Hitachi NR90GC Service Manual - Page 70

(3) Disassembly and reassembly of hook and the related parts (Fig. 60) [Tools required] Roll pin puller (4 mm (0.157")) Flat-blade screwdriver (a) Disassembly Remove the Roll Pin D3 x 14 [87]. Then the Hook [88], Washer (B) [89] and Spring D12 [90] can be removed from the Bracket [91]. Roll Pin D3 x 14 [87] Washer (B) [89] Spring D12 [90] Hook [88] Bracket [91] Fig. 60 (b) Reassembly Mount the Hook [88], Washer (B) [89] and Spring D12 [90] to the Bracket [91]. Drive the Roll Pin D3 x 14 [87] into the Hook [88] in the direction as shown in Fig. 60. It becomes easy to reassemble if the clearance between the Bracket [91] and Washer (B) [89] is widened with a flat-blade screwdriver beforehand. Note that the cross groove of the Bracket [91] must be aligned with the Hook [88] properly. Perform reassembly in the proper direction as shown in Fig. 61. After reassembly, rotate the Hook [88] and check that the Roll Pin D3 x 14 [87] does not protrude from the Bracket [91] (Fig. 62). --- 67 ---