New Steel Pipe Assembly Used For Supplemental Steering System {4304}
Usage:
D250B, D300B Trucks
Description of Change: A new steel pipe assembly is used to connect the supplemental steering pump to the supplemental steering valve. The former pipe had a flushing point which could fail under stress. There is no flushing point on the new pipe assembly. The flushing point is now on the supplemental steering valve.
Adaptable To: The new 7U1980 Pipe Assembly is a direct replacement for the former 6U5112 Pipe Assembly.
Caterpillar Information System:
1988/01/25 Larger Diameter Bolts Used In Lower Transmission Mountings {3000}
1988/01/25 New Spring For Door Latch {7308}
1988/01/25 New Seal Ring Used In Transmission Planetary Groups {3155}
1988/01/25 Stronger Detent Cam Pin Arrangement Used In Selector And Pressure Control Valve Group Of Transmission Hydraulic Controls {3152,3158}
1988/01/25 New Microfiche Shows Part Numbers And Locations Of Decals And Stripes {0374,7557}
1988/01/25 New Worldwide Identification Code Markings Used On Track Link Assemblies For Track-Type Tractors And Loaders {0336,4169,4171}
1988/01/25 New Undercarriage Reconditioning Bulletin-Sealed And Lubricated Track Servicing Procedure For Non-Restrained Track {4150,0374}
1988/01/25 New Undercarriage Reconditioning Bulletin, "Guideline For Reusable Track Parts" {0374,4170}
1988/01/25 Suction Screen Added Inside Sump Fuel Tank {1273,1274}
1988/01/25 Improved Radiator Core Assemblies Used In Folded Core Radiators {1353}
1988/01/04 Die Cast Flywheel Housing Has Less Weight{1157}
1988/01/04 Shorter Vee Belts Will Increase Clearance Between Alternator And Engine Side Panel{1357}
1988/01/25 New Brake Seal Kit Is Designed For Severe Brake Applications {4256}
1988/01/25 Recommended Wheel Bearing Adjustment Intervals {4208}
1988/01/25 Stronger Clutch Piston And Longer Retraction Spring Guide Pins Used In Transmission Planetary Groups {3170,3155,3150}
1988/01/25 Final Drive Bearing Adjustment Tools Available For First Reduction Planetary Gear {0727}
1988/01/25 Several New Tools Available To Help Service 785 And 789 Trucks {0601,0646,0722,0770}
1988/01/25 8T5314 Socket Adapter Available To Correctly Install Alternator Pulley Nut {0601}
1988/01/25 New Engine Oil Coolers Have Rubber End Sheets {1378}
1988/02/01 New 1U7646 Coupler Available To Connect 1 "-12 Threaded Studs{0700}
1988/02/01 Replacement Gaskets Available For "V-E" Electrical Connectors{7553}
1988/02/01 New Seal Used In Power Control Box{5201}
1988/02/01 New Pin In Backhoe Bucket Linkage Group Has Lubrication Fittings; New Link Assemblies In Front Bucket Linkage Group Have Additional Lubrication Fitting{6513}
1988/02/01 Hydraulic Pump Seal Kits Available{5061}