Exhaust Extension Is Available For 776D Tractors And 777D Off-Highway Trucks{1061,1062}
Usage:
776D (5ER) Tractors;
777D (3PR, 2YW) Off-Highway Trucks
Description of Change: The 129-9477 Exhaust Extension Assembly is used in 7C-4013 Muffler Group (not serviced) and is a direct replacement for the former 1W-3394 Exhaust Extension. The 129-9477 Exhaust Extension Assembly features a 10° angle increase on the exhaust exit tube and is approximately 284 mm (11.2 in) longer than the former exhaust extension. These improved features will eliminate exhaust soot build up on the body and canopy assemblies.
Adaptable To: The 129-9477 Exhaust Extension Assembly is effective with 776D (5ER86) Tractors, 777D (3PR690) and 777D (2YW96) Off-Highway Trucks and is adaptable to all earlier models.
Caterpillar Information System:
1998/03/09 Use FT-2553 Leverage Tool For Removal And Installation Of Planet Carrier{3186}
1998/03/09 Procedure For Setting Hydraulic Hoist Relief Valve Has Been Corrected{5117,5083,5136}
1998/03/09 Updated Information For Improved Duo-Cone Seal Retainers On Certain Off-Highway Trucks{4251,4267,7561}
1998/03/09 Improvements Made To Eliminate Noise And Seal Wear On Lines Groups{5057,5102}
1998/03/09 New Stabilizer Pads Are Wider{7222}
1998/03/09 Improved Fuel Shut-Off Valve Prevents Leakage{1279,1329}
1998/03/09 Improved Cylinder Rod Extension Procedure{4197}
1998/03/09 Plug Added To Protect Upper Vertical Swing Link Bearing{4159,4151}
1998/03/02 Use 139-4166 CAT/ATA Universal Cable For Diagnostic Testing {1900,0781}
1998/03/02 Use 140-9944 Terminal Kit To Repair Wiring Harness {1400,0700}
1998/03/02 Improved Internal Rust Preventative Measures In Parts Service Machine Engines {1000,1050,1300,1350}
1998/03/02 Relocation Of The Differential Lock Switch Prevents Unintended Switch Activation {1408,3254}
1998/03/09 Correct Method For Checking Inside Diameter Of Cylinder Assembly In Rear Suspension Cylinder Group{7213}
1998/03/09 Engine Software Improvements Increase Wastegate And Low Pressure Turbocharger Service Life{1902,1057}
1998/03/09 New Front Suspension Cylinder{7201,5077,7218}
1998/03/09 Part Numbers For Current Production Water Pump Groups{1361}
1998/03/09 Adjustable Mounting Arrangement And Flexible Coupling For Hydraulic Pump Available{5062}
1998/03/09 Use 126-0413 Spanner Wrench Assembly, 127-0899 Spring Compressor, And FT-2508 Spring Compressor To Disassemble And Assemble Transmission{3150,3150,0718}
1998/03/09 Use 125-9791 Seal Installer, 125-9792 Seal Resizer, And 125-9793 Seal Installer To Assemble Steering Cylinder Seals{4303}
1998/03/09 Use FT-2504 Brake Gauge For Inspecting Brake Disc Wear{0763,4255}
1998/03/09 Use FT-2512 Threaded Rod To Remove And Install Boom Section Wear Pads, FT-2513 Extended Hex Wrench To Disassemble And Assemble Underblock Pin{6460,6460,0745}
1998/03/09 Telehandler Axles And Final Drives{3260,4074}
1998/03/09 New Hardened Washer Improves Seat Suspension Service Life{7324}
1998/03/09 Use 134-5195 Adapter Cable For T-harness In Electronic Control Systems{1900,0781}