72
9. Maintenance and Inspection
Ɣ
SS7R, SS8R, HS8R
[Items Required for Replacement]
• Replacement reduction belt
• Allen wrench set
• Tension gauge (Capable of tensioning to 12kgf or greater)
• Strong string, looped (or long tie-band)
[Procedure]
1) Remove the pulley cover.
Remove the four affixing thin-head screws using an Allen wrench of 2 mm across flats.
2) Loosen the four tension adjusting bolts to loosen
the belt.
(Use an Allen wrench of 3 mm across flats.)
4) Loop a new belt over both pulleys.
5) Pass a looped strong string (or long tie-band) around the motor bracket and pull it with a tension gauge to the
specified tension. In this condition, uniformly tighten the adjusting bolts (hexagon socket-head bolts: M4 × 20,
4 pcs.).
3) Remove the belt from the pulleys.
Tension: SS7R:
7.3
kgf
SS8R/HS8R: 11.6
kgf
Adjusting bolt tightening torque:
323 N·cm (33 kgf·cm)