Important Safety Precautions:

**CAUTION:** Ensure the machine is OFF, unplugged, and fully discharged before attempting any maintenance to avoid electrical hazards.

Make sure to follow any additional safety guidelines provided in the manual while performing this maintenance task.

If elevating the table saw blade is difficult or it gets stuck, there may be a few causes for this issue. Here are some steps to diagnose and fix the problem:

1. Access the Manual: 

   • Visit the link to the latest manual for your model of saw to get detailed instructions:
     • 2HP HW110LC Instruction Manual Revision B
     • 3HP HW110TC Instruction Manual Revision A
       

2. Check for debris: 

   • Sawdust and debris can accumulate under the blade elevation mechanism and cause it to become difficult to raise or lower the blade. Use a brush or vacuum to clean out any debris.

3. Lubricate the mechanism: 

   • Apply lubricant to the blade elevation shaft threading. Use a dry lubricant like graphite powder, which won't attract sawdust and debris.

4. Check for rust: 

   • Rust can cause the blade elevation mechanism to become difficult to move. Use a rust remover to clean off any rust on the mechanism, then apply a protective coating to prevent further rusting.

5. Check for misalignment: 

   • If the blade elevation mechanism is misaligned, it can cause the blade to bind. Inspect and use a straight edge to check for any misalignment and adjust as necessary.

6. Check for worn parts: 

   • If the mechanism is worn, it may need to be replaced. Check for any worn or damaged parts and replace as necessary.

7. Check for any binding in elevation shaft: 

   • The elevation shaft (#192) is secured and held in place with a nylon insert lock nut (#189) which could be causing it to bind. Try loosening the nut to see if this allows clearance to raise/lower the blade. If loosening the nut resolves the issue, applying blue loctite to the threading to keep the nut at a position where there is enough space to prevent it from binding up can help prevent the nut from vibrating tighter during use and binding up in the future.
8. Check the riving knife spreader bracket arm for binding:
   •  If loosening the elevation shaft nut does not improve the ability to raise and lower the arbor, it could be that the spreader bracket is too tight and causing the assembly to bind as it tries to self adjust when raising and lowering the arbor. Here is a link to instructions for adjusting the riving knife spreader bracket to eliminate both slop or binding where the bracket seats around the arbor.  
   • HW110LC/TC Table Saws: Riving Knife Spreader Bracket Adjustment