4 - 46ENGPRIMARY AND SECONDARY SHEAVESREMOVING THE PRIMARY ANDSECONDARY SHEAVES1.Loosen: Nut (secondary sheave) 1 Nut (primary sheave) 2NOTE: Use the sheave holder 3 to hold the primarysheave. First, loosen the nut (secondary sheave) 2,then loosen the nut (primary sheave) 1.Sheave holder:P/N. YS-01880-A, 90890-01701DISASSEMBLING THE SECONDARYSHEAVE1.Remove: Nut 1*****************************************************Removing steps: Attach the sheave fixed block 2, locknutwrench 3 and sheave spring compressor 4to the secondary sheave assembly. Place the sheave fixed block in a vise andsecure it. Tighten the sheave spring compressor nut 5and compress the spring. Loosen the nut 1 with the locknut wrench 3. Remove the nut 1. Remove the sheave spring compressor andlocknut wrench.*****************************************************Sheave fixed block:P/N. YM-04135, 90890-04135Locknut wrench:P/N. YM-01348, 90890-01348Sheave spring compressor:P/N. YM-04134, 90890-04134