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9. Maintenance and Inspection
8) Install the pulley assembly.
䈄
Align the angles of projections and depressions on
the couplings.
• Tighten the hexagon socket-head screws
(M3 × 40, 4 pcs.) using an Allen wrench of
2.5 mm across flats.
Align the angles of projections and depressions.
9) Loop the belt over the pulