4-6
BVW-55
4-2-4. Cleaning of Lead Surface and Tape Running Surface of Lower Drum
Caution
Be careful not to damage the lower drum (specially lead surface) during cleaning.
Pay careful attention when cleaning the edge portion above the lower drum because it is located near the
video heads.
Tools
. Cleaning cloth: 3-184-527-01
. Cleaning fluid: 9-919-573-01
. Skewer or an equivalent (Not metalic. )
Procedures
1. As shown in the figure, remove the magnetic powder with a skewer, running the skewer on the drum
lead surface.
m
. Never use a metallic skewer to avoid damage to the tape running surface.
. Be sure to remove the magnetic powder completely. Tracking may be badly influenced when
magnetic powder attaches to the drum lead surface.
2. Clean the drum lead surface and lower drum’s tape running surface (shaded portion in the figure)
with a cleaning cloth moistened with a cleaning fluid.
3. After cleaning, wipe them with a dry cleaning cloth two or three times.
4-2. Cleaning
Cleaning of Lead Surface and Tape Running Surface of Lower Drum
Cleaning cloth
Lead
Tape running surface
of lower drum
Skewer
Lead
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