Gripper Assembly for SP-20

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!

gripper pedal1gripper assy1

 

 

 

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Paul Moxon, Moderator
Admin
11 years ago

Let’s see a photo of the yoke that connects to the opener arm. It may be that it is projecting out too far. If so, remove the bolt that links the yoke to the opener arm and turn the yoke 180 or 360 degrees clockwise threading it closer to the operator’s side effectively making the horizontal rod shorter.

The shaft has simply slipped out of its bearing on inside of the cylinder. There should also be a spring on that end. Also, you’ll notice that the gripper lever is off center to the shaft. This is normal on SPs.

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