New Hydraulic Pump Now Used And Service Parts Are Available {5070}
Usage:
D250E (5TN),
D300E (7FN) Articulated Trucks
Description of Change: The main hydraulic pump has been replaced by a new pump to increase service life.
Adaptable To: The 123-2985 Piston Pump Group has been canceled and replaced by 132-7098 Piston Pump Group. The 132-7098 Piston Pump Group is effective with D250E (5TN626) and D300E (7FN347) Articulated Trucks. The 132-7098 Piston Pump Group is serviced with the parts listed in Chart 1. The 123-2985 Piston Pump Group is no longer serviced as a group, the serviced parts are listed in Chart 2.
Illustration of Main Hydraulic Pump
Caterpillar Information System:
1996/08/12 Wheel Bearing Check And Adjustment Maintenance Interval {4208}
1996/08/12 New Bracket For The Engine RPM Control Cable {1265}
1996/08/12 New Steering Flow Switch Assembly Prevents Open Contacts {7492}
1996/08/12 Improved Steering Flow Switch Assembly Prevents Open Contacts {7492}
1996/08/12 Fuel Priming Pump Group Can Be Modified To Provide Better Access To The Pump Assembly {1258}
1996/08/12 S·O·S Valve Locations For The H-Series Motor Graders {7576}
1996/08/12 Improved Machine Monitor (Lightbar) Control Group Used {7402,7451}
1996/07/29 Test Procedures For 3306B Machine Engines With A "Dog Leg" Torque Curve{1000}
1996/07/29 Drain Plate Is Standard On 3508 EUI Engines Used In D11N Track-Type Tractors{1383}
1996/07/29 New Oil Jet Tube Assemblies Replace Oil Cooling Jet Assemblies{1331}
1996/07/29 Improvement Of Uploading Process For VIMS{7601}
1996/07/29 Decals And Reference Charts For Correct Tire Pressures{4203}
1996/08/12 Procedure For Steering Stop Setting {7050}
1996/08/12 New Priority Valve Spool Increases Steering System Flow {4306,4320}
1996/08/12 Longer Battery Cable Improves Service Life of Battery Posts {1402}
1996/08/12 Individual Components Of The Rolling Hoses Are Available as Separate Service Parts {5057}
1996/08/12 Load Capacity Chart Part Numbers Are Now Available For Telehandlers Under ANSI Regulation {6400,7000}
1996/08/12 New Maintenance Schedule Reduces Cost Of Servicing {7500}
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 Grooved Piston Assemblies Available For Piston Pump Rotating Groups {5070}
1996/08/12 New Basic Exhaust Bypass Group (Wastegate Valve) Used In Exhaust Bypass Group {1057}
1996/08/12 New High Efficiency Secondary Fuel Filter Assembly Improves Injector Life On 3500 Engines With EUI Injectors {1261}
1996/08/12 Be Sure To Use New 129-1939 Grease When Rebuilding Water Pump Groups {1361,0645}
1996/08/12 New Connector Assembly In Water Lines Group {1380}