TM  10-3930-643-34 FRAME AND TOWING ATTACHMENTS MAINTENANCE. 10-2. Frame Hinge Pin and Frame Assembly. (Sheet 8 of 13) REMOVAL Do not remove both upper shafts at the same time. at a time, only. NOTE and  lower Do  one Repositioning of surrounding lines, cables or hoses may be necessary to accommodate use of equipment. 44. Using a bushing removal tool, a 7/16” socket,  socket  wrench  handle  and  a 7/16”  open  end  wrench,  remove  bushing (21). Install two side pieces of bushing removal tool in bushing (21) so the lips of the tool grasp the lower edge of the bushing (21). 45. Install the center piece of the bushing  removal  tool  over  the  shaft of  the  ports-power  and  between  the two side pieces of the bushing removal tool. 46. Install a nut to lock the assembly together  on  the  ports-power  shaft. Activate the ports-power and push out bearing (21). 47. Using a hammer and drift punch, remove bushing (22). 48. Remove two bushings (24) from left and right side of rear frame. Go to sheet 9 10-13

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