Page 187 - Electronic Mechanic - TP - Volume - 2

ELECTRONICS MECHANIC - CITS

EXERCISE 166: Identity the fauits in various types of

vacuum cleaners & rectify

Objectives

At the end of this exercise you shall be able to
• to identify common faults in various types of vacuum cleaners and provide rectification steps.

Requirements

Tools/ Materials
• Screw driver (150 mm) - 1 No. • Brush or Soft Bristle - 1 No.
• Multimeter - 1 No. • Replacement Parts - 1 No.
• Needle-Nose Pliers - 1 No.

Procedure

1 Broken Vacuum Cleaner Belt: This is a common issue. Signs of a perishing belt include finding little flecks of
rubber in the machine or spotting a trail of debris on the floor in the path of the vacuum. Replacing the belt is
straightforward: unplug the machine, lay it on its back, unscrew the housing that covers the brush, remove the
broken belt, and hook on a replacement.

2 Rotating Brush Doesn’t Spin: This could be due to tangled hair, pet hair, and carpet fiber strands. Remove
these with a pair of scissors. Once you’re satisfied that there aren’t any foreign objects on the brush, re-attach
the belt and clip the brush back into place.

3 Loss of Suction: This could be caused by an obstruction in the hose. Disconnect the hose from the vacuum
head and body and give it a good shake to see if anything falls out or rattles.

4 Clogged Filter: Check, empty and/or replace the filter if needed.
5 Jammed Cleaning Head: Look and feel for any objects or clumps of dirt and remove.

PROCEDURE
1 Fault Detection: This is the process of discovering the presence of a fault in the vacuum cleaner before it
manifests itself in the form of a breakdown. There are two main approaches to fault detection.

2 Model-based fault detection: Carried out through mathematical modeling of signals and processes.
3 Knowledge-based fault detection: A method that leverages historical data on equipment performance.
4 Fault Diagnosis: After detecting a fault, the next step is to diagnose it. This involves isolating the fault and
identifying its cause.
5 Fault Rectification: Once the fault has been diagnosed, the next step is to rectify it. This involves repairing or
replacing the faulty component. In some cases, sophisticated algorithms can even initiate failure containment
actions to auto-correct the failure itself and restore the vacuum cleaner to its healthy condition.

6 Evaluation: After the fault has been rectified, it’s important to evaluate the vacuum cleaners performance to
ensure that the issue has been fully resolved.

7 Remember, all procedures must be undertaken in accordance with the quality management system Standard
Operating Procedures (SOPs), organizational policies, and prevailing legislation. It’s also important to report
any equipment faults to the relevant authorities for further investigation.
8 Please note that the exact procedure may vary depending on the specific model and type of vacuum cleaner.
Always refer to the manufacturer’s instructions or consult a professional if you’re unsure.

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CITS : E & H - Electronics Mechanic - Exercise 166