PSP FOR INSTALLING NEW FUEL INJECTION LINE BRACKETS AND CLAMPS ON CERTAIN D8L TRACTORS, D9N TRACTORS, 589 PIPELAYERS, 631E SCR APERS, 637E SCRAPERS, 657E SCRAPERS, 768C TRACTORS, 769C TRUCKS, 834B TRACTORS, AND 988B LOADERS - PS4428 - MAILED US AND C Caterpillar


PSP FOR INSTALLING NEW FUEL INJECTION LINE BRACKETS AND CLAMPS ON CERTAIN D8L TRACTORS, D9N TRACTORS, 589 PIPELAYERS, 631E SCR APERS, 637E SCRAPERS, 657E SCRAPERS, 768C TRACTORS, 769C TRUCKS, 834B TRACTORS, AND 988B LOADERS - PS4428 - MAILED US AND C

Usage:

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Caterpillar: Confidential Yellow

PSP FOR INSTALLING NEW FUEL INJECTION LINE BRACKETS AND CLAMPS ON CERTAIN D8L TRACTORS, D9N TRACTORS, 589 PIPELAYERS, 631E SCR APERS, 637E SCRAPERS, 657E SCRAPERS, 768C TRACTORS, 769C TRUCKS, 834B TRACTORS, AND 988B LOADERS - PS4428 - MAILED US AND CA NADA, CACO, COFA, BRAZIL, CFEL, COSA

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.




U-63
A-35
AU-38
B-13
E-39
O-54
1252   PS4428
NOTE: 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
"PS4428" as Part Number, "7755" as Group Number, and "96" as
Description Code.

Termination Date

March 31, 1991

Problem

The fuel lines on certain D8L Tractors, D9N Tractors, 589 Pipelayers, 631E
Scrapers, 637E Scrapers, 657E Scrapers, 768C Tractors, 769C Trucks, 834B
Tractors, and 988B Loaders may fail. New brackets and clamps can be
installed to increase the service life of the fuel injection lines.

Affected Product

Model Identification Number
D8L  7YB962
7JC778
D9N  1JD1288, 1295, 1296, 1298-1356, 1358, 1361-2039, 2045, 2048,
2049, 2052
589  31Z423-452
631E 1AB965-1198, 1209
637E 1FB361-416, 418, 422
1JB612-724
657E 90Z186-193, 195, 196, 198, 199
91Z317-380, 382, 384
768C 02X360
769C 01X4394, 4403, 4418, 4420-4425, 4427-4430, 4432-4470, 4472-
4536, 4538-4981
834B 92Z368, 370, 373-378, 380, 384, 386-408
988B 50W8961, 8962, 8964-9085, 9087-9091, 9093-9015, 9107-9153,
9155-9284, 9286-9818, 9820-9828, 9830-9904, 9911-9913, 9915-
9922, 9924, 9932, 9935, 9937, 9952

Parts Needed

3 - 1C2251 Bolt
2 - 7C6525 Clamp-Fuel Line
2 - 7C6589 Clamp-Fuel Line
4 - 1H3333 Screw
3 - 5M2894 Washer
2 - 9Y3358 Spacer
1 - 9Y4577 Bracket

Action Required

Install the new brackets and clamps as shown in the Illustration on the last
page.

Service Claim Allowances

Product Caterpillar Dealer Suggested Customer Suggested
smu/age Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs.
whichever (D/N) (Cost)  (C/L) (Sell)
comes
first
0-5000 100% 1 0 1 0 0
0-24 mo
5001-7000 33 1/3% 1 0 0 50% 1
25-36 mo
NOTE: This is a 2-hour job.

