Panasonic AJ-YA120AG, Service Manual

Page: 308 / 647

MECH-38
2-18. Main Brake Torque
Confirmation
TP
S Reel, T Reel
MODE EJECT (POWER OFF)
TOOLS
Dial Torque Gauge (VFK1191A)
Torque Gauge Adaptor (VFK1152)
SPEC. Direction A
: 0.4cNm ± 0.2cN·m (20gf·cm ± 10gfcm)
Direction B
: 0.2cNm ± 0.1cN·m (20gf·cm ±10gfcm)
1. Attach the adaptor (VFK1152) to the gauge
(VFK1191A)
2. The following procedure is common for both S
and T reels.
3. Push the core of the solenoid away from the reel,
and pull it back to contact the reel.
4. Put the torque gauge on the reel, and turn the
gauge to the direction A until the brake starts
slipping against the reel.
5. Measure the torque under the condition above,
and confirm that it is in specification.
6. Remove the gauge once and push the core of the
solenoid away from the reel.
7. Pull the core of the solenoid back to contact the
reel, and put the gauge again on the reel.
8. Turn the gauge to the direction B until the brake
starts slipping against the reel.
9. Measure the torque under the condition above,
and confirm that it is in the specification.
Note: When measuring the brake torque, perform the
Above step 3 at the first.
Fig.2-18-1
2-19. Supply & Take-up Brake Arm
Unit Replacement
(Removal)
1. Release the brake by pressing the iron core of the
Supply and Take-up Brake Solenoid.
2. Remove the 2 Cut Washers (A) as shown in figure
2-19, and remove the Supply and Take-up Brake
Arm Unit.
(Installation)
1. Install the new Supply and Take-up Brake Arm
Unit follow the removal steps in reverse order.
NOTE:
Hook up the Brake Arm Spring as shown
below figure.
2. After installation, please perform the “Main Brake
Torque Confirmation”. (Refer to the item “2-18.
Main Brake Torque Confirmation”.)
Fig.2-19-1
Cylinder
S Reel T Reel
S Brake Arm Unit
T brake Arm
Unit
S Brake Arm Spring
Cut Washer (A)
T Brake Arm
Spring