For Machines Mfg. Since 7/09

S E R V I C E

EVS Toolroom Lathes

Leadscrew Shear Pin

Replacement

 

9mm

 

7mm

5.8mm

3mm

 

0.5mm

0.2mm

0.2mm

NOTE: Shear Pin Material = S45C (SAE 1045)

Figure 142. Shear pin specifications.

Tools Needed:

Qty

Phillips Screwdriver #2

1

External Retaining Ring Pliers #1

1

Magnet

1

Safety Glasses

1

To replace the shear pin:

1.DISCONNECT LATHE FROM POWER!

2.Remove the front and side feed access covers, as shown in Figure 143.

Feed Access Cover

Figure 143. Feed access covers removed.

3.Rotate the shroud washer so the cutout lines up with the shear pin head, as shown in Figure 144.

Shear Pin

Shroud Washer

Head

 

Cutout

Figure 144. Shroud washer/pin alignment.

4.Put on safety glasses.

5.Remove the retaining ring from its groove and place it in the rear-most position away from the shroud washer.

6.Move the shroud washer away from the shear pin (to the rear position), as shown in Figure 145, so there is enough of a gap to remove the shear pin.

Rear

Position

Gap

Figure 145. Shear pin access.

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Southbend sb1015f specifications Leadscrew Shear Pin Replacement, To replace the shear pin