Southbend SB1013 ユーザーズマニュアル

-72-

For Machines Mfg. Since 7/09

EVS Toolroom Lathes

 

Instead, take the time to carefully line 
up the two bores. You may file a slight 
chamfer on the end of the pin to make it 
easier to insert.

  With the pin completely seated in the bore 

and the head flush with the leadscrew 
shoulder, slide the shroud washer against 
the shoulder, then rotate the washer 180° 
until it covers the head of the shear pin, as 
shown in Figure 148.

  Insert a blow gun tip into the shear pin hole, 

blow out the hole with compressed air, and 
put a drop of oil in the hole.

  Insert the new shear pin into the bore, as 

shown in Figure 147.

 

Use the magnet to remove the shear pin 
head, then rotate the lathe spindle to line 
up the inner and outer bores, as shown in 
Figure 146. Next, use the magnet to remove 
the other half of the broken shear pin when 
it becomes visible.

  Using retaining ring pliers, return the 

retaining ring to its groove, and position 
the retaining ring ears over the shear pin 
head, as shown in Figure 149, to prevent 
the shear pin from falling out—if the shroud 
washer rotates into alignment with the pin 
access groove lines.

  Re-install the access covers.

— If the pin does not freely slide into the 

bore, DO NOT hammer on the pin or 
you may permanently damage the shear 
mechanism and bore, making it nearly 
impossible to remove and install a new 
shear pin later.