How to Install a Control Box Cover on a HiTorque Bench Mill
By Products for bench top machinists | LittleMachineShop.com | Published: 2026-10-22
Category: How-to Guides
Learn to install or replace the control box cover on your HiTorque or SIEG SX2.7 bench mill with these clear steps, including screw size tips and common mistakes.
Quick answer
To install a control box cover on your HiTorque or SIEG SX2.7 bench mill, align the cover over the control box, secure it with the original screws, and ensure the brushed metal finish faces outward for a clean look.
Why the control box cover matters
The control box cover protects the electronic components inside your mill's control box from dust, chips, and accidental contact. A damaged or missing cover can lead to short circuits or premature wear of the controls.
The cover is made by Sieg Industrial Group and features a brushed metal finish that matches the look of your machine. Keeping it properly installed maintains both the function and appearance of your mill.
Compatibility and screw size considerations
This cover is designed specifically for HiTorque bench mills and SIEG SX2.7 bench mills. If you have a different model, the mounting holes may not align, so double-check compatibility before purchasing.
The cover uses small machine screws to attach to the control box. The exact screw size is not specified by the manufacturer, so we recommend keeping the original screws when you remove the old cover. If you need replacements, take the old screw to a hardware store to match the thread pitch and length.
Installation steps
- Disconnect power: Unplug the mill or turn off the main power switch to avoid any electrical hazard while working near the control box. Double-check that the power is off before touching any electronic components.
- Remove the old cover: Use a screwdriver that matches the screw head (typically Phillips) to remove the screws holding the old cover. Keep the screws in a safe place, as you will reuse them. Don't force a screwdriver; use the correct size to avoid stripping the screw heads.
- Align the new cover: Position the new cover over the control box, aligning the screw holes. The brushed metal finish should face outward for a clean look. Ensure the cover sits flush and does not pinch any wires before inserting screws.
- Secure the cover: Insert the screws and tighten them evenly, but do not over-tighten. Snug is enough to hold the cover firmly without cracking the metal. If a screw feels loose, check the thread engagement; do not use a longer screw that could damage internal components.
- Test the controls: Reconnect power and test the control box functions (e.g., spindle speed, power light) to ensure everything works correctly. If any function fails, recheck the cover alignment and that no wires are displaced.
Product fact
- Cover, Control Box, HiTorque Bench Mill: This control box cover is designed for HiTorque bench mills and SIEG SX2.7 bench mills, with a brushed metal finish. It ensures a proper fit and a professional look while protecting the control box components from damage.
Cover, Control Box, HiTorque Bench Mill
