For Machines Mfg. Since 7/09 | S E R V I C E | EVS Toolroom Lathes |
V-Belts
Tools Needed: | Qty |
Phillips Screwdriver #2 | 1 |
Open End Wrench 24mm | 1 |
Brake & Switch
As the brake lining wears, the foot pedal develops more travel. If the brake band is not adjusted to compensate for normal wear, the limit switch will still turn the lathe off, but the spindle will not stop as quickly. It is especially important that the brake is kept properly adjusted so you can quickly stop the spindle in an emergency.
To adjust the V-belts:
1.DISCONNECT LATHE FROM POWER!
2.Remove the cover shown in Figure 136.
Motor Cover
Figure 136. Location of motor cover.
3.Turn the hex nuts on the motor mount bolts shown in Figure 137 to move the motor mount plate up or down and adjust the
Motor Mount Bolts
Pulley
Deflection
Pulley 
Figure 137. V-belt adjustment.
4.Firmly tighten the hex nuts (loosened in the previous step) against the motor mount plate to prevent it from moving out of adjustment during operation, then
Tools Needed: | Qty |
Phillips Screwdriver #2 | ........................................ 1 |
Hex Wrench 6mm | 1 |
To adjust the brake and brake switch:
1.DISCONNECT LATHE FROM POWER!
2.Put on a respirator and eye protection to protect yourself from hazardous brake dust.
3.Remove the motor cover shown in Figure 137.
4.Measure the remaining brake band lining at the thinnest point, which is usually at the 8 o'clock position, as shown in Figure 138.
3mm |
Figure 138. Minimum brake band lining thickness.
When the brake band is new, the lining is approximately 6mm thick. If the lining thickness wears to 3mm or less, the brake band must be replaced; otherwise, the rivets that secure the lining to the band will soon grind into the brake hub. If the hub becomes damaged, it must be replaced, which will substantially increase the cost of repair, compared to just replacing the brake band.