Parts Disposition

All parts removed (with the exception of cores used for Caterpillar
Remanufactured parts) should be rendered useless and scrapped immediately
upon completion of the repair.
****** IMAGE: SEBE4264.00001.001
CAPTION: Location Of Parts

Caterpillar Information System:

PRIORITY - DIFFERENTIAL BEARING CAP BOLTS NEED TO BE TIGHTENED ON CERTAIN 814B WHEEL TRACTORS; 815B AND 816B COMPACTORS; AND 966 E LOADERS - PI3462 - MAILED US AND CANADA, CACO, CFEL, COSA LIMITED COFA PRIORITY - DIFFERENTIAL BEARING CAP BOLTS NEED TO BE TIGHTENED ON CERTAIN 814B WHEEL TRACTORS; 815B AND 816B COMPACTORS; AND 966 E LOADERS - PI3462 - MAILED US AND CANADA, CACO, CFEL, COSA LIMITED COFA
PARTS STOCK ACTION ONLY - HYDRAULIC CYLINDER PISTON NUTS MADE TO THIN DESIGN NEED TO BE REMOVED FROM PARTS STOCK - PI7233 - MAI LED US AND CANADA, CACO, COFA, BRAZIL, CFEL, COSA PARTS STOCK ACTION ONLY - HYDRAULIC CYLINDER PISTON NUTS MADE TO THIN DESIGN NEED TO BE REMOVED FROM PARTS STOCK - PI7233 - MAI LED US AND CANADA, CACO, COFA, BRAZIL, CFEL, COSA
Brackets And Clamps Need To Be Installed On The Fuel Lines Group Of Certain D10N Tractors; 651E And 656E Tractors; 773B Trucks; And 992C Loaders Brackets And Clamps Need To Be Installed On The Fuel Lines Group Of Certain D10N Tractors; 651E And 656E Tractors; 773B Trucks; And 992C Loaders
PRIORITY - PARTS STOCK ACTION NEEDED - HOUSINGS NEED TO BE INSPECTED FOR CHIPS AND BEARINGS NEED TO BE REPLACED IN THE RET ARDER AND TRANSFER GEAR GROUP ON CERTAIN 657E SCRAPERS - PI3459 - MAILED US, CANADA, CACO, COFA, COSA - REVISED 4/90 PRIORITY - PARTS STOCK ACTION NEEDED - HOUSINGS NEED TO BE INSPECTED FOR CHIPS AND BEARINGS NEED TO BE REPLACED IN THE RET ARDER AND TRANSFER GEAR GROUP ON CERTAIN 657E SCRAPERS - PI3459 - MAILED US, CANADA, CACO, COFA, COSA - REVISED 4/90
PSP FOR INSTALLING NEW BRAKE PLATES AND DISCS IN CERTAIN D4H, D5H, D6H, AND D7H TRACTORS - PS0432 - MAILED COFA PSP FOR INSTALLING NEW BRAKE PLATES AND DISCS IN CERTAIN D4H, D5H, D6H, AND D7H TRACTORS - PS0432 - MAILED COFA
Product Support Program For Replacing The Cylinder Block On Certain D8L Tractors And 631E Wheel Tractors Product Support Program For Replacing The Cylinder Block On Certain D8L Tractors And 631E Wheel Tractors
PSP FOR INSTALLING A NEW DIFFERENTIAL SEAL ON CERTAIN 631E AND 637E WHEEL TRACTORS - PS4413 - MAILED US, CANADA, CACO, COFA, BRA ZIL, CFEL, COSA PSP FOR INSTALLING A NEW DIFFERENTIAL SEAL ON CERTAIN 631E AND 637E WHEEL TRACTORS - PS4413 - MAILED US, CANADA, CACO, COFA, BRA ZIL, CFEL, COSA
