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5-1. Periodic Maintenance
5-1-2. Periodic Replacement and Check Item Table
The replacement time shown in the following table is not the guarantee term of parts. The replacement
time of parts varies depending on the operating environment and conditions of the unit.
Especially, the pinch roller, cleaners and air filter may be required replacing earlier than replacement
period shown in table depending on the degree of their dirt or abrasion.
The arrows "↓" and "↑" in the table indicate that the part is included in the assembly described on the
upper/lower line. If the assembly on the pointed line is replaced, the part is also replaced as a component
of the assembly together.
For the hours meter, refer to Section 5-1-3.
For replacing each part, refer to the maintenance manual part 2, volume-1.
No.
Replacement parts
1
Upper drum
2
Drum assembly
*2
3
Brush slip ring assembly Drum rotating time (H02)
4
Video head cleaner
5
Video head
cleaner assembly
*2 *3
6
AT head cleaner
7
Air filter
8
Pinch roller
9
Reel motor
10
Capstan motor
11
Pinch solenoid
*3
12
Fan motor (rear)
13
Fan motor (EQ)
14
Fan motor (MD)
15
Fan motor (PS)
16
Tape tension check
*1 Measure and check tip protrusions of the video heads referring to Section 5-3.
*2 Drum assembly includes an upper drum and a brush slip ring assembly.
*3 Check (adjust) the video tracking referring to Section 7-1-3 of the maintenance manual part2, volume-1.
*4 Check that the shape is not deformed and that is not dirty by visual.
*5 Video head cleaner assembly includes a video head cleaer.
*6 Replace these parts when the replacement period or count is reached whichever is earlier.
*7 Check (adjust) the tape tension referring to Section 7-2 of the maintenance manual part 2, volume-1.
5-2
R: Replace the part
Hours meter
(Menu No.)
1000
Drum rotating time (H02)
Drum rotating time (H02)
Drum rotating time (H02)
C
Drum rotating time (H02)
Threading times (H04)
Replace when used 200,000 times
Drum rotating time (H02)
C
Air filter use time (H15)
Tape running time (H03)
C
Tape running time (H03)
Tape running time (H03)
Tape running time (H03)
Threading times (H04)
Replace when used 200,000 times
Energized time (H01)
Replace when used 40,000 hours
Energized time (H01)
Replace when used 40,000 hours
Energized time (H01)
Replace when used 40,000 hours
Energized time (H01)
Replace when used 40,000 hours
Tape running time (H03)
C
C: Perform check (adjustment)
Replace it depending on its condition
Inspection hours (h)
2000
3000
C
*1
C
*1
*4
R
C
*4
*4
R
C
*4
*4
R
C
*4
*7
*7
*7
C
C
4000
5000
6000
(↓)
C
*1
C
*1
C
*1
C
*3
R(↑)
↓
R
C
*4
R
R
C
*4
R
R
R
C
*4
R
R
R
R
*7
*7
*7
C
C
C
DNW-A22/A22P
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