Also known as the "Crankshaft Arm" (013-1003-06)
The Crankshaft Arm has a threaded through-hole to accept the "Socket Head Cap Screw" (000-0166-32) while the other end has a partial drill hole to accept the pointed end of the "Socket Cup Set Screw" (000-0487-63)
The Socket Head Cap Screw goes through the Nylon Pivot and then the Hex Full Nut is screwed on near to the Nylon Pivot. The Nylon Pivot must be able to move freely but be captured between the head of the screw and the Hex Nut. Then Screw into the Crankshaft Arm and use the Hex Nut to lock the screw in place.
To replace the lever assembly on a machine will require the removal of the Grinding Wheel, The Wheel Guard Cover, and the Wheel Guard Plate so that you can gain access to the inside of the casting.
After removing the items shown you should be able to slide the grinding motor spindle assembly all the way to the right while facing the machine. You should then have a clear view and hand access to the Lever Assembly.
The image below shows the base casting with everything removed. You will see the hole where the Crankshaft Assembly slides into the casting. From the backside, you will see an access hole so that a long 5/16" Allen T-Wrench can be inserted to tighten or loosen the above-mentioned Socket Cup Set Screw.
This is the approximate position you will need to get the Crankshaft Assembly to in order to insert or remove the Crankshaft Arm.
Notice the Crankshaft Assembly has been pulled out about 2 inches. To accomplish this you must first use a 1/8" long Allen T-Wrench to back off the set screw that holds the Crankshaft Assembly in place. Insert the wrench into the hole located above as shown in the image on the left.
If you look at the very first image on page #1 of this document you will see the groove in the bearings in the middle of the shaft that this set screw must go into when you reassemble the Crankshaft Assembly. It will be necessary to move the shaft in and/or out until you can feel the set screw fall into this groove.
A photo of the access hole in the back of the casting that allows access to the Crankshaft Assembly and Crankshaft Arm Set Screw.
The lower image shows the Spindle Casting in place and slid as far right as can be done to allow the Crankshaft Arm to slip past. The image does not have the Socket Head Cap Screw all the way seated. There should not be that much play for the Nylon Pivot.
A generous amount of White Lithium Bearing Grease applied to the Nylon Pivot will help keep it from wearing and provide many years of use.
This can be tricky to get done. You can see the slot in the Spindle Slide casting where the Nylon Pivot must slip into. And you are blindly moving the casting and the Crankshaft Assembly attempting to feel when you have the Nylon pivot into this slot.
One way to help you is to look at the back corner of the slide and base casting. When they are flush like the image below you are very near where you need to be with the slide for the Nylon Pivot to be in the slot at the rightmost travel point.
You will know you have the Nylon pivot in the slot when you can move the slide in both directions. If you miss the slot the Spindle Motor Slide will move in one direction only.
After getting the Nylon Pivot into the Slide Slot you can reattach the Wheel Guard Plate, the Grinding Wheel, and the Wheel Guard Cover.