1989/12/25 Caterpillar


New Service Repair Spring Available For Winch Clutch And Brake Control Group{5419,5173}

Usage:


561B, 561C, 561D, 571A, 571F, 571G, 572E, 572F, 572G, 583C, 583E, 583H, 583K, 594, 594H Pipelayers

Description of Change: A new service repair spring is used in the boom line brake lever and the hook line brake lever of the winch clutch and brake control groups for the models listed above. The design of the new spring increases the life expectancy of the spring significantly. Permanent deformation of the former spring made frequent replacement of it necessary.

Since the free length of the new spring is shorter, it may be necessary to adjust the length of the rod end of each brake lever to prevent the spring from disengaging from the dowel and falling out. Adjust the length of each rod end until Dimension A is approximately 40.6 mm (1.6").

Adaptable To: The new 6Y7147 Spring is a direct replacement for the former 1F6116 Spring.


Illustration 1. Typical winch clutch and brake control group.


Illustration 2. Typical lever and latch assemblies.

Caterpillar Information System:

1989/12/18 Blade Control Lever Can Be Repositioned To Improve Operator Comfort And Linkage Life{5051,5063,5600}
1989/12/18 New Seal Kit Used In Drag Conveyors{6630,3261,4184}
1989/12/18 Procedure For Testing Electrical Displacement Control On Hydraulic System Ground Drive Pump{5070,5700,1400}
1989/12/18 New Electronic Height Sensor For Suspension Control{7215}
1989/12/18 New Wiper Motor Group, Arm And Shaft Assembly Used In Windshield Wiper Group{7305}
1989/12/18 Stronger No. 4 Clutch Housing Used In Transmission{3169}
1989/12/18 Field Service Update Kit Now Available For Suspension Seat{7312,7307,7324}
1989/12/18 Conversion Kits Are Available To Change Speeds Of Winches{5163,5165}
1989/12/11 Modification Of 2W1054 Screen Assembly For Use During Dynamometer Testing{1307}
1989/12/11 New Camshaft And Lifter Kits Available For Slipper Type Cam Followers (Valve Lifters){1209,1210}
1989/12/11 Additional Information For Checking Valve Camshaft Timing{1105,1110,1112,1121}
1989/12/11 Water Spray System Available For Lower Conveyor{5612}
1989/12/25 New Assembly Method For Track Links Makes It Easier To Install And Adjust{4169,4170}
1989/12/25 Electrical Connection Studs Are Too Long On Fuel Level Sensor{7481,1400}
1989/12/25 New Thrust Discs Used In Transmission And Transfer Drive Groups{3060,3260}
1989/12/25 Components Of 9T1318 Steering Metering Pump Group Are Available For Parts Service{4312}
1989/12/25 Gaiter (Protector) Available For "Over-Hitch" Hoses{7167,5057}
1989/12/25 Alternative Air Pressure Test Point{1804}
1989/12/25 New Shaft Assembly Available For Cutter Drum{6601}
1989/12/25 Do Not Use 1U5555 Hydraulic Hose Press Pump Group In 230 Volt Circuits{0616,5057}
1989/12/25 New Cooling System Cleaner Now Available For All Engines{1350,0680,1352,1353}
1989/12/25 New Fuel Return Valve Prevents Siphoning{1253,1274}
1990/01/15 Information About Front Tire Wear And Drive Train Noise {4203,4231,4233,3000}
1990/01/15 New Governor Control Cable Resists High Temperature And Is More Appropriate For Some Applications {1265}
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