Usage:
03May2012 |
(Revised 24Feb2014) |
Before/After | PRODUCT SUPPORT PROGRAM FOR INSPECTING AND/OR REPAIRING LIFT CYLINDER DRIFT ON CERTAIN 950H AND 962H WHEEL LOADERS AND IT62H INTEGRATED TOOLCARRIERS |
|
5102 5057 5067 | PS43589 |
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 "PS43589" 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. |
NOTE: | This Revised Service Letter replaces the 03May2012 Service Letter. Changes have been made to the Action Required and the Rework Procedure to add a note. |
TERMINATION DATE |
31May2014 |
PROBLEM
The existing lift cylinder piston seal assemblies may have been damaged due to dieseling on certain 950H and 962H Wheel Loaders and IT62H Integrated Toolcarriers. If the lift cylinder piston seal is damaged, it can leak leading to lift cylinder drift. |
AFFECTED PRODUCT
Model | Identification Number |
*******Group 1******* | |
950H | J5J00918-01041, 1043-1197, 1501-1515, 1517-1793 JAD00100, 102, 105-123, 125-142, 145-150, 153-345, 349-351, 357-408 K5K02115-02157, 2159-2227, 2229-2330, 2332-2338, 2340-2341, 2343-2344, 2346-2363, 2365-2383, 2385-2393, 2395-2398, 2400-2404, 2406-2415, 2417-2437, 2439-2447, 2449-2453, 2455-2478, 2480-2493, 2495-2553, 2555-2632, 2634-2655, 2657-2685, 2687-2759, 2761-2810, 2812-2837, 2839-2854, 2856-2861, 2863-2944, 2946-3008, 3010-3025, 3027-3182, 3184-3185, 3187-3189 M1G01488-01561, 1563-1594, 1596-1607, 1614-1647, 1651-1849, 1851-2442, 2800-3018 N1A02292, 2300, 2308-2309, 2311-2312, 2315-2316, 2318, 2320-2332, 2334-2342, 2346-2356, 2358-2373, 2375-2381, 2383-2395, 2397-2403, 2405, 2407-2411, 2422, 2424-2444, 2446-2447, 2449, 2451-2472, 2475, 2479-2499, 2501-2502, 2504-2513, 2525-2527, 2530-2534, 2536-2548, 2550-2563, 2565-2571, 2574-2590, 2594-2595, 2601-2602, 2604-2608, 2610, 2613-2623, 2625, 2627-2637, 2639-2640, 2647-2660, 2664, 2668, 2672, 2674-2678, 2680, 2682, 2684-2695, 2699-2706, 2709-2720, 2722-2732, 2734, 2737-2741, 2746-2748, 2750-2752, 2754-2789, 2791-2804, 2806-2817, 2819-2875, 2877-2882, 2884-2891, 2893-2902, 2904-2914, 2916-2922, 2925-2939, 2943-2948, 2950-2953, 2956-2960, 2962-2966, 2969, 2971, 2973-2976, 2978-2983, 2985-3000, 3002-3034, 3036-3060, 3062-3072, 3074-3079, 3081-3087, 3089-3104, 3106-3112, 3114-3117, 3121, 3123-3125, 3127-3130, 3132, 3134-3137, 3139-3141, 3145-3147, 3150, 3153-3167, 3169, 3171-3173, 3175-3176, 3178-3179, 3182-3183, 3185-3186, 3189-3198, 3200-3209, 3213, 3215, 3217-3219, 3221-3256, 3258-3260, 3262, 3264-3277, 3279-3282, 3285-3286, 3288-3300, 3303-3307, 3309-3312, 3314-3317, 3320-3321, 3323-3324, 3327-3329, 3331-3335, 3337-3339, 3341-3344, 3346, 3348-3351, 3353, 4000-4014, 4016-4020, 4022-4026, 4029, 4033-4037, 4040, 4042-4049, 4051-4054, 4056-4057, 4059-4060, 4062-4066, 4068-4075, 4077-4080, 4082-4089, 4092-4094, 4096, 4098-4099, 4101-4102, 4105-4107, 4109-4113, 4115-4117, 4120-4123, 4126-4128, 4130-4136, 4139-4143, 4146, 4148-4150, 4152-4158, 4160-4162, 4164, 4166, 4168-4170, 4172, 4174-4183, 4185-4186, 4188-4191, 4193-4196, 4198, 4203-4204, 4206-4209, 4211-4217, 4219-4220, 4222-4223, 4225-4226, 4228, 4230-4233, 4235, 4237-4246, 4248-4253, 4255-4263, 4265-4268, 4270, 4274-4280, 4283-4290, 4293-4305, 4308-4310, 4312-4323, 4325-4331, 4333-4342, 4345, 4347, 4349-4364, 4366, 4368-4371, 4373-4389, 4391-4393, 4395-4396 |
