2007.03.07 Flow2 stairlift Tab 06: Systematic fault finding
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Systematic fault finding
Find the real cause
Obviously it’s easy to replace the faulty component and ‘rectify’ the fault. However.......
Components can become faulty for a variety of reasons. For example:
- Lightning struck close by yesterday.
- The product is poorly maintained.
- The component is at the end of its serviceable life.
- The component is too heavily loaded by the user.
- The component wasn’t fitted or connected correctly.
- Etc.
2.4 Carry out corrective action
Do everything you can to resolve the cause of the problem. In many instances you will then also need
to give the customer sound advice about the use and maintenance of the product. Show the
customer how to use the product and how he/she must maintain and clean it.
2.5 At the customer’s home, or in the workshops?
Repairs to the drive unit can be difficult and take a great deal of time. You probably won’t really want
the customer to be watching you the whole time. In such a situation it will be better to take the drive
unit with you to the workshops so that you can carry out the repair in more peaceful surroundings.
Take account of ESD!
Usually you won’t feel that you are building up an electrostatic
charge; however, you certainly will notice the discharge. At some
time in the past we’ve all experienced an irritating shock on getting
out of a car or touching a metal railing.
These shocks are caused by electrostatic discharges (ESD = Electro
Static Discharge). They result in minor muscle contractions, and
they’re annoying – but they are not dangerous for us.
CAUTION
Make sure you look for the real cause of the problem!
TIP
Do so only when you can arrange for a replacement drive unit in good time.
Fig. 2-4 Take account of ESD
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