8.1 State TWO results of failure to conduct routine maintenance on belt drive systems. 8.2 Give TWO reasons why the viscosity of a cutting fluid must be low. 8.3 Define the term flashpoint of a lubricant. 8.4 What does the abbreviation API stand for? 8.5 State TWO functions of an automatic transmission fluid. 8.6 Explain the procedure to replace the belt in a V-belt drive system of a drill press.

NSC Mechanical Technology Automotive Lack of maintenance: 8.1 State TWO results of failure

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

Question 8

8.1 State TWO results of failure to conduct routine maintenance on belt drive systems. 8.2 Give TWO reasons why the viscosity of a cutting fluid must be low. 8.3 D... show full transcript

Worked Solution & Example Answer:8.1 State TWO results of failure to conduct routine maintenance on belt drive systems - NSC Mechanical Technology Automotive - Question 8 - 2016 - Paper 1

Step 1

State TWO results of failure to conduct routine maintenance on belt drive systems.

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Answer

Tear on the belt: Routine maintenance helps in identifying wear and potential tears early, avoiding breakdowns.
Financial loss due to damage suffered: Neglecting maintenance can result in costly damage to machinery, which incurs additional repair expenses.

Step 2

Give TWO reasons why the viscosity of a cutting fluid must be low.

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To allow it to flow easily: Low viscosity ensures that the cutting fluid can circulate effectively, cooling the tool and workpiece.
Dissipate excess heat: Low viscosity facilitates heat transfer, helping to maintain optimal operating temperatures during machining operations.

Step 3

Define the term flashpoint of a lubricant.

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Answer

The flashpoint is defined as the lowest temperature at which the lubricant gives off vapor that can ignite when exposed to a flame.

Step 4

What does the abbreviation API stand for?

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API stands for the American Petroleum Institute.

Step 5

State TWO functions of an automatic transmission fluid.

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Answer

Transmit power in the torque convertor: Automatic transmission fluid aids in the smooth transmission of power between engine and wheels.
Acts as heat transfer medium: It helps to transfer heat away from the transmission to prevent overheating.

Step 6

Explain the procedure to replace the belt in a V-belt drive system of a drill press.

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Answer

Switch off the machine: Ensure the machine is powered down and locked out to prevent accidents.
Release tension on the belt: Loosen the adjusting screw or release the belt tensioner to take off the tension from the belt.
Remove the belt: Carefully take off the old belt from the pulleys making note of its routing.
Install the new belt: Place the new belt around the pulleys following the proper path as noted earlier.
Re-tension and align: Adjust the belt tension to the manufacturer's specifications and ensure it is properly aligned before testing the machine.

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

Worked Solution & Example Answer:8.1 State TWO results of failure to conduct routine maintenance on belt drive systems - NSC Mechanical Technology Automotive - Question 8 - 2016 - Paper 1

State TWO results of failure to conduct routine maintenance on belt drive systems.

Give TWO reasons why the viscosity of a cutting fluid must be low.

Define the term flashpoint of a lubricant.

What does the abbreviation API stand for?

State TWO functions of an automatic transmission fluid.

Explain the procedure to replace the belt in a V-belt drive system of a drill press.

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