1989/06/26 Caterpillar


New Retainers And More Clutch Plates Used In Transmission Group{3060}

Usage:


416, 426 and 428 Backhoe Loaders

Description of Change: New retainers and two additional clutch plates are used in the transmission group on backhoe loaders. The new retainer is thinner and will allow the use of one more clutch plate in each of the clutch packs.

Formerly, the retainer functioned as both a retainer and a clutch plate.

Adaptable To: The new 6Y1254 Retainer and one additional 6T9194 Plate directly replace the former 7T3126 Retainer in each clutch pack. The new retainer and additional clutch plate are in effect with 416 (2-WD: 5PC3697, 4-WD: 5PC3704), 426 (2-WD: 7BC700, 4-WD: 7BC691) and 428 (2-WD: 6TC658, 4-WD: 6TC648).

When rebuilding the clutches on backhoe loaders, it will be important to count the number of plates to verify that the correct number are used with the particular retainer.

Caterpillar Information System:

1989/06/26 New Idler, Rim, And Hub Used{4159,3282,7206}
1989/06/26 Stronger Screened Modulation Orifices Used In Transmission Hydraulic Controls{3152}
1989/06/19 New Pistons Used With Two Keystone Compression Rings{1156,1205,1214,1215}
1989/06/19 New Seal Used In Auxiliary Water Pump Groups{1361}
1989/06/19 New Turbocharger Water Return Hose Assemblies Used In Radiator Groups{1380}
1989/06/19 Repair Kit And Lubricant Available For Windshield Wiper Motors{7305}
1989/06/19 New Cap for Hydraulic Tank{5056,5068}
1989/06/19 Provide Clearance For Screed End Gates{6640}
1989/06/19 6V6640 Gasket Maker Used In Place Of Gaskets In Front Housing Cover Group On Engine{1150,1151}
1989/06/19 Special Instruction, "Battery Charging Rate And Time Tables," Available On Oil Resistant Paper{0374,1401}
1989/06/19 Identification Of Asbestos-Free Material{0353,0112,0648}
1989/06/05 How To Check And Align Front Wheels{4201,4303}
1989/06/26 Bulkhead Nut Removed From Sideshift Lock Lines Group To Improve Sealing Of Hose{6509}
1989/06/26 Brace Plate Added To Reduce Vibration Of Coolant Bypass Tube{1380}
1989/06/26 Access Cover Kit Available For Rear Differential Cover{3258}
1989/06/26 Use Upper Plug To Check Oil Level In Pump Drive Gearbox{3108,6600}
1989/06/26 New Connector With An Orifice Added To Fuel Injection Lines Groups To Help Prevent Cavitation{1274}
1989/07/03 All Wheel Drive System Disabled For Shipping Purposes{7500}
1989/07/03 Air Conditioning Service Tooling{0757,0786,7320}
1989/07/03 Use Same Torque For All Sizes Of Threaded Crown Hydraulic Cylinders{5100,7562}
1989/07/03 New Hydrostatic Steering Valves Available To Improve Steering Performance{4307}
1989/07/03 New Latch Kit Available For Rear Differential Cover{1150}
1989/07/10 Serviceable Parts For Hydraulic Pumps{5070,5073}
1989/07/10 New Air Conditioning Duct Has Better Heat Resistance{7320}
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