My schematic of JR3000V Recip Saw is slightly different. I have a piece I believe is a spring pin #63 on my schematic and it was sheered leaving the Blade Clamp broken loose, your schematic does not show this part, but it is in your parts list. Your schematic shows part #70 Hex socket head bolt which is not in my schematic nor did I have one in my saw. It appears in your diagram that perhaps the Hex Socket Head Bolt is what secures the Blade Clamp to #8 Slider where as my schematic shows # 63 Spring Pin is what secures the Blade Clamp to the slider. This is the second time the Spring Pin in my saw has sheered the last time I took it in to repair, but it seems to be a pretty straight forward repair. Is the Hex Socket Head Bolt an up dated part in a later release of this same model saw (My saw is quite old) and if so do I need to replace Blade Clamp as it appears that the Hex Socket Head Bolt is threaded and my Blade Clamp has an unthreaded hole in which the Spring Pin is pressed in to secure the Blade Clamp. I can repair with a new Spring Pin, but it has sheered twice and appears to be a weak link. Also a third part #73 called a Pin is on my schematic and yours as well was pulled loose when the Spring Pin sheered. Should I replace this with a new one (I pressed it back into the Slider and it appears snug)?