When installing , install the spring (P-4) to  as shown in the left figure, and then install  while pressing the spring (P-4) to the direction of the arrow in the left figure and confirming that the position of the spring (P-4) is placed as shown in the left figure. 
 Position of Mode Lever when installed Pin of  Pin of  Pin of 
Bottom View  
Top View Align  and  as shown. First groove on  First tooth on   When reassembling , meet the first groove on  to the first tooth on  as shown.