Improved Tachometer Assembly Now Used Which Eliminates The Problem Of Moisture Entering The Flat Bezel {7462}
Usage:
416B (8ZK3890-UP),
426B (6KL416-UP),
436B (7FL317-UP),
446B (5BL676-UP) Backhoe Loaders
Description of Change: The tachometer assembly has been improved to eliminate the problem of moisture entering the flat bezel causing failure of the tachometer. The improved tachometer assembly has a raised bezel.
Adaptable To: The improved 120-8970 Tachometer Assembly is effective with 416B (8ZK6772), 426B (6KL1458), 436B (7FL734), 446B (5BL825) Backhoe Loaders and is adaptable to 416B (8ZK3890-6771), 426B (6KL416-1457), 436B (7FL317-733) and 446B (5BL676-824) Backhoe Loaders.
Illustration 1. 120-8970 Tachometer Assembly With Flat Bezel. Do Not Use.
Illustration 2. Improved 120-8970 Tachometer Assembly With Raised Bezel. Use This One.
Caterpillar Information System:
1996/08/19 Improved Test Procedure For Hydraulic Pump Torque Limiter {5070}
1996/08/19 Cab Improvements Reduce Glass Fracture and Improve Sealing {7310,7323,7340}
1996/08/12 New Connector Assembly In Water Lines Group {1380}
1996/08/12 Be Sure To Use New 129-1939 Grease When Rebuilding Water Pump Groups {1361,0645}
1996/08/12 New High Efficiency Secondary Fuel Filter Assembly Improves Injector Life On 3500 Engines With EUI Injectors {1261}
1996/08/12 New Basic Exhaust Bypass Group (Wastegate Valve) Used In Exhaust Bypass Group {1057}
1996/08/12 New Grooved Piston Assemblies Available For Piston Pump Rotating Groups {5070}
1996/08/12 Smaller Diameter O-Ring Seal Used On Head For Threaded Gland Cylinder Groups {4303,5101,5102,5104,5452,7562}
1996/08/12 New Maintenance Schedule Reduces Cost Of Servicing {7500}
1996/08/12 Load Capacity Chart Part Numbers Are Now Available For Telehandlers Under ANSI Regulation {6400,7000}
1996/08/12 Individual Components Of The Rolling Hoses Are Available as Separate Service Parts {5057}
1996/08/12 Longer Battery Cable Improves Service Life of Battery Posts {1402}
1996/08/19 Replacing The Tee Gasket In Split Oil Pan Groups With A Flexible Gasket Maker {1300}
1996/08/19 New Adapter Used In Oil Filter Group To Provide Increased Parts Commonality {1318}
1996/08/19 New Seal Retainers And Backing Plate Used To Reduce Oil Leaks And Provide An Increased Face Load On Duo-Cone Seals {4251,7561}
1996/08/19 New Orifice Plate To The Rear Brake Cooling Return Oil Line Significantly Reduces Hub Wear {4257}
1996/08/19 New Seal Used In Metering Pump Group To Improve Service Life {4312}
1996/08/19 Improvement For 117-7553 (Fuse Panel) Breaker Group Access {1417}
1996/08/19 New Parts Service Bearing For The 6Y-5893 and 6Y-5965 Basic Torque Converter Groups Gives Longer Service Life {3101,3134}
1996/08/19 New Master Cylinder Group Reduces Brake Pedal Effort {4258}
1996/08/19 Governor Control Cable Improved {1265}
1996/08/19 Procedure For Setting Rear Steering Position Sensor {4005}
1996/08/19 Service Parts Available For Attachment Coupler Cylinder Lock Valve {5133}
1996/08/19 New Guard Reduces The Amount Of Dust And Debris Drawn Into The Engine Compartment From The Ground {7150,7153}