962H | J6J00297-00298, 300-301, 303-305, 307-314, 317-327, 502-504, 506-546 K6K00368-00370, 372-377, 379-387, 389-395, 397-408, 410-412, 414-425, 427-428, 430-439, 441-481, 483-486, 488-516 M3G00459-00835, 1200-1300 MAL00100, 103-119, 121-122 N4A00891-00893, 895-896, 899, 902-905, 907-910, 912-914, 920-955, 957, 960-961, 963-968, 971-977, 979-996, 998-1018, 1021-1022, 1026, 1028-1031, 1035-1040, 1044-1059, 1061-1063, 1067-1068, 1070-1081, 1084-1092, 1094-1100, 1102-1103, 1105-1108, 1110-1114, 1116-1119, 1121-1122, 1124-1141, 1143, 1145-1151, 1155-1156, 1158-1169, 1171-1184, 1186-1193, 1196-1197, 1199-1204, 1206-1209, 1211-1212, 1214-1215, 1217-1218, 1220-1223, 1225-1235, 1237, 1239, 1241, 1245, 1247-1252, 1255, 1258-1259, 1261-1262, 1266-1267, 1269, 1271-1272, 1274-1276, 1278-1285, 2003, 2005, 2007, 2009-2012, 2014-2015, 2019, 2021, 2023, 2027-2030, 2032-2035, 2037, 2041, 2044-2048, 2050-2056, 2058-2059, 2061-2062, 2064-2065, 2067-2070, 2072, 2074-2075, 2077-2078, 2082, 2084-2085, 2087, 2089-2091, 2094-2097, 2100, 2103-2104, 2108-2109, 2111, 2113-2114 |
962H OEM | L5S00100-00101 |
IT62H | M5G00414-00478, 600-689 |
*******Group 2******* | |
950H | J5J00883, 1042, 1516 JAD00103-00104, 124, 143-144, 151-152, 346-348, 352-356, 409 K5K02158, 2228, 2331, 2339, 2342, 2345, 2364, 2384, 2394, 2399, 2405, 2416, 2438, 2448, 2454, 2479, 2494, 2554, 2633, 2656, 2686, 2760, 2811, 2838, 2855, 2862, 2945, 3009, 3026, 3183, 3186 M1G01562, 1595, 1608-1613, 1648-1650, 1850 N1A02293-02299, 2301-2307, 2310, 2313-2314, 2317, 2319, 2333, 2343-2345, 2357, 2374, 2382, 2396, 2404, 2406, 2412-2421, 2423, 2445, 2448, 2450, 2473-2474, 2476-2478, 2500, 2503, 2514-2524, 2528-2529, 2535, 2549, 2564, 2572-2573, 2591-2593, 2596-2600, 2603, 2609, 2611-2612, 2624, 2626, 2638, 2641-2646, 2661-2663, 2665-2667, 2669-2671, 2673, 2679, 2681, 2683, 2696-2698, 2707-2708, 2721, 2733, 2735-2736, 2742-2745, 2749, 2753, 2790, 2805, 2818, 2876, 2883, 2892, 2903, 2915, 2923-2924, 2940-2942, 2949, 2954-2955, 2961, 2967-2968, 2970, 2972, 2977, 2984, 3001, 3035, 3061, 3073, 3080, 3088, 3105, 3113, 3118-3120, 3122, 3126, 3131, 3133, 3138, 3142-3144, 3148-3149, 3151-3152, 3168, 3170, 3174, 3177, 3180-3181, 3184, 3187-3188, 3199, 3210-3212, 3214, 3216, 3220, 3257, 3261, 3263, 3278, 3283-3284, 3287, 3301-3302, 3308, 3313, 3318-3319, 3322, 3325-3326, 3330, 3336, 3340, 3345, 3347, 3352, 3354-3355, 4015, 4021, 4027-4028, 4030-4032, 4038-4039, 4041, 4050, 4055, 4058, 4061, 4067, 4076, 4081, 4090-4091, 4095, 4097, 4100, 4103-4104, 4108, 4114, 4118-4119, 4124-4125, 4129, 4137-4138, 4144-4145, 4147, 4151, 4159, 4163, 4165, 4167, 4171, 4173, 4184, 4187, 4192, 4197, 4199-4202, 4205, 4210, 4218, 4221, 4224, 4227, 4229, 4234, 4236, 4247, 4254, 4264, 4269, 4271-4273, 4281-4282, 4291-4292, 4306-4307, 4311, 4324, 4332, 4343-4344, 4346, 4348, 4365, 4367, 4372, 4390, 4394 |
