ADAPTER 7D5861 - Caterpillar

Illustration 1 g02434003Inspect the crankshaft vibration damper for oil leaks.
Remove the damper. Refer to the "Disassembly and Assembly"UENR3283 for more information on removing and installing the vibration damper.
Remove side plate (3).
Separate the inner member of the damper (1) from the outer member (2).Note: Do not disassemble the damper spring assembly.
Clean all parts of the damper. Pay special attention to the oil supply and venting holes.
Replace all accessible rubber seal rings.
Replace all disc springs from bolts that have been removed.
Check for permissible wear of the Y-seal. Replace the seals whenever the damper is disassembled, or there is evidence of leakage. Permissible wear on the sealing surface of the Y-seals on each side of the inner star is 0.2 mm (0.007 inch).
Assemble inner member (1) and outer member (2).
Illustration 2 g02428139
Check wear of the spring blades. Use of a measuring wedge is required. If a measuring wedge is not supplied, then a wedge is to be fabricated. Refer to illustration 2.
Illustration 3 g02428199
(1) Spring packs
(2) Measuring wedge
(3) Inner star
Measure for wear. Refer to illustration 3
Measure every fourth spring pack.
Place the measuring wedge between the inner ends of the spring blades and the wedge is touching the bottom of the groove. The measuring wedge end face and groove bottom must be parallel.
Press by hand or use a soft face hammer to force the wedge along the inner star groove. The spring tips should rest on both groove faces.The further the wedge can be pressed between the spring blades, the greater the wear on the inner star groove and spring blades. If the wedge can be inserted to the "Not Go" section of the measuring wedge, replace the damper.