8.1 State TWO results of failure to conduct routine maintenance on belt drive systems - NSC Mechanical Technology Welding and Metalwork - Question 8 - 2016 - Paper 1

The viscosity of a cutting fluid must be low for the following reasons:

1. To Allow It to Flow Easily: Low viscosity enables the cutting fluid to flow easily over the workpiece and tool, optimizing cooling and lubrication.
2. Prevent Excessive Load on Pump: A low viscosity fluid reduces the resistance during pumping, thereby preventing excessive load on the pump and ensuring efficient circulation.

The flashpoint of a lubricant is defined as the lowest temperature at which the lubricant gives off enough vapor to ignite when exposed to an open flame. This property is critical for assessing the safety and performance of lubricants under high-temperature conditions.

The abbreviation API stands for the American Petroleum Institute, which is an organization that represents the oil and natural gas industry in the United States.

Automatic transmission fluid (ATF) serves several important functions, including:

1. Transmit Power: It transmits power in the torque convertor, allowing for smooth shifting and operational efficiency.
2. Acts as Heat Transfer Medium: It functions as a heat transfer medium to maintain optimal operating temperatures by absorbing heat generated within the transmission system.

To replace the belt in a V-belt drive system of a drill press, follow these steps:

1. Switch off the Machine: Ensure that the machine is turned off and locked out for safety.
2. Release Tension: Loosen the belt tension by adjusting the tensioning screw to relieve pressure on the belt.
3. Remove the Old Belt: Carefully remove the old belt from the pulleys, ensuring not to damage any components.
4. Install the New Belt: Place the new belt over the pulleys, routing it correctly as per the design specifications.
5. Re-tension the Belt: Adjust the tensioning screw to re-establish the proper tension on the new belt and ensure it is correctly aligned.