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Information governor assy, mec Denso
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Cross reference number
Part num
Firm num
Firm
Name
09130-04874
S2231-0540
GOVERNOR ASSY, MEC
Information:
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 be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS4737" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use " T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use " Z" as the SIMS Description Code.
Although this Program is to be administered as described above on the Affected Product, parts should be removed from parts stock as soon as possible.
This Revised Service Letter replaces the April 28, 1992 (Revised June 1992) Service Letter. Various changes have been made to split the Affected Product into three groups instead of two.
Termination Date
April 30, 1993Problem
The fuel lines on certain D9N Tractors, 589 Pipelayers, 631E Tractors, 637E Tractors, 657E Scrapers, 768C Tractors, 769C Trucks, 834B Tractors, and 988B Loaders may fail. New fuel line groups can be installed that have a longer service life.
Affected Product
Model & Identification Number
Group 1
D9N (1JD1288, 1295, 1296, 1298-3280)
589 (31Z423-469)
631E (1AB965-1456; 1NB769-771)
637E TR (1FB361-537; 1JB612-724)
657E SC (90Z186-209; 91Z317-448)
768C (02X360-370)
769C (01X4394, 4403, 4418, 4420-5960)
Group 2
988B (50W08961, 50W8962, 50W8964-11257)
Group 3
834B (92Z368, 92Z370, 92Z373-512)
Parts Needed
Group 1
4 - 4B4274 Washer2 - 7C6525 Fuel Line Clamp2 - 7C6589 Fuel Line Clamp1 - 6I0030 Lines Group6 - 5M2894 Washer4 - 9N3388 Screw6 - 0S0509 BoltGroup 2
4 - 4B4274 Washer2 - 7C6525 Fuel Line Clamp2 - 7C6589 Fuel Line Clamp1 - 6I0030 Lines Group11 - 5M2894 Washer4 - 9N3388 Screw1 - 4P8261 Bracket1 - 4P8385 Bracket2 - 5P0537 Washer5 - 0S1571 Bolt6 - 0S0509 Bolt2 - 0S1615 Bolt3 - 8T1296 Washer1 - 1010462 RodGroup 3
4 - 4B4274 Washer2 - 7C6525 Fuel Line Clamp2 - 7C6589 Fuel Line Clamp1 - 1029884 Lines Group4 - 9N3388 Screw5 - 5M2894 Washer4 - 0S0509 Bolt1 - 0S1594 BoltAction Required
Parts Stock
Remove all 7C6931, 7C6932, 7C6933, 7C6934, 7C6935, 7C6936, 7C6937, and 7C6938 Fuel Lines from parts stock.
Affected Product
Remove the existing fuel lines and install the new fuel injection line groups as a group. Do not disassemble the fuel line groups and install them one line at a time. See the attached (pending) procedure.
Do not over tighten the screws of the metal-to-metal fuel line clamps. Use a 6V6069 Torque Screwdriver or similar tool to tighten the screw to a torque of 2.25 N m (20 lb.in.).
Service Claim Allowances
Parts Stock
Submit one claim for all 7C6931, 7C6932, 7C6933, 7C6934, 7C6935, 7C6936, 7C6937, and 7C6938 Fuel Lines removed from parts stock.
Affected Product
This is a 3-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Attach. (1-Rework Procedure)Rework Procedure
Refer to the parts list and illustrations. Replace the existing fuel lines and their
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 be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS4737" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use " T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use " Z" as the SIMS Description Code.
Although this Program is to be administered as described above on the Affected Product, parts should be removed from parts stock as soon as possible.
This Revised Service Letter replaces the April 28, 1992 (Revised June 1992) Service Letter. Various changes have been made to split the Affected Product into three groups instead of two.
Termination Date
April 30, 1993Problem
The fuel lines on certain D9N Tractors, 589 Pipelayers, 631E Tractors, 637E Tractors, 657E Scrapers, 768C Tractors, 769C Trucks, 834B Tractors, and 988B Loaders may fail. New fuel line groups can be installed that have a longer service life.
Affected Product
Model & Identification Number
Group 1
D9N (1JD1288, 1295, 1296, 1298-3280)
589 (31Z423-469)
631E (1AB965-1456; 1NB769-771)
637E TR (1FB361-537; 1JB612-724)
657E SC (90Z186-209; 91Z317-448)
768C (02X360-370)
769C (01X4394, 4403, 4418, 4420-5960)
Group 2
988B (50W08961, 50W8962, 50W8964-11257)
Group 3
834B (92Z368, 92Z370, 92Z373-512)
Parts Needed
Group 1
4 - 4B4274 Washer2 - 7C6525 Fuel Line Clamp2 - 7C6589 Fuel Line Clamp1 - 6I0030 Lines Group6 - 5M2894 Washer4 - 9N3388 Screw6 - 0S0509 BoltGroup 2
4 - 4B4274 Washer2 - 7C6525 Fuel Line Clamp2 - 7C6589 Fuel Line Clamp1 - 6I0030 Lines Group11 - 5M2894 Washer4 - 9N3388 Screw1 - 4P8261 Bracket1 - 4P8385 Bracket2 - 5P0537 Washer5 - 0S1571 Bolt6 - 0S0509 Bolt2 - 0S1615 Bolt3 - 8T1296 Washer1 - 1010462 RodGroup 3
4 - 4B4274 Washer2 - 7C6525 Fuel Line Clamp2 - 7C6589 Fuel Line Clamp1 - 1029884 Lines Group4 - 9N3388 Screw5 - 5M2894 Washer4 - 0S0509 Bolt1 - 0S1594 BoltAction Required
Parts Stock
Remove all 7C6931, 7C6932, 7C6933, 7C6934, 7C6935, 7C6936, 7C6937, and 7C6938 Fuel Lines from parts stock.
Affected Product
Remove the existing fuel lines and install the new fuel injection line groups as a group. Do not disassemble the fuel line groups and install them one line at a time. See the attached (pending) procedure.
Do not over tighten the screws of the metal-to-metal fuel line clamps. Use a 6V6069 Torque Screwdriver or similar tool to tighten the screw to a torque of 2.25 N m (20 lb.in.).
Service Claim Allowances
Parts Stock
Submit one claim for all 7C6931, 7C6932, 7C6933, 7C6934, 7C6935, 7C6936, 7C6937, and 7C6938 Fuel Lines removed from parts stock.
Affected Product
This is a 3-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Attach. (1-Rework Procedure)Rework Procedure
Refer to the parts list and illustrations. Replace the existing fuel lines and their