For Machines Mfg. Since 7/09 | S E R V I C E | Model SB1016/SB1036 |
Leadscrew Shear Pin Replacement
If the shear pin has broken, do not improvise by inserting a roll pin, cotter pin, steel dowel, or nail. Should the pin need to shear again, catastrophic gearbox damage may result. Order extras or make your own set of shear pins using the specifications shown in Figure 152.
| 10.54mm |
|
| 8.75mm |
|
5.8mm |
| 3.74mm |
| 0.5mm |
|
0.2mm | 0.2mm |
|
NOTE: Shear Pin Material = S45C (SAE 1045) | ||
Figure 152. Shear pin specifications. |
| |
Tools Needed: |
| Qty |
Phillips Screwdriver #2 | 1 | |
External Retaining Ring Pliers 90° #2 | 1 | |
Magnet | 1 | |
Safety Glasses | 1 | |
To replace the shear pin:
1. DISCONNECT LATHE FROM POWER!
2. Clean shear pin area shown in Figure 153 with mineral spirits, then dry with a rag.
3.Rotate the shroud washer so the cutout in the washer aligns with the shear pin head, as shown in Figure 154.
Shroud Washer
Shear Pin
Head
Cutout
Figure 154. Shroud washer/pin alignment.
4.Put on safety glasses.
5.Slide the retaining ring away from the shroud washer so it rests against the spring- loaded sleeve as shown in Figure 155.
Retaining Ring Against
Spring Loaded Sleeve
Gap
Shear Pin
Figure 153. Shear pin location.
Figure 155. Shear pin access.
6.Slide the shroud washer against the retaining ring, as shown in Figure 155. There must be enough of a gap to remove the shear pin.
