IAI America RCA2-TW4N - Manual (Page 122)

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13. Maintenance and Inspection
[6] Move the table by 0.5 to 1 mm from the mechanical end on the home side.
[7] Move the motor unit in the direction of the arrow shown below, and then install the belt.
Align the motor unit with the countermark on the actuator.
When replacing the belt, install the replacement belt.
[8] Pass around the base of the unit a strong string (or long tie band) that has been looped into a ring
shape, and pull the ring with a tension gauge. After confirming that the tension gauge is indicating the
specified tension, tighten the tension adjustment bolts uniformly.
Tension adjustment bolt
Model Nominal thread size Applicable Allen wrench
TA5R M3
0.83 N-m
(0.085 kgf-m)
TA6R/TA7R M4
1.76 N-m
(0.18 kgf-m)
Tension
TA4R: 1.5
r 0.1 kgf
TA5R/6R/7R: 2.5
r 0.1 kgf
Tension gauge