¶ Lifting Lead Screw Fails to Raise the Mirror Mount
This page explains common reasons why the lifting lead screw fails to raise the mirror mount and provides practical inspection and maintenance steps to restore normal operation. It addresses abnormal noise, stalling during upward movement, and control panel error prompts related to the lifting mechanism.
¶ Problem Description
Initially, there may be a slight noise when the mirror mount moves toward the RF tube position. This noise increases over time with continued use.
The control panel displays a No Extend Device error prompt.
The mirror lifting lead screw moves downward normally (switching from RF to Glass tube), but stutters or stalls when moving upward (switching from Glass to RF tube). Currently, the mirror mount requires a manual upward push to successfully rise.
¶ Cause
- The mirror lifting lead screw has not been cleaned or lubricated regularly.
- Connections related to the lifting mechanism are loose or disconnected.
- The lifting lead screw is slightly bent or misaligned.
¶ Solution
¶ Cleaning and Maintenance
Use a cleaning agent, compressed air and high-quality lubricant to clean and maintain the lifting lead screw assembly.
After maintenance, try switching the laser source to see if normal operation is restored.
¶ Inspect Wiring
Refer to the wiring diagram below to check all related cables for looseness, disconnection, or physical damage. Ensure all plugs are seated firmly.
¶ Check Lead Screw Verticality and Alignment
A bent lead screw will cause resistance at specific points in the travel.
With the power turned off, manually rotate the lifting lead screw to move the mirror mount up and down. Feel for any significant resistance as the mount passes through different positions. If resistance is felt at a specific height, the screw may be bent or out of alignment.
Important Reminder:
If these steps do not resolve the issue, please submit a support ticket. A technician will then be able to conduct a more in-depth diagnosis.