0913" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
Termination Date
June 30, 1997Problem
The air cleaner mounting brackets on certain 3516 Generator Set Engines with 807 Frame Generator, 4P3016 and 7C1628, may fail due to cracking. Under certain conditions a high frequency vibration can be transmitted to the air cleaner mounting brackets causing them to crack.
Affected Product
Model & Identification Number
Group 1 (with 4P3016 Generator)
3516 (25Z1452, 25Z2228, 25Z2247, 25Z2278, 25Z2315, 25Z2317, 25Z2325, 25Z2334, 25Z2344 , 25Z2371, 25Z2376, 25Z2377, 25Z2379, 25Z2414, 25Z2417, 25Z2419, 25Z2419 , 25Z2420, 25Z2443, 25Z2448, 25Z2450, 25Z2490, 25Z2492, 25Z2509, 25Z2511 , 25Z2585, 25Z2596, 25Z2614, 25Z2618, 25Z2627, 25Z2629, 25Z2665, 25Z2671 , 25Z2672, 25Z2675, 25Z2678, 25Z2682-2685, 25Z2688, 25Z2689, 25Z2690 , 25Z2694, 25Z2752, 25Z2754, 25Z2755, 25Z2815, 25Z2818, 25Z2824, 25Z2828 , 25Z2838, 25Z2864, 25Z2866, 25Z2869, 25Z2870, 25Z2872, 25Z2873, 25Z2875 , 25Z2891, 25Z2924, 25Z2925, 25Z2934, 25Z2935, 25Z2955, 25Z2956, 25Z2968 , 25Z2972, 25Z2975, 25Z2976, 25Z2995, 25Z3010, 25Z3013, 25Z3019, 25Z3021-3024 , 25Z3026, 25Z3029, 25Z3031, 25Z3032, 25Z3036, 25Z3039, 25Z3052 , 25Z3053, 25Z3077, 25Z3201, 25Z3204, 25Z3218, 25Z3238, 25Z3266, 25Z3268 , 25Z3281, 25Z3283, 25Z3290, 25Z3294)
Group 2 (with 7C1628 Generator)
3516 (25Z1285, 25Z1450, 25Z1451, 25Z1466, 25Z1467, 25Z1470, 25Z1471, 25Z1487, 25Z1492 , 25Z1495, 25Z1502, 25Z1523, 25Z1531, 25Z1534, 25Z1535, 25Z1540, 25Z1544 , 25Z1553, 25Z1560-1562, 25Z1566, 25Z1568, 25Z1573, 25Z1600, 25Z1627 , 25Z1639, 25Z1662, 25Z1676, 25Z1678, 25Z1680, 25Z1685, 25Z1695, 25Z1699 , 25Z1707, 25Z1711, 25Z1719, 25Z1725, 25Z1727, 25Z1731, 25Z1742, 25Z1748 , 25Z1749, 25Z1788, 25Z1790, 25Z1791, 25Z1794-1796, 25Z1799, 25Z1804 , 25Z1808, 25Z1817, 25Z1822, 25Z1823, 25Z1826, 25Z1832, 25Z1851-1854 , 25Z1857, 25Z1859, 25Z1862, 25Z1863, 25Z1916, 25Z1919, 25Z1921 , 25Z1928, 25Z1930, 25Z1934, 25Z1936, 25Z1938-1942, 25Z1945 25Z1955 , 25Z1963, 25Z1965, 25Z1967-1969, 25Z1972, 25Z1973, 25Z1975-1980 , 25Z1999, 25Z2016, 25Z2020, 25Z2021, 25Z2024, 25Z2026, 25Z2028 , 25Z2035, 25Z2036, 25Z2038, 25Z2039, 25Z2047, 25Z2049, 25Z2051, 25Z2062-2064 , 25Z2066, 25Z2071, 25Z2102, 25Z2103, 25Z2106, 25Z2107, 25Z2109 , 25Z2116, 25Z2118, 25Z2121, 25Z2122, 25Z2124, 25Z2127, 25Z2130, 25Z2133 , 25Z2139, 25Z2161, 25Z2207, 25Z2208, 25Z2211, 25Z2214, 25Z2216, 25Z2239 , 25Z2271, 25Z2282, 25Z2286, 25Z2288, 25Z2289, 25Z2300, 25Z2311, 25Z2314 , 25Z2324, 25Z2326, 25Z2332, 25Z2337, 25Z2340, 25Z2341, 25Z2352, 25Z2353 , 25Z2357, 25Z2360, 25Z2367, 25Z2380, 25Z2390, 25Z2393, 25Z2403, 25Z2407 , 25Z2418, 25Z2423, 25Z2433, 25Z2436-2439, 25Z2441, 25Z2454, 25Z2455 , 25Z2471, 25Z2472, 25Z2474, 25Z2476, 25Z2477, 25Z2482, 25Z2486, 25Z2487 , 25Z2498, 25Z2501, 25Z2502, 25Z2505, 25Z2507, 25Z2515-2517, 25Z2519 , 25Z2520, 25Z2523-2526, 25Z2529, 25Z2553, 25Z2560, 25Z2566, 25Z2591 , 25Z2608, 25Z2612, 25Z2613, 25Z2615, 25Z2617, 25Z2637, 25Z2644, 25Z2647 , 25Z2649, 25Z2650, 25Z2653, 25Z2655, 25Z2663, 25Z2668, 25Z2680, 25Z2691 , 25Z2703, 25Z2722, 25Z2724, 25Z2740, 25Z2757, 25Z2765, 25Z2767, 25Z2769 , 25Z2774, 25Z2780, 25Z2784, 25Z2786, 25Z2787, 25Z2793, 25Z2805, 25Z2807 , 25Z2813, 25Z2816, 25Z2820, 25Z2821, 25Z2831, 25Z2835, 25Z2859, 25Z2861 , 25Z2878, 25Z2885, 25Z2888, 25Z2895, 25Z2900, 25Z2904, 25Z2910, 25Z2912 , 25Z2913, 25Z2916,