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4. Check, Adjustment and Replacement
Note: For removal procedure of the cabinets, printed wiring boards and other parts, refer to “DISASSEMBLY” of the Service Manual of the respective
models.
4-1. Drum Assembly
1. Removal procedure
1)
Remove the three screws (drum fitting M1.4
×
2.5) 1 fixing
the drum and remove the drum.
2. Attachment procedure
1)
Align the two reference holes A and B on the rear of the drum
with the reference pins A and B of the drum base assembly.
with the reference pins A and B of the drum base assembly.
2)
Attach the drum with the three screws (drum fitting M1.4
×
2.5) 1 in the order of A, B and C.
Tightening torque: 0.078
Tightening torque: 0.078
±
0.01 N•m (0.8
±
0.1 kgf•cm)
3)
Clean the drum while referring to 2-1.
4)
Check the tape tension and adjust it when necessary (Refer to
5-2).
When the drum is replaced with the new drum, perform the
check and adjustment of tape tension. When check and
adjustment are complete, run the lapping tape (Ref. No. J-15).
Running time: 15 seconds in the FWD mode.
5-2).
When the drum is replaced with the new drum, perform the
check and adjustment of tape tension. When check and
adjustment are complete, run the lapping tape (Ref. No. J-15).
Running time: 15 seconds in the FWD mode.
Note: Run the lapping tape only once. When the lapping reaches its
end, replace it with the new lapping tape.
Running the lapping tape is prohibited except when a new drum
is installed.
Running the lapping tape is prohibited except when a new drum
is installed.
5)
Adjust the tape path. (Refer to “5-4. Tape Path Adjustment”.)
Note: Do not touch the outside circumference.
Fig. 4-1
Drum
Hole (reference hole B)
Hole (reference hole A)
Reference pin B
Drum base assembly
Reference pin A
1
Three screws
(drum fitting M1.4
×
2.5)
A
C
B
Drum (rear view)
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