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.