BRAILLO
l
B 650 SF
95
4.19 Maintenance
Weekly (without taking the cover off).
Does the Printer print correct Braille?
How is the Braille dot quality?
Check for any damages on the outside of the cover.
Are the operator panel and display functioning and are power lamps illuminated?
Do the fans work? Are the fans clean?
If there is a lot of dust from the paper on the paper guides, use a vacuum cleaner.
Note! Do not use the vacuum cleaner on the main board!
Drain the compressor tank and lter regulator.
Every 250 hours or six months.
All of the weekly maintenance.
Is the Printer mechanism, electric unit, base plate and so on clean? Use a vacuum cleaner to remove
dust.
Check the main belt for wear, tear, cracks and check the tension.
Clean the magnet racks.
Check the sponges for the long pivot arms on the four magnet racks, the sponges should be able to
keep the long pivot arms pressed against the support list.
When putting the magnet racks back in, check all the magnet rack adjustments.
Check if the printing pins move freely, and if not clean the printing pin guide.
Every 500 hours or twelve months.
All of the 250 hours or six months maintenance.
Check the four sponges for the short pivot arms, the sponge should be able to keep the short pivot arm
pressed all to the end of its travelling distance.
Check the wear and tear on the push rod (12 x 56). This can be measured with a calliper. The length
must be between 55.90 and 56.00 mm.
Check if the paper shoes are worn. The Printer should be able to give good Braille dot quality, but if
not, worn papershoes could be the reason.
Check the length on the printing pin. This can be measured with a calliper, and the length must be
between 64.40 and 64.50 mm.
Check sharpness of the knives on the paper cutter. Replace if necessary.
Lubricate all the stroke ball bearings, using a universal grease with molybdensuld.
Lubrication should be done as described in the gure on the next page.
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