1994/01/31 Caterpillar

New Transmission Cooler Group Used {1375}

Usage:

814B (16Z) Tractors;
815B (17Z),
816B (15Z) Compactors

Description of Change: A new transmission oil cooler group is used on the 3306 Engines in the above machines. The new group includes new core assembly (1) The new core assembly has rubber end sheets while the core assembly in the former group was a brazed assembly. The new core assembly will provide improved durability.

Location of new 7W-5986 Core Assembly (1) in new 7W-1470 Transmission Cooler Group.

Adaptable To: The new 7W-1470 Transmission Cooler Group is a direct replacement for the former 1N-4353 Transmission Cooler Group. The former group is canceled. The new transmission cooler group is in effect on the above machines with 3306 Engine 8Z25425 and adaptable to 3306 Engines 8Z3945 through 8Z25424. The new cooler group includes the new 104-1815 Core Assembly. The new core assembly can be used as a direct replacement for the former 1N-3082 Core Assembly whicn is canceled.

Caterpillar Information System:

1994/01/31 New Longer Fan Adapter Used On Replacement Engine {1359,1356}

1994/01/31 New Torque For Transmission To Differential And Differential To Rear Housing Bolts {3250,3258}

1994/01/31 New Transmission Shift Solenoid Valve Resists Cracking {3174}

1994/01/31 New Flywheel Eliminates Hydraulic Force On Crankshaft {1156}

1994/01/31 New Service And Parking Brake Group Is Available {4250,4267}

1994/01/31 B Series Backhoe Loader May Experience Brake Chatter {3278}

1994/01/31 Transmission Control Valve Changes On Backhoe Loaders {3150,3152}

1994/01/31 High Torque Steering Motor Available {4136}

1994/01/31 High Torque Steering Motor Available {4136}

1994/01/24 Brake Assembly In Drum Drive Motors Has More Discs And Plates {4267}

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

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

1994/01/31 Air Conditioners Use R134a Refrigerant {7300}

1994/01/31 Automatic Shut-Off Systems Not Recommended on Mobile Earthmoving Equipment {7418,7403}

1994/02/07 Screened Fitting for Implement Motor Case Drain Return Line Available{5720,4351,4921}

1994/02/07 New Hose Clamps Provide Improved Clamping{1058}

1994/02/07 Lock Valve Group With A Relief For Right Blade Lift Cylinder Is Available On Motor Graders{5102,5100}

1994/02/07 New Radiator Hose Clamp Allows Easier Tightening{1380}

1994/02/07 New Radio Mount Available For B Series Backhoe Loaders Equipped With Air Conditioning{7338}

1994/02/07 Cover Assembly Protect Hydraulic Tank Sight Glasses{5056}

1994/02/07 New Pinion And Seal Assembly Replaces The Former Carbon Seal{3280,3254,3250}

1994/02/07 New Wheel Bearing Adjustment Procedures{4208}

1994/02/07 Sump Guard Assembly (Crankcase Guard) Is Deeper And Has Thicker Material To Improve Clearance And Resist Bending{7151}

1994/02/07 Suspension Control Valve Mounting Group Bolt Torque Specification Is Reduced To Prevent Control Valve Sticking And Scuffing{7214}