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Chapter 9 - Maintenance Guidelines
9.1 Purpose of the Maintenance Guidelines
• The technician is given guidelines for carrying out the service.
• This improves service- and repair quality.
• The dealer or service technician can calculate the expected maintenance costs for the user
transparency.
• Calculable maintenance costs offer the opportunity for service contracts. These result in additional
business, and a degree of customer retention that should not be underestimated.
• Same service quality worldwide.
• The wear-and-tear-parts definition helps to identify (unjustified) warranty claims by the customer,
mainly in the case of intensive use.
• Defined wear-and-tear parts are subject to a charge; the parts declared in the spare-parts-warranty
extension (Bernina warranty provision) are excepted.
• Compliance with maintenance intervals allows system functioning to be ensured and increases the
service life of the sewing and embroidery machines.
• Should the service and maintenance intervals of these Maintenance Guidelines not be complied with,
the guarantee may be limited.
The Maintenance Guidelines consists of
• the wear-and-tear-parts definition.
• the service check to be carried out during a service.
9.2 Explanatory notes on the stitch- and hour counter
Every sewing stitch is counted. Owing to the lower mechanical load, only every second embroidery stitch is
counted.
9.2.1 When is a cleaning message displayed?
On reaching 500,000 stitches a cleaning reminder appears. Cleaning can be carried out by the customer.
The stitch counter can be found under Information in the Setup Program.
9.2.2 When is a maintenance message displayed?
On reaching 3,000,000 stitches a maintenance/servicing reminder appears.
9.2.3 How are the stitches counted?
In sewing mode alone, 3,000,000 stitches are counted.
In embroidery mode alone, a 3,000,000 stitch count corresponds to 6,000,000 stitches in real terms. This is
due to the lower overall mechanical loading of the system.
A combination of sewing and embroidery can be assumed for most machine uses. That means that
4,500,000 stitches have actualls been carried out when the stitch counter says 3,000,000.
The hours are counted consecutively 1 to 1, not permanently, but always after about 2 minutes (reduction of
the "write" cycles).
The hours can only be read out via the Service Program, and are not accessible by the customer.
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Troubleshooting
