BRAILLO
l
B 650 SW2.1
113
5.27 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.
Is the operator panel functioning?
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.
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
the dust.
Check the main belt for wear, tear, cracks and check the tension.
Check the tractor belts for wear, tear, and cracks. Be sure to check the small spikes of the tractor belts
very carefully.
Clean the magnet racks.
Check the silicone string for the long pivot arms on all four magnet racks, the silicone string 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 all 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 on the push rod (12 x 56). This can be measured with a caliper, and 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 paper shoes could be the reason.
Check the length on the printing pin. This can be measured with a caliper, and the length must be
between 64.40 and 64.50 mm.
Lubricate all the stroke ball bearings, using a universal grease with molybdensulfid.
Lubrication should be done as shown in the figure on the next page.