962H | J6J00291, 294, 299, 302, 306, 315-316, 501, 505 K6K00371, 378, 388, 396, 409, 413, 426, 429, 440, 482, 487 MAL00101-00102 N4A00889-00890, 894, 897-898, 900-901, 906, 911, 915-919, 956, 958-959, 962, 969-970, 978, 997, 1019-1020, 1023-1025, 1027, 1032-1034, 1041-1043, 1060, 1064-1066, 1069, 1082-1083, 1093, 1101, 1104, 1109, 1115, 1120, 1123, 1142, 1144, 1152-1154, 1157, 1170, 1185, 1194-1195, 1198, 1205, 1210, 1213, 1216, 1219, 1224, 1236, 1238, 1240, 1242-1244, 1246, 1253-1254, 1256-1257, 1260, 1263-1265, 1268, 1270, 1273, 1277, 1286, 2000-2002, 2004, 2006, 2008, 2013, 2016-2018, 2020, 2022, 2024-2026, 2031, 2036, 2038-2040, 2042-2043, 2049, 2057, 2060, 2063, 2066, 2071, 2073, 2076, 2079-2081, 2083, 2086, 2088, 2092-2093, 2098-2099, 2101-2102, 2105-2107, 2110, 2112, 2115 |
PARTS NEEDED
Qty |
Part Number | Description |
*******Group 1******* | ||
3 | 4J0524 | SEAL-O-RING |
4 | 7X2550 | BOLT-HEX HEAD |
2 | 8T6745 | RING-WEAR (After Failure Only) |
2 | 9J4164 | RING-WEAR (After Failure Only) |
2 | 1411774 | SEAL-O-RING (After Failure Only) |
2 | 2462896 | SEAL AS (After Failure Only) |
2 | 2462899 | RING-BACKUP (After Failure Only) |
2 | 3465193 | SEAL AS-BUFFER (After Failure Only) |
2 | 3465199 | SEAL-WIPER (After Failure Only) |
2 | 3465201 | SEAL-U-CUP (After Failure Only) |
1 | 3537179 | VALVE GP-CHECK-E |
1 | 3566755 | HOSE AS |
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 18% 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******* | ||
3 | 4J0524 | SEAL-O-RING |
4 | 7X2550 | BOLT-HEX HEAD |
2 | 8T6745 | RING-WEAR (After Failure Only) |
2 | 9J4164 | RING-WEAR (After Failure Only) |
2 | 1411774 | SEAL-O-RING (After Failure Only) |
2 | 2462896 | SEAL AS (After Failure Only) |
2 | 2462899 | RING-BACKUP (After Failure Only) |
2 | 3465193 | SEAL AS-BUFFER (After Failure Only) |
2 | 3465199 | SEAL-WIPER (After Failure Only) |
2 | 3465201 | SEAL-U-CUP (After Failure Only) |
1 | 3537179 | VALVE GP-CHECK-E |
1 | 3566758 | HOSE AS |
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 17% 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. |
ACTION REQUIRED
BEFORE FAILURE: 1. Check if the 353-7179 Back Pressure Valve has been installed in the field. If it has not been installed, install the valve and related parts. Refer to REHS4985, Special Instruction, "Field Installation of a Back Pressure Valve in the Return Line on Medium Wheel Loader Machines". NOTE: Production machines that have been built since the release of this Service Letter may have the backpressure check valve in a different location. The procedure that is covered by this Service Letter requires the valve location as per REHS4985, Special Instruction, "Field Installation of a Back Pressure Valve in the Return Line on Medium Wheel Loader Machines". 2. Perform a cylinder drift test on the lift cylinders. 3. If lift cylinder drift is within specification limits, use the proper procedure to evacuate air from the lift cylinders after installation, before returning the machine to service. Refer to REHS5497, Special Instruction, ?Procedure to Evacuate Air from Cylinders". 4. If lift cylinder drift exceeds specification limits, proceed with the ?AFTER FAILURE? rework procedure below. AFTER FAILURE: Refer to the attached Rework Procedure. |