PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY REMOVING 20R3317, 20R3318, 20R3320, 20R3321, 20R3324, 20R3328, AND 20R8517 REMAN VALVE ROCKER ARMS FROM DEALER PARTS STOCK Caterpillar


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PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY REMOVING 20R3317, 20R3318, 20R3320, 20R3321, 20R3324, 20R3328, AND 20R8517 REMAN VALVE ROCKER ARMS FROM DEALER PARTS STOCK [UEBE1213]
BASIC ENGINE
VALVE MECHANISM GP
PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY REMOVING 20R3317, 20R3318, 20R3320, 20R3321, 20R3324, 20R3328, AND 20R8517 REMAN VALVE ROCKER ARMS FROM DEALER PARTS STOCK
UEBE1213-01

15Sep2020
(Revised 17Sep2020)


U-556
A-459
D-526
O-517

 

Parts stock action only

  
  

PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY REMOVING 20R3317, 20R3318, 20R3320, 20R3321, 20R3324, 20R3328, AND 20R8517 REMAN VALVE ROCKER ARMS FROM DEALER PARTS STOCK

1123 7750
PI70840
NOTE:

AVSpare’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 AVSpare.

NOTE:

When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7751" as the Group Number, "56" as the 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 AVSpare product analyst.

 
NOTE:

This Revised Service Letter replaces the 15Sep2020 Service Letter. Changes have been made to Problem and Action Required.


TERMINATION DATE

31Dec2020

PROBLEM

Certain Reman 20R3317, 20R3318, 20R3320, 20R3321, 20R3324, 20R3328, and 20R8517 Valve Rocker Arms were assembled with the roller pin misaligned packaged before 15 June 2020. The pin must be aligned to allow oil flow through the rocker arm.

ACTION REQUIRED

Inspect all 20R3317, 20R3318, 20R3320, 20R3321, 20R3324, 20R3328, and 20R8517 Valve Rocker Arms in dealer parts stock.

Inspect the packaging date code on the individual rocker arms.

If the packaging date code is before 15 June 2020, then open packaging and inspect the rocker arm or rocker arms. Refer to the inspection for individual rockers arms.

If the packaging date code is on or after 15 June 2020, mark the packaging as inspected and return the part to dealer parts stock.

Inspection for 20R3317, 20R3318, 20R3320, 20R3321, 20R3324, 20R3328, and 20R8517 Valve Rocker Arms.

Rocker arms without a paint mark on top (Image1) are not affected. Mark the packaging as inspected and return to part stock.

Rocker arms with a paint mark on top (Image2) will need to be inspected for pin alignment.

If the roller pin is in alignment with the oil feed hole on the back of the rocker arm (Image3), then mark the packaging as inspected and return the rocker arm to dealer part stock.

If the roller pin is not in alignment with the oil feed hole on the back of the rocker arm (Image4), then remove the rocker arm from dealer part stock.
Image1
Image2
Image3
Image4

SERVICE CLAIM ALLOWANCES

Submit one claim for all parts removed from dealer parts stock.

PARTS DISPOSITION

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
 

Information System:

PRODUCT IMPROVEMENT PROGRAM FOR REMOVING CERTAIN 318-3721 HUMP HOSES FROM DEALER PARTS STOCK
PRODUCT SUPPORT PROGRAM FOR INSTALLING SOFTWARE ON CERTAIN 793F OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR INSPECTING AND POSSIBLY REROUTING THE EXCITION LEADS ON CERTAIN GENERATORS USED ON CERTAIN 795F AC OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE SPEED SENSOR ON CERTAIN COMPACTORS AND AP355F PAVERS
PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND REPLACING 395-5455 AND 395-5456 HOSE ASSEMBLIES ON CERTAIN MH3037 MATERIAL HANDLERS
PRODUCT IMPROVEMENT PROGRAM FOR REMOVING ALL 516-2725 DEF PUMPS FROM DEALER PARTS STOCK
PRODUCT SUPPORT PROGRAM FOR REPLACING THE SHIFT VALVE ON CERTAIN CP54B, CP56B, CS54B, CS56B, CS74B, AND CS78B VIBRATORY SOIL COMPACTORS
PRODUCT IMPROVEMENT PROGRAM FOR REROUTING THE HOSE ASSEMBLY FROM TOP OF THE CHARGE PUMP ON CERTAIN 259D3 COMPACT TRACK LOADERS AND 236D3/242D3 SKID STEER LOADERS
PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY REMOVING 583-6638 GRADER BLADE WING KITS IN DEALER PARTS STOCK
PRODUCT SUPPORT PROGRAM FOR REPLACING THE RADIATOR ON CERTAIN 793D OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR RELOCATING THE THERMOSTATIC CONTROL MODULE ON CERTAIN 797F OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE WHEEL (HUB) ON CERTAIN 745C ARTICULATED TRUCKS
PRODUCT SUPPORT PROGRAM FOR REWORKING THE TRANSMISSION ON CERTAIN 797, 797B, AND 797F OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HIGH PRESSURE FUEL FILTER ON CERTAIN 797F OFF-HIGHWAY TRUCKS ENGINES WITH HIGH ALTITUDE ARRANGEMENT
PRODUCT SUPPORT PROGRAM FOR REPLACING THE JACKET WATER PUMP ON CERTAIN 797F OFF-HIGHWAY TRUCKS WITH HIGH ALTITUDE ARRANGEMENT
PRODUCT SUPPORT PROGRAM FOR REPLACING THE MAGNETS ON THE MUD GUARD FOR THE DYNAMIC GAS BLENDING (DGB) LIQUID NATURAL GAS (LNG) TANK ON CERTAIN 785C OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE BRAKE CHARGING PUMP ON CERTAIN 773G AND 775G OFF HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR INSPECTING AND POSSIBLY REPLACING THE COMPRESSOR LINE CLAMPS ON CERTAIN 797F OFF-HIGHWAY TRUCKS WITH 4X4 ENGINE SERIAL PREFIX
PRODUCT SUPPORT PROGRAM FOR REPLACING THE 445-9753 EXHAUST BRACKET ON CERTAIN 794 AC AND 796 AC OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR INSPECTING THE CAMSHAFT ON CERTAIN 797F OFF-HIGHWAY TRUCKS, EQUIPPED WITH THE HIGH ALTITUDE ARRANGEMENT
PRODUCT SUPPORT PROGRAM FOR REPLACING THE PRODUCT LINK RADIO ON CERTAIN CATERPILLAR PRODUCTS
PRODUCT SUPPORT PROGRAM FOR INSPECTING CONNECTING RODS AND POSSIBLY REPLACING A CYLINDER PACK ON CERTAIN 793F AND 794 OFF-HIGHWAY TRUCKS
PRODUCT SUPPORT PROGRAM FOR INSTALLING A NEW FRONT WHEEL ON CERTAIN 777G OFF-HIGHWAY TRUCKS AT REBUILD
PRODUCT SUPPORT PROGRAM FOR REPLACING THE MACHINE PIN PLATE ON CERTAIN 150 AND 160 MOTOR GRADERS