Improved High Ambient Cooling Configuration Available {1205,1350,1357,1384}
Usage:
Challenger 35 (8DN),
Challenger 45 (1DR) Agricultural Tractors
Reference: Service Magazine; October 21, 1996; Page 1; "High Ambient Cooling Package Available."
An improved high ambient cooling package is available. The high ambient pulleys and belts should increase ambient capability to 48.9°C (120°F). The improved configuration has increased pulley diameters for greater belt wrap and a larger belt section which substantially increases power handling capability as compared to the earlier high ambient cooling package. See the referenced article.
The components in the 143-3291 Pulley Group are listed in the following chart and may be installed as shown in the following illustration.
143-3291 High Ambient Pulley Group.
Caterpillar Information System:
1997/08/18 Improved Three-Point Hitch Rockshaft Seal And Wear Ring Prevents Dirt Packing {7120}
1997/08/11 Improved Switches Now Used To Prevent Open Contacts{1423}
1997/08/11 Supplement To Service Manual, SENR5890, Electronic Transmission Control System{1408,3168}
1997/08/11 Correction To Operation & Maintenance Manual, SEBU6955{0375}
1997/08/11 Improved Type 2 Brake Control Group Components{4258,4257,4262,4269}
1997/08/11 Ride Control Accumulator Recharging Procedure{5077,5050,5057}
1997/08/11 New Cartridge Group For Steering Accumulator Charging Valve Group Prevents Binding Of Cartridge Piston{4331,5081}
1997/08/11 Serviceable Parts for 4 Wheel Drive Front Axle Steering Cylinder{4303}
1997/08/04 VIMS-PC Compatibility{7601}
1997/08/04 Disassembly And Assembly Supplement Available For Limited Slip Differentials{3263}
1997/08/04 Reliability And Fatigue Strength Improved In Connecting Rod{1218,1219}
1997/08/04 Tractors And Trucks Include Filters For Early Hour Oil Changes To Ensure Clean Hydraulic System{5068,3067,4295,4070,4332,5056,1379,3103,3154,4257}
1997/08/18 New Flagpin Retention Method Improves Torsional Strength {7120}
1997/08/18 Four Wheel Drive All-Wheel-Steer Dead Engine Brake Inspection {4250,4265}
1997/08/18 Information Is Corrected On The 793C Engine Information Plate {1000,7557}
1997/08/18 New Engine Arrangements For High And Low Altitude Applications {1000}
1997/08/18 Changes To VIMS Truck Payload System {7601}
1997/08/18 New Transmission Control Group Improves Operator Comfort {3065}
1997/08/18 New Clamps And New Hose Now Used for Water Heater Lines To Improve Service Life {1383,1812}
1997/08/18 Improved Elbow Design For Draining Oil Filters {1308}
1997/08/18 Implement Control Levers Must Be Centered To Start Machine {5000,5063}
1997/08/18 New Constant Torque Hose Clamps Improve Heating And Air Conditioning System {1808,1812}
1997/08/18 Lubricity Limit Added To Preferred Distillate Fuel Recommendation {1280,7568}
1997/08/18 Use Separate Sampling Pump For Oil and Coolant {7542,7577}