SERVICE LETTER SUPPLEMENT FOR AUGUST 2, 1989 SL - PS4339 - PSP FOR REDUCING BEVEL GEAR AND PINION NOISE AND REDUCING THE RUST BEA RING WEAR ON CERTAIN 56 WINCHES USED ON D6H TRACTORS - MAILED US AND CANADA, CACO, COFA, CFEL, COSA SERVICE LETTER SUPPLEMENT FOR AUGUST 2, 1989 SL - PS4339 - PSP FOR REDUCING BEVEL GEAR AND PINION NOISE AND REDUCING THE RUST BEA RING WEAR ON CERTAIN 56 WINCHES USED ON D6H TRACTORS - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
PSP FOR INSTALLING NEW PISTON RINGS AND CYLINDER LINERS TO REDUCE OIL CONSUMPTION ON CERTAIN CHALLENGER 65 TRACTORS; 235C EXC AVATORS; AND 963 AND 97S LOADERS - PS0434 - MAILED COSA PSP FOR INSTALLING NEW PISTON RINGS AND CYLINDER LINERS TO REDUCE OIL CONSUMPTION ON CERTAIN CHALLENGER 65 TRACTORS; 235C EXC AVATORS; AND 963 AND 97S LOADERS - PS0434 - MAILED COSA
PSP FOR INSTALLING NEW PISTON RINGS AND CYLINDER LINERS TO REDUCE OIL CONSUMPTION ON CERTAIN CHALLENGER 65 TRACTORS; 235C E24 0, EL240, E300 AND EL300 EXCAVATORS; AND 963 AND 973 LOADERS - MAILED US, CANADA, CACO, COFA, CFEL - PS0434 PSP FOR INSTALLING NEW PISTON RINGS AND CYLINDER LINERS TO REDUCE OIL CONSUMPTION ON CERTAIN CHALLENGER 65 TRACTORS; 235C E24 0, EL240, E300 AND EL300 EXCAVATORS; AND 963 AND 973 LOADERS - MAILED US, CANADA, CACO, COFA, CFEL - PS0434
PSP FOR INSTALLING NEW ROLLERS IN THE ONE-WAY CLUTCH OF CERTAIN 56H WINCHES - PS4418 - MAILED US, CANADA, CACO, COFA, CFE L, COSA PSP FOR INSTALLING NEW ROLLERS IN THE ONE-WAY CLUTCH OF CERTAIN 56H WINCHES - PS4418 - MAILED US, CANADA, CACO, COFA, CFE L, COSA
PSP FOR INCREASING THE NUMBER OF DISCS AND PLATES IN THE STEERING CLUTCH AND BRAKE MODULES ON CERTAIN D9N AND D10N TRA CTO RS - PS0416 - MAILED CACO, COFA, CFEL, COSA - REVISED 10/90 PSP FOR INCREASING THE NUMBER OF DISCS AND PLATES IN THE STEERING CLUTCH AND BRAKE MODULES ON CERTAIN D9N AND D10N TRA CTO RS - PS0416 - MAILED CACO, COFA, CFEL, COSA - REVISED 10/90
PSP FOR REWORKING THE WINCH CONTROLS ON CERTAIN 518 SKIDDERS - PS4421 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA PSP FOR REWORKING THE WINCH CONTROLS ON CERTAIN 518 SKIDDERS - PS4421 - MAILED US AND CANADA, CACO, COFA, CFEL, COSA
PSP FOR REPAIRING CERTAIN 8SU BULLDOZERS ON D8N TRACTORS - PS0447 - MAILED COSA PSP FOR REPAIRING CERTAIN 8SU BULLDOZERS ON D8N TRACTORS - PS0447 - MAILED COSA
PSP FOR TURBOCHARGER TURBINE WHEEL ON D11N TRACTORS; 776B TRACTORS; 777B TRUCKS; AND 3508 ENGINES (SPARE) - PS4394 - MAI LED US AND CANADA, CACO, COFA, CFEL, COSA PSP FOR TURBOCHARGER TURBINE WHEEL ON D11N TRACTORS; 776B TRACTORS; 777B TRUCKS; AND 3508 ENGINES (SPARE) - PS4394 - MAI LED US AND CANADA, CACO, COFA, CFEL, COSA
Drain Holes May Need To Be Drilled In The ROPS Of Certain 950E Loaders. Drain Holes May Need To Be Drilled In The ROPS Of Certain 950E Loaders.
SERVICE LETTER SUPPLEMENT FOR MARCH 29, 1990 SL - PI3462 - PRIORITY - DIFFERENTIAL BEARING CAP BOLTS NEED TO BE TIGHTENED ON CERTAIN 814B WHEEL TRACTORS; 815B, 816B COMPACTORS; 966E LOADERS - MAIL US AND CANADA, CACO, CFEL, COSA, COFA SERVICE LETTER SUPPLEMENT FOR MARCH 29, 1990 SL - PI3462 - PRIORITY - DIFFERENTIAL BEARING CAP BOLTS NEED TO BE TIGHTENED ON CERTAIN 814B WHEEL TRACTORS; 815B, 816B COMPACTORS; 966E LOADERS - MAIL US AND CANADA, CACO, CFEL, COSA, COFA
PSP FOR REPLACING FAILED EXHAUST VALVES ON CERTAIN - SEE PAPER COPY FOR APPLICABLE MODELS - PS0452 - MAILED US AND CANADA, CAC O, COFA - REVISED 12/90 PSP FOR REPLACING FAILED EXHAUST VALVES ON CERTAIN - SEE PAPER COPY FOR APPLICABLE MODELS - PS0452 - MAILED US AND CANADA, CAC O, COFA - REVISED 12/90
PSP FOR REPEAT TRACK JOINT FAILURES (LEAKS) ON D8N TRACTORS - PS0430 - MAILED CACO PSP FOR REPEAT TRACK JOINT FAILURES (LEAKS) ON D8N TRACTORS - PS0430 - MAILED CACO
PSP FOR REPAIR OF CRACKS AND REINFORCEMENT OF THE CASE AND FRAME ASSEMBLY ON D5H CUSTOM SKIDDERS - PS4448 - MAILED US, CAN ADA PSP FOR REPAIR OF CRACKS AND REINFORCEMENT OF THE CASE AND FRAME ASSEMBLY ON D5H CUSTOM SKIDDERS - PS4448 - MAILED US, CAN ADA
PARTS STOCK ACTION ONLY - 8D6947 AND 9G5589 SWITCHES NEED TO BE REMOVED FROM PARTS STOCK - PI7234 - MAILED US AND CANADA, CAC O, COFA, BRAZIL, CFEL, COSA PARTS STOCK ACTION ONLY - 8D6947 AND 9G5589 SWITCHES NEED TO BE REMOVED FROM PARTS STOCK - PI7234 - MAILED US AND CANADA, CAC O, COFA, BRAZIL, CFEL, COSA
SERVICE LETTER SUPPLEMENT FOR FEBRUARY 11, 1990 SL - PS0416 - PSP FOR INCREASING THE NUMBER OF DISCS AND PLATES IN THE STE ERING CLUTCH AND BRAKE MODULES ON CERTAIN D9N AND D10N TRACTORS - MAILED CACO, COFA, CFEL, COSA SERVICE LETTER SUPPLEMENT FOR FEBRUARY 11, 1990 SL - PS0416 - PSP FOR INCREASING THE NUMBER OF DISCS AND PLATES IN THE STE ERING CLUTCH AND BRAKE MODULES ON CERTAIN D9N AND D10N TRACTORS - MAILED CACO, COFA, CFEL, COSA
PSP FOR MODIFYING THE LOWER HITCH AND INSTALLING A NEW LOWER HITCH PIN ON 508 SKIDDERS - PS0443 - MAILED US AND CANADA, COS A, LIMITED COFA PSP FOR MODIFYING THE LOWER HITCH AND INSTALLING A NEW LOWER HITCH PIN ON 508 SKIDDERS - PS0443 - MAILED US AND CANADA, COS A, LIMITED COFA
Brake Cylinder Kit Needs To Be Installed In The Service Brake Groups On Certain 966E Loaders Brake Cylinder Kit Needs To Be Installed In The Service Brake Groups On Certain 966E Loaders
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