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Proper machinery alignment is one of the most important responsibilities of a millwright. When pumps, motors, compressors, and gearboxes are installed, they must be aligned within tight tolerances to prevent vibration, premature bearing wear, and coupling failure.
Millwrights use a variety of alignment tools to check shaft position, verify machine level, correct soft foot conditions, and make precise adjustments during installation and maintenance work.
Whether using traditional dial indicator methods or modern laser alignment systems, accurate alignment helps ensure machinery operates smoothly and reliably in demanding industrial environments.
Common millwright alignment tasks include:
• Shaft alignment
• Checking runout
• Setting soft foot
• Coupling alignment
• Leveling machine bases
• Measuring shaft movement and clearances
Below are some of the most commonly used tools millwrights rely on when performing machinery alignment in the field.

A precision straight edge is commonly used by millwrights to check machine base flatness, verify surface alignment, and inspect components for irregularities before final installation.
When setting pumps, motors, or gearboxes, a straight edge helps ensure mounting surfaces and machine bases are properly aligned before precision measurements are taken.
Starrett straight edges are known for their high accuracy and durable construction, making them a reliable tool for machinery installation, alignment work, and general maintenance tasks in industrial environments.

Slotted Alignment Shim Kit
Slotted shim kits are commonly used by millwrights when installing and aligning pumps, motors, gearboxes, and other rotating equipment. Shims are placed under machine feet to adjust the height of equipment and bring shafts into proper alignment.
The slotted design allows shims to be installed or removed without completely loosening or removing the mounting bolts, making adjustments faster during alignment work. Shim kits typically include multiple thicknesses so millwrights can make precise height corrections when leveling machines or correcting soft foot conditions.
Slotted shim kits are widely used in industrial maintenance and installation work to ensure machinery is properly aligned and operating within required tolerances.

The Starrett Little Giant Jack Screw Set is a precision positioning tool used when installing or aligning machinery. Jack screws allow millwrights to lift, support, or make fine adjustments to components during setup and alignment work.
These tools are commonly used in machine shops and industrial maintenance when small equipment or parts must be positioned accurately before final bolting or shimming. The adjustable screw design allows controlled movement and stable support during installation work.

Indexing pry bars are commonly used by millwrights when positioning and aligning machinery during installation and maintenance work. These tools provide the leverage needed to carefully move motors, pumps, gearboxes, and other equipment while making alignment adjustments.
The indexing head allows the pry bar to be locked at multiple angles, making it easier to apply force in tight spaces around machine bases and anchor bolts. This helps millwrights make controlled movements when bringing rotating equipment into proper alignment.
Pry bars like these are often used when adjusting machinery during shaft alignment, correcting soft foot conditions, or making final positioning adjustments before tightening mounting bolts.

The Starrett Shaft Alignment Clamp Set is a precision tool used by millwrights to measure and correct shaft alignment between coupled machines. The clamp mounts directly to the coupling or shaft and holds dial indicators in position so alignment readings can be taken as the shafts are rotated.
This setup allows millwrights to check offset and angular misalignment between pumps, motors, gearboxes, and other rotating equipment. Accurate alignment helps prevent vibration, premature bearing wear, and coupling failure during operation.
Clamp-style alignment fixtures like this are commonly used during machinery installation, maintenance shutdowns, and equipment rebuilds where precise shaft alignment measurements are required.

Laser shaft alignment systems are widely used by millwrights to quickly and accurately align rotating machinery such as pumps, motors, gearboxes, and compressors. These tools use laser transmitters and sensors to measure shaft position and calculate alignment corrections in real time.
Compared to traditional dial indicator methods, laser alignment tools allow millwrights to perform alignment work faster while achieving extremely precise results. The system guides the user through the alignment process and displays the exact adjustments needed to bring machinery within proper tolerances.
Laser alignment systems are commonly used during equipment installation, maintenance shutdowns, and troubleshooting work to reduce vibration, prevent premature bearing wear, and ensure machinery operates reliably in industrial environments.
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