New Material Increases Service Life Of Brake Hubs{4215,4208,4201}
Usage:
768B (79S),
772 (11S),
772B (64W),
776B (6JC),
776C (2TK),
776D (5ER),
784B (5RK) Tractors;
769 (99F),
769B (99F),
769C (01X),
769D (5TR),
771C (3BJ),
771D (6JR),
773 (63G),
773B (63W),
773D (7ER),
775D (6KR),
777 (84A),
777B (4YC),
777C (4XJ),
777D (3PR),
785 (8GB),
785B (6HK),
789 (9ZC),
789B (7EK),
793 (3SJ),
793B (1HL),
793C (4AR) Off-Highway Trucks
Description of Change: Eight new brake hubs made of a new material which will increase brake hub service life are replacing existing brake hubs in various brake groups. The former brake hubs and their new replacements are listed in the table below.
Adaptable To: The new brake hubs are a direct replacement for the former brake hubs listed in the following chart.
Caterpillar Information System:
1996/11/11 Special Instructions SEHS9896, REHS0037 And REHS0038 Available For Installation Of A Bolt-On Ball On Early Drawbars{6153,6157,6170,6171}
1996/11/11 Longer Battery Cable Now Used To Prevent Interference With Starting Motor Cover{1401}
1996/11/11 Improved Electronic Control Modules Reduce Electrical Interference{7490,3175}
1996/11/11 Special Instruction, SEHS9874-01, "Challenger Agricultural Tractors In Scraper Applications"{0375,0376,4150,7000}
1996/11/04 Fuel Injection Pump Bushings Have New Groove Adjacent To Load Ring {1251}
1996/11/04 Adjustment Procedure For Cab Door Latch And Hold-Open Release {7301,7308}
1996/11/04 New Suspension Frame Group Now Used To Prevent Cracking {7216,7203}
1996/11/04 Improper Monitoring Of DIFFERENTIAL OIL LEVEL By Vital Information Management System (VIMS) {3258,1920,7601}
1996/11/04 New Tooling Available To Install Power Take-off Output Shaft And Hitch Rock Shaft Seals {0745,3107,0755,7117}
1996/10/28 New Procedure For Installing The Gear On Scavenge Oil Pump Shafts Within Scavenge Oil Pump Groups {1312}
1996/10/28 Seal Kits For Hydraulic Unit Injector Pump Groups Available {1250,1714}
1996/10/28 Procedure To Assemble Hydraulic Pilot Line Fittings {5057}
1996/11/11 Hydraulic Oil Additive Used That Eliminates Noise In Differentials {3263}
1996/11/11 New Crankcase Guard Provides Increased Resistance To Damage{7151}
1996/11/11 New Cover Plates For Rear Of Headlight Guards Protect Wiring From Damage{7182}
1996/11/11 Foot Rest Has Been Added To Improve Operator Comfort{7301,7265}
1996/11/11 Incorrect Electronic Control Service Codes Film{1901}
1996/11/11 Follow Correct Maintenance Procedure To Extend Drum Drive Gear Reducer Service Life{5655}
1996/11/11 Service Replacements For Discontinued Piston Pump Groups{5070}
1996/11/11 New Threaded Gland Cylinder Heads Have Stronger Seal Land{7562,4303,5102,5104,5105,5223,5229,5265,5452}
1996/11/11 New Air Conditioner Evaporator Coil Improves Service Life{7343}
1996/11/11 Proper Retrofitting Of Air Conditioning Refrigerants{7320}
1996/11/11 Improved Fuel Pump Plunger Helps Prevent Plunger And Sleeve Scuffing In Service 8.5 mm Fuel Injection Pump Assembly For Sleeve Metering Fuel System (SMFS) Governor And Fuel Injection Pump Groups{1251,1286}
1996/11/18 New Compressor Cover Reduces Turbocharger Noise{1060,1052,1801}