User Manual

–12–
Fig.3-5-1
3-5. CYLINDER (DRUM)
(See Fig. 3-5-1 to 3-5-3)
3-5-1.CYLINDER (DRUM) MOTOR,
UPPER CYLINDER ASSEMBLY
1) Disconnect the flexible cable connected to the
stator
.
2) Remove the two screws
, and remove the stator ,
and spring
.
In this state, the cylinder earth chip
will fall off if the
top and bottom of the mechanism unit are reversed.
Note: Cylinder earth chip
can be removed by
removing the cylinder motor mounting
in
step 4).
3) Remove the two screws
and remove the rotor .
4) Loosen the screw
with the hexagonal wrench, and
remove the cylinder motor mounting
.
Note: The hexagonal wrench (VHJ-0113) is 2mm
diagonally. It is provided with the servicing
tool upper drum fitting tool kit (VHJ-0112).
5) Remove the upper cylinder assembly
and the spacer
.
The spacer
may come off attached to the upper
cylinder assembly
.
ASSEMBLY NOTES:
1. Adjustments are required when attaching the cylinder
motor mounting
. As shown in Fig. 3-5-2, face the
protruded side of the cylinder motor mounting
downwards, and with the hexagonal wrench pressed
to screw
, adjust the position of the cylinder motor
mounting
in the direction of the screw . In this
state, hold the cylinder motor mounting
with the
upper drum fitting tool (VHJ-0112) and tighten the
screw
with the hexagonal wrench.
2. When attaching the rotor
, the phase must be
adjusted to that of the upper cylinder assembly
. As
shown in Fig. 3-5-3, attach so that the hole
of the
upper cylinder assembly
and hole of the rotor
are on the same side.
3. Tighten the two screws
for attaching the rotor
and the two screws for attaching the stator using
a torque of 2.5 to 3.5 kg/cm.
4. Be careful that the tape path surface of the cylinder
(drum) does not scratch or become dirty.
If it becomes dirt, clean.
5. After attaching, refer to "4-3. Tape path adjustment"
and the section on electrical adjustments in the service
manuals for the respective models, and adjust the
switching position of the servo circuit.
Fig.3-5-2
Fig.3-5-3
Stator
Rotor
Screws
Spring
Cylinder earth chip
Cylinder motor mounting
Screw
Upper cylinder
assembly
Spacer
Flexible cable
Screws
Mounting
motor
cylinder
Upper drum
fitting tool
(VHJ-0112)
Screw
Hexagonal
wrench
Screw
Rotor
Hole
Hole
Upper cylinder
assembly