For Machines Mfg. Since 7/09
EVS Toolroom Lathes
-71-
S E R V I C E
Leadscrew Shear Pin
Replacement
9mm
7mm
5.8mm
0.5mm
0.2mm
0.2mm
3mm
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
.
3.
Rotate the shroud washer so the cutout lines
up with the shear pin head, as shown in
Figure 144
.
Figure 145. Shear pin access.
Rear
Position
Gap
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.
Figure 144. Shroud washer/pin alignment.
Shear Pin
Head
Shroud Washer
Cutout
Figure 143. Feed access covers removed.
Feed Access Cover
