Alpha HW110S Table Saw: Troubleshooting Elevation Shaft Stuck or Difficult to Move

Created by Gabriel Izzo, Modified on Tue, 26 May at 6:49 PM by Gabriel Izzo

Alpha HW110S Table Saw · Troubleshooting

Elevation Shaft Stuck or Difficult to Move

Applicable Models

Alpha HW110S Series Table Saws (4HP)

Overview

If raising or lowering the blade on the HW110S is difficult or the elevation mechanism gets stuck, there are several possible causes ranging from debris and lack of lubrication to misalignment or component failure. Work through the steps below in order to diagnose and resolve the issue.

⚠ Table Saw Safety

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

Follow all additional safety guidelines provided in the instruction manual for your specific model while performing this maintenance task.

Manual Reference

PDF

HW110S Instruction Manual — Revision C

harveyedu.com · Detailed maintenance and adjustment procedures

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Diagnostic & Repair Steps

Work through in order — stop when the issue is resolved

Clear Debris from the Elevation Mechanism

Sawdust and debris can accumulate under the blade elevation mechanism and prevent smooth movement. Use a brush or vacuum to thoroughly clean out any buildup around the trunnion and elevation assembly.

Lubricate the Trunnion Elevation Gears

Apply general purpose grease to the trunnion elevation gears. Cycle the blade up and down several times after applying to distribute the grease evenly throughout the mechanism.

Inspect for Rust

Rust on the elevation mechanism can cause binding. If rust is present, use a rust remover to clean the affected surfaces, then apply a protective coating or light oil to prevent further corrosion.

Check for Misalignment

Misalignment within the blade elevation mechanism can cause binding. Use a straight edge to inspect the relevant components for any visible misalignment and adjust as necessary.

Inspect for Worn or Damaged Parts

Visually inspect the elevation mechanism for any worn, cracked, or damaged components. Worn parts may need to be replaced to restore smooth operation.

Check Elevation Shaft, Vertical Lift Bolt & Air Spring

Elevation Shaft (#214) & Vertical Lift Bolt (#216)

The elevation shaft (#214) may be binding at the point where it meets the vertical lift bolt (#216). Open the cabinet and inspect this junction for any signs of binding, burrs, or misalignment.

Air Spring (#296) — Isolation Test

Remove the air spring (#296) from the assembly.

With the air spring removed, manually raise and lower the trunnion through its full range of motion.

Full range of motion

Air spring (#296) has failed and requires replacement.

Still binding

Issue is not the air spring — investigate the shaft and lift bolt junction further.

Elevation Shaft (#214), Vertical Lift Bolt (#216) & Air Spring (#296) — Component Reference

HW110S elevation shaft, vertical lift bolt and air spring component diagram

If the issue persists after working through all steps, please contact our support team.