1994/01/17 Caterpillar

New Flywheel Assembly With Oil Dam Helps Prevent Premature Wear On Internal Splines {1156}

Usage:

D9N (1JD, 6XJ) Tractors, 589 (31Z) Pipelayers

SUPPLEMENT: 02/28/94

Service Magazine; January 17, 1994; Page 20; "New Flywheel Assembly With Oil Dam Helps Prevent Premature Wear On Internal Splines"

The Subtitle of the article is incomplete. The correct Subtitle follows:

D8L (7YB, 7JC, 53Y),

D9N (1JD, 6XJ) Tractors;

589 (31Z) Pipelayers

--------------- END SUPPLEMENT ---------------

Description of Change: A new flywheel assembly with an oil dam is used. The oil dam will help prevent premature wear on the internal splines.

Adaptable To: The new 107-9192 Flywheel Assembly, when used with the new 7X-2623 Ring in place of the former 1S-8385 Ring in the torque converter group, is a direct replacement for the former 2W-8026 Flywheel Assembly in the 2W-8025 Flywheel Group. The new flywheel assembly is in effect with 3408 Machine Engines 48W36547 in the above machines.

Caterpillar Information System:

1994/01/17 New Tube Assembly With Bellows At Each End Used In Engine Air Lines Groups {1058}

1994/01/17 9X6779 Radio Has No Memory {7338}

1994/01/17 List Of Entertainment Radios For Earth Moving And Agriculture Equipment {7300}

1994/01/17 Improved 24-12 Volt Converters Available {1400,1421}

1994/01/17 Brake System Servicing {4005}

1994/01/17 Knocking Noise In Front Suspension Frame Group Can Be Eliminated With Shims {7200,7050}

1994/01/17 Cold Weather Instructions For Nitrogen Charged Tension Cylinders And Low Nitrogen Pressure Alarm System {4197}

1994/01/10 Clarify Usage Of Parts Service Cylinder Head Gaskets{1124}

1994/01/10 New Idler Pulley Assembly Used In Refrigerant Compressor Group{1802}

1994/01/10 Correct Position Of Clamp Assembly Is Required To Prevent Tie Rod Damage{4318,4329}

1994/01/10 New Rear Wheel Bearing Adjustment Procedures{4208}

1993/12/27 New Flexible Hose Assembly Used in the Exhaust Bypass Group {1057}

1994/01/17 New Control Assemblies Used In Fuel Injection Control Groups {1298}

1994/01/17 New Valve Cover Gasket Used {1107}

1994/01/17 Low Coolant Level Plate In Radiator May Cause False Coolant Level Readings {1353}

1994/01/24 New Flow Control Knobs Available To Improve Disassembly {5137}

1994/01/24 Heavy Duty Direction Signal Flasher Is Now Used {1430}

1994/01/24 Adjusting Front Wheel Bearings If The Spindles Are Too Long {4205,4201}

1994/01/24 O-Ring Seal Added To Heater Lines Group {1380}

1994/01/24 Removing And Installing Front Suspension Cylinders {7201,7200}

1994/01/24 Higher Output Alternator Used {1405,1406,1400}

1994/01/24 Longer Adapter Used To Prevent Hose Chafing In The Steering Lines Group {4304,4300}

1994/01/24 Tail Gate Lines Group Changed To Prevent Hose Contact With Back-up Lamps And Body Hinge Pin {5057,5050}

1994/01/24 New Discs (Thrust Washers), Planet Gears and Spacers Used In Interaxle Differential Group To Improve Service Life {3287,3250}