The foot pedal/gripper assembly on my recently acquired SP 20 is not functioning properly. The foot pedal seems to engage the gripper mechanism when manipulated by hand, but does not lower and return to its position as it should. Left to its own devices, it sits on the floor (see pic). Also, the rear assembly does not look right. See pic. The gripper lever is supposed to rest on the end of the crank roller shaft (right?), as shown in the manual. I am unable to readjust it to do this. Additionally, it looks as though this shaft is protruding too far for the gripper lever to rest where it is supposed to. Should I try to force the crank roller shaft back in toward the direction of the cabinet (which doesn’t seem like a good thing to do)? If so, how would I go about this. Any other suggestions are appreciated. Thanks!