Operation

1.To operate your Wheel Balancer, first ensure that it is properly assembled and level with your floor as discussed above.

2.Remove the Bubble Level (A) from the top of the Wheel Balancer to protect it from possible damage when placing the wheel on the balancer.

NOTE: Before balancing, remove all weights from the wheel rim, and assure that the wheel, tire and stem are in finished condition as they will be installed on the vehicle.

3. Place your wheel horizontally with the valve stem up on the balancer with the top of the Hub Support (C) protruding through the center of the wheel. Be sure that the wheel is level on the Hub Support

(C) by adjusting the alignment of the wheel

Bubble Level (A)to the concentric circles marked around the Hub Support (C).

4.Replace the Bubble Level (A) on top of the Hub Support (C).

5.The Bubble Level (A) will indicate an out-of-balance wheel by showing the bubble out of the center of the bullseye. The bubble will move toward the “light” side of the wheel.

6.Balance the wheel by placing wheel weights of various sizes (not included) on the rim side indicated as “light” by the Bubble Level (A). Careful placement of weights will result in the wheel being balanced. The bubble in the Bubble Level

(A) will be centered in the bullseye when the wheel is balanced.

WARNING: When balancing, only place the weights where they are needed. DO NOT hammer the weights in place while the wheel is on the Balancer. This will result in damage to the Balancer. Mark the position of the weights, and hammer them on to the rim after the wheel has been removed from the Balancer.

7.Recheck your work after you have installed the weights. Replace the wheel on the balancer with the valve stem up. Check to ensure that the bubble is centered in the bullseye. If it is not, remove the wheel from the balancer, remove the weights from the wheel, and start again from step 3 above. For best results it is inportant that your wheels are properly balanced before using them on your vehicle.

SKU 91939

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Harbor Freight Tools 91939 operating instructions Operation
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91939 specifications

Harbor Freight Tools 91939 is a vibration meter designed for users who require an efficient and effective way to measure vibration levels in machinery and equipment. This handheld device is particularly beneficial in maintenance, troubleshooting, and predictive maintenance procedures. Its design and functionality make it a valuable tool for professionals in various industries, including manufacturing, automotive, and HVAC.

One of the standout features of the Harbor Freight Tools 91939 is its digital display, which provides clear and easy-to-read measurements. The large LCD screen allows users to quickly interpret vibration levels, helping them identify potential issues before they escalate into costly repairs. The device measures vibration in both velocity (mm/s) and acceleration (m/s²), giving users a versatile tool for different applications.

Another significant feature is its wide measuring range, which allows users to capture a variety of vibration levels with precision. The Harbor Freight 91939 can measure vibration frequencies from low to high, making it suitable for detecting imbalances, misalignments, and bearing problems in rotating machinery. This flexibility ensures that users can troubleshoot a broad range of equipment effectively.

Durability and ease of use are also hallmarks of the Harbor Freight Tools 91939. Constructed with robust materials, this vibration meter is built to withstand the rigors of everyday use in industrial settings. The ergonomic design ensures that it is comfortable to hold, allowing users to perform measurements effortlessly over extended periods.

In addition to its primary measurement capabilities, the Harbor Freight 91939 often incorporates features like data storage, which enables users to save readings for later analysis, making it an excellent tool for tracking maintenance over time. Some models might also have the ability to connect to computers for more advanced data analysis and reporting options.

With its blend of affordability, reliability, and multifunctionality, the Harbor Freight Tools 91939 appeals to both professionals and DIY enthusiasts who are serious about equipment care. Understanding vibration levels is vital in many industries, and having a tool that provides accurate readings enhances preventive maintenance efforts, ultimately improving efficiency and equipment longevity. Whether used in a commercial workshop or a home garage, the Harbor Freight Tools 91939 stands out as a must-have instrument for anyone needing to measure and monitor vibration levels effectively.
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