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Maintenance 7. Replacing the Brake
E2C Rev.6
149
(6) Secure the pulley to the motor shaft of the
Joint #3 motor.
To do so, tighten one of the setscrews to
the flat face of the motor shaft until the
screw just touches the surface. Insert a
bushing into the other setscrew hole to
prevent damage to the motor shaft. Then,
tighten both setscrews.
Bushing
Pulley
M4
×
8
Flat point
setscrew
(Round chamfer
side)
M4
×
8
Flat point
setscrew
(Flat side)
(7) After the pulley is secured, pull out the gap gauge.
(8) Fasten the brake cables to the Joint #3 motor with a wire tie.
(9) Place the Joint #3 motor unit back on the
Arm #2.
Make sure that the brake cables do not
touch the pulley when installing the Joint
#3 motor unit to Arm #2.
(10) Place the Z belt around the Z1 pulley and
Z2 pulley.
Make sure that the gear teeth of the belt
mesh with the pulleys completely.
Pulley
Z belt
4-M4
×
1
2
+Washer,
Spring washer
Motor plate
Joint #3 motor unit
(11) Loosely secure the Joint #3 motor unit to Arm #2.
Loosely secure the Joint #3 motor unit to Arm #2 so that the motor unit can be moved
by hand, and it will not tilt when pulled. If the unit is secured too loose or too tight,
the belt will not have the proper tension.
(12) Apply the proper tension to the Z belt, and
secure the Joint #3 motor unit.
To do so, pass a suitable cord or string
around the Joint #3 motor unit near its
mounting plate. Then, pull the cord using
a force gauge or similar tool to apply the
specified tension shown in the figure on the
right.
Make sure that the brake cables do not
touch the pulley.
Tension of Z belt: 39.2 N (4 kgf)
Adjustable range:
29.4–49.0 N (3–5 kgf)
4-M4×
1
2+Washer, Spring washer
)
NOTE
Содержание E2C Series
Страница 1: ...SCARA ROBOT E2C series MANIPULATOR MANUAL Rev 6 EM069R1409F ...
Страница 2: ...MANIPULATOR MANUAL E2C series Rev 6 ...
Страница 8: ...vi E2C Rev 6 ...
Страница 14: ......
Страница 81: ...Maintenance This volume contains maintenance procedures with safety precautions for E2C series Manipulators ...
Страница 82: ......
Страница 92: ...Maintenance 2 General Maintenance 80 E2C Rev 6 ...
Страница 118: ...Maintenance 4 Replacing the Cable Unit 106 E2C Rev 6 ...
Страница 194: ...Maintenance 11 Replacing the Signal Relay Board 182 E2C Rev 6 ...