Usage:
28Feb2018 |
(Revised 23Apr2019) |
After Failure Only | PRODUCT SUPPORT PROGRAM FOR INSTALLING CUFFED CYLINDER SYSTEM COMPONENTS ON CERTAIN XQC1200,AND XQC1600 POWER MODULES |
|
1225 1216 1215 | PS53697 |
NOTE: | Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar. |
NOTE: | 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 "PS53697" 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. |
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 28Feb2018 (Revised 29Oct2018) Service Letter. Changes have been made to the Parts Needed. |
TERMINATION DATE |
29Feb2020 |
PROBLEM
In high load conditions, certain single piece forged steel piston used in the Single Piece Cylinder System may develop hard deposits at the top land of the piston. If severe enough, deposits may wear the liner crosshatch, compromising oil control and contributing to additional deposit formation, wear, and blowby. |
AFFECTED PRODUCT
Model | Identification Number |
*******Group 1******* | |
XQC1600 | N1M00102-00116, 118-220, 222-306, 308-309, 311-315 |
*******Group 2******* | |
XQC1200 | N1G00117-00118, 120 |
PARTS NEEDED
Qty |
Part Number | Description |
*******Group 1******* | ||
16 | 1H9696 | SEAL-O-RING |
4 | 1S4810 | GASKET-OIL DRAIN |
4 | 2W0752 | GASKET |
1 | 3P6061 | GASKET |
2 | 4N1320 | GASKET-ADAPTER |
16 | 4S5898 | SEAL-O-RING |
32 | 5P0840 | SEAL-O-RING |
1 | 5P7818 | SEAL-O-RING |
8 | 5P9890 | SEAL-O-RING |
2 | 6V1454 | SEAL-O-RING |
5 | 6V5066 | SEAL-O-RING |
16 | 6V5101 | SEAL-O-RING |
16 | 6V9769 | SEAL-O-RING |
48 | 7N2046 | SEAL-O-RING |
1 | 7N4932 | GASKET |
1 | 7N4945 | GASKET |
16 | 7N5080 | GASKET-MANIFOLD |
16 | 7W8145 | GASKET-EXH MANF |
4 | 0336031 | SEAL-O-RING |
6 | 1092332 | SEAL-O-RING |
16 | 1106991 | GASKET-HEAD |
1 | 1111349 | GASKET |
2 | 1228856 | GASKET AS |
16 | 1272176 | SEAL-INTEGRAL |
16 | 1445692 | GASKET-PLATE |
16 | 1656668 | RING-PISTON |
16 | 1989926 | TUBE AS-OIL JET |
16 | 2302520 | BEARING-CONN ROD |
16 | 2407032 | SEAL-PIP |
16 | 2688154 | KIT-GASKET-SFI |
3 | 2697885 | SEAL-O-RING |
16 | 2720759 | SEAL-PIP |
16 | 2720760 | SEAL |
1 | 2986387 | SEAL-O-RING |
64 | 4200652 | SEAL AS-WATER |
64 | 4200653 | SEAL AS-WATER |
16 | 4483651 | RING-PISTON |
16 | 4549920 | LINER-CYLINDER |
16 | 4815617 | PISTON AS |
16 | 4889888 | RING-PISTON |
16 | 5160827 | SEAL-LINER |
16 | 5161856 | SLEEVE |
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 20% 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******* | ||
12 | 1H9696 | SEAL-O-RING |
4 | 1S4810 | GASKET-OIL DRAIN |
4 | 2W0752 | GASKET |
1 | 3P6061 | GASKET |
2 | 4N1320 | GASKET-ADAPTER |
12 | 4S5898 | SEAL-O-RING |
24 | 5P0840 | SEAL-O-RING |
1 | 5P7818 | SEAL-O-RING |
8 | 5P9890 | SEAL-O-RING |
2 | 6V1454 | SEAL-O-RING |
5 | 6V5066 | SEAL-O-RING |
12 | 6V5101 | SEAL-O-RING |
12 | 6V9769 | SEAL-O-RING |
36 | 7N2046 | SEAL-O-RING |
1 | 7N4932 | GASKET |
1 | 7N4945 | GASKET |
12 | 7N5080 | GASKET-MANIFOLD |
12 | 7W8145 | GASKET-EXH MANF |
4 | 0336031 | SEAL-O-RING |
6 | 1092332 | SEAL-O-RING |
12 | 1106991 | GASKET-HEAD |
1 | 1111349 | GASKET |
2 | 1228856 | GASKET AS |
12 | 1272176 | SEAL-INTEGRAL |
12 | 1445692 | GASKET-PLATE |
12 | 1656668 | RING-PISTON |
12 | 1989926 | TUBE AS-OIL JET |
