TallyGenicom 6600 Series, Maintenance Manual

Page: 39 / 474

Cleaning the Interior
39
15. Place the shuttle so that the base sits flat on the work surface. Use the
brush provided to remove as much debris as possible from the hammer
tips, brushing in a downward direction (Figure 6.). Rotate the shuttle 90°
away from you and repeat the brushing this time working from the center
of the shuttle outward towards both ends.
NOTE: Only remove the frets if contamination is affecting print quality. Study
the procedure first to understand how you will align and re-install the
frets. Tools are available to aid this process for certain frets.
Figure 6. Cleaning the Hammer Tips
CAUTION
Do not use liquid cleaners of any kind or metal tools of any kind when
removing or cleaning the frets. Due to water content in most isopropyl
alcohol products, 99% alcohol or higher is required. Do not use alcohol
with high water content as the water could later cause corrosion.
The hammer bank contains a strong magnet. To prevent damage to the
hammer tips, do not let the hammer bank cover assembly snap into
place as the hammer bank magnet attracts it. Any impact of the cover
against the hammer bank can break hammer tips.
16. Use tape or a nonabrasive marker or pencil to mark the location of each
fret in relation to the counter balance.
17. Remove the fret mounting hardware and set aside for later reassembly.
18. Remove the frets from the shuttle and set aside for later reassembly.
19. Use the brush to remove any remaining debris from the spring mounting
surface and pole pin areas of the shuttle.
20. Use an alcohol pad to remove any remaining debris from these areas of
the shuttle.
21. Before reinstalling the frets, brush the back side of the tines in the
direction of the tines with the brush provided to remove any debris
clinging to the tines.
184072a
Hammer Tip