User Manual

112
13. Maintenance and Inspection
13.9 Replacement of Belt and Motor for Reversing Type (AC Servo Motor: RCA2)
[Items required for replacement]
 Replacement motor unit of reversing type
Model
Axis Type
Without Brake With Brake
TA4R RCA2-MU1B RCA2-MU1B-B
TA5R RCA2-MU2B RCA2-MU2B-B
TA6R RCA2-MU3B RCA2-MU3B-B
RCA2
(brown
encoder
cable
connector)
Table
type
TA7R RCA2-MU4B RCA2-MU4B-B
 Belt
Manufacturer: Bando Chemical Industries, Ltd.
Belt model (type) Model
40S2M138R, 4-mm wide (clean rubber type) TA4R
60S2M168R, 6-mm wide (clean rubber type) TA5R
60S2M198R, 6-mm wide (clean rubber type) TA6R
60S2M198R, 6-mm wide (clean rubber type) TA7R
 Tension gauge
 Hex wrench set
[Procedure]
[1] Remove the pulley cover.
Remove the mounting screws (TA4R: 2 pcs, other: 3 pcs).
[2] Loosen the tension adjustment bolts (4 pcs) and slacken the belt.
Mounting screw
Model
Nominal
thread size
Applicable Allen
wrench
TA4R/TA5R M2.5 1.5 mm across flats
TA7R/TA7R M3 2 mm across flats
Tension adjustment bolt
Model
Nominal
thread size
Applicable Allen
wrench
TA4R M2.6 2 mm across flats
TA5R M3 2.5 mm across flats
TA6R/TA7R M4 3 mm across flats