13-MAINTENANCE AND REPAIRS (continued)

WARNING

To reduce the risk associated with pinch, entanglement and hazardous voltage:

Turn electrical supply off and disconnect before performing any adjustments, maintenance or servicing the machine or taping heads

G

G

G

Figure 13-5 – Box Drive Assembly, Infeed End

6.Install the new belt around drive rollers and insert new pin. Pin must not extend beyond edge of belt.

7.To set drive belt tension, turn adjustment screws (G) equally on both the upper and lower tension assemblies. Turn the screws clockwise to increase tension or counterclockwise to decrease tension. See Figure 13-5.

Use a force gauge to pull the belt outward

25mm [1 inch] at mid span, as shown with a moderate pulling force of 3.5 kg [7 lbs].

8.Reverse procedures in Steps 1-3 (Figure 13-4)to reassemble the drive belt assembly.

Important – Before installing new drive belt, check the belt inside surface for drive direction arrows and install belt accordingly. If no arrows are shown, the belt may be installed either way.

13.9 Drive Pulley Rings

Before installing a new belt, check the orange plastic drive pulley rings for wear. If torn, broken, or worn smooth, replace the rings (Figure 13-6).

Figure 13-6

800a3-NA

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2011 September

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3M 800a3 manual Box Drive Assembly, Infeed End, Drive Pulley Rings

800a3 specifications

The 3M 800A3 is an advanced respiratory protective device designed to provide high-performance filtration and comfort for users in various environments. It is particularly beneficial for those working in industries such as construction, manufacturing, and healthcare, where exposure to airborne contaminants is a significant concern. The design and technology behind the 3M 800A3 reflect the company's commitment to innovation and safety.

One of the main features of the 3M 800A3 is its high-efficiency particulate air (HEPA) filtration system. This system is engineered to capture at least 99.97% of airborne particles, including dust, pollen, smoke, and other harmful substances. This level of efficiency ensures that users can work confidently, knowing they are protected against fine particulate matter that could pose health risks.

The 3M 800A3 also incorporates a unique ergonomic design that enhances comfort and wearability. The soft, adjustable straps allow for a customizable fit, which is essential for prolonged use. Additionally, the device features a lightweight construction that reduces fatigue, enabling users to maintain focus and productivity throughout their workday.

Another notable characteristic is its compatibility with various 3M filters and cartridges. This flexibility allows users to tailor their respiratory protection based on the specific hazards they may encounter. Whether dealing with chemical vapors, fumes, or particulates, the 3M 800A3 can be equipped with the appropriate combination of filters to ensure optimal safety.

Moreover, the 3M 800A3 is equipped with a low-profile design, which minimizes interference with other personal protective equipment, such as safety glasses or face shields. The thoughtful engineering behind this product takes into account the practical challenges faced by users in their work environments.

To further enhance user experience, the 3M 800A3 includes features such as an exhalation valve that allows for easier breathing and reduced heat buildup within the mask. This is particularly advantageous in high-temperature settings or while performing strenuous tasks.

In summary, the 3M 800A3 respirator is a state-of-the-art protective device that combines advanced filtration technology, ergonomic design, and compatibility with various filters. Its focus on comfort and efficiency makes it a valuable tool for professionals needing reliable respiratory protection in challenging conditions.