12 | 2302520 | BEARING-CONN ROD |
12 | 2407032 | SEAL-PIP |
12 | 2688154 | KIT-GASKET-SFI |
3 | 2697885 | SEAL-O-RING |
12 | 2720759 | SEAL-PIP |
12 | 2720760 | SEAL |
1 | 2986387 | SEAL-O-RING |
48 | 4200652 | SEAL AS-WATER |
48 | 4200653 | SEAL AS-WATER |
12 | 4483651 | RING-PISTON |
12 | 4549920 | LINER-CYLINDER |
12 | 4815617 | PISTON AS |
12 | 4889888 | RING-PISTON |
12 | 5160827 | SEAL-LINER |
12 | 5161856 | SLEEVE |
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
This Service Letter provides support for replacing the Single Piece Cylinder System components with the Cuff Liner and Piston Components System, provided each of the following conditions is met. 1. Verify Oil Consumption exceeds limits listed in LEKQ7390 from the Electronic Media Center (emc.cat.com). 2. Verify Excessive Crankcase Blowby according to the procedure in SEHS8984. Some amount of blowby is generated by every engine and the amount of blowby will typically increase with age as parts wear. The repairing dealer must compare the results to the TMI engine specific Blowby data called out in the Performance Data. Special Note: For a Generator Set that is currently "Out-of-Service" and placed in storage, the exception to Crankcase Blowby verification would be to provide photo documentation of the cylinder liner, either by cylinder liner bore scope or the removal of the cylinder head. Document these special cases with a Product Health Service Request (SR) with the details and reference this publication in the description of the SR prior to submitting to Caterpillar. 3. Verify that the engine is seeing an increase trend in Nitration and Oxidation in the last three SOS reports. A trend is defined as at least three consecutive samples with Nitration and Oxidation levels greater than the guidelines listed below. - Nitration 12 UFM - Oxidation 24 UFM If all of these conditions are met, this Service Letter can be applied. Note: DO NOT mix single piece forged steel pistons designed for the Single Piece Cylinder System with single piece forged steel pistons designed for the Cuffed Cylinder System. Rotating masses and system dynamics are different between the designs and are not compatible within the same engine. Note: Connecting Rod and Piston Pins are highly reusable. For this reason, the Parts Needed tables do not list these parts. Refer to Image 1 for the ring compressor and installation tools required. Refer to Disassembly and Assembly, UENR5578 for repair info. Note: Install High Flow Piston Spray Jets and an Oil Pump Pressure Regulator cover to increase the engine oil pressure. Because of this update, also increase the oil filter pressure differential warning alarm set point. For XQC1600, only reset the Oil Filter Pressure Differential warning set point from 105KPA/15PSI to 138KPA/20PSI. XQC1200 set points remain 105KPA/15PSI. |
Image1 |
SERVICE CLAIM ALLOWANCES
*******Group 1******* | ||||||
0-24 mo |
||||||
25-37 mo |
||||||
38-50 mo |
||||||
51-60 mo |
NOTE: This is a 95.0-hour job for Group 1 | ||||||
*******Group 2******* | ||||||
0-24 mo |
||||||
25-37 mo |
||||||
38-50 mo |
||||||
51-60 mo |
NOTE: This is a 75.0-hour job for Group 2 | ||||||
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. |