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Drum Maintenance Drive
With the Y-axis rotating, the drum maintenance unit is loaded against the drum for a short time in
each configuration (roller and blade/blade only).
R#
Definition
Time to blade first
0
contact (sec)
Time to roller first
1
contact (sec)
Roller/Blade loaded
2
average Y-axis
following error
(mpts)
Roller/Blade loaded
3
Y-axis following error
ripple (mpts)
Roller Average
4
Period (sec)
Roller Revs
5
Roller Disengaged
6
Time (sec)
Blade loaded
7
average Y-axis
following error
(mpts)
Blade loaded Y-axis
8
following error ripple
(mpts)
Blade Disengaged
9
Time (sec)
4-38
Typical
Value
Actions
.01 to .35
Reports the time from the load command to the
engine until the drum indicates blade contact.
-2 to 0.5
Reports the time from the load command to the
engine until the drum indicates roller contact.
-1000 to
Reports the average Y-axis following error
-140
during the Roll With Both Loaded interval.
0 to 1000
Reports the difference between the max and
the min Y-axis following error during the Roll
With Both Loaded interval.
50 to
Reports the average period of the Y-axis
1600
following error ripple during the Roll With Both
Loaded interval. This variation would be due to
the dmu roller rolling along the drum surface.
0 to 55
Reports the number of Y-axis following error
ripple peaks during the Roll With Both Loaded
interval.
-0.001 to
Reports the time from the unload roller
0.05
command to the engine until the drum
indicates no further roller contact.
-150 to
Reports the average Y-axis following error
-35
during the Roll With Blade Loaded interval.
MFG
Reports the difference between the max and
Only
the min Y-axis following error during the Roll
With Blade Loaded interval.
MFG
Reports the time from the unload blade
Only
command to the engine until the drum
indicates no further blade contact.
WorkCentre C2424 Service Manual
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Troubleshooting
