5. Maintenance and Inspection
(Note) If the belt is not replaced at the same time and the following hexagonal socket bolts and
circular washers are not removed,there is no need to adjust tension of the belt as prescribed
in 8).
Hand a cable band (thin string) on the edge of the motor unit and pull it. When it is abutting
against the hexagonal socket bolt, tighten the bolt (where marked with a circle) with
2.5mm-sized (RA4R), 3mm-sized (RA6R/RA7R), or 4mm-sized (RA8R) hexagonal wrench
to hold the unit in the place.
RA4R RA6R, RA7R, RA8R
Model Tightening Torque
RA4R 162N cm
RA6R 323N cm
RA7R 323N cm
RA8R 631N cm
Hexagonal Socket
Head Bolt
The washer is attached in
close contact with the motor
bracket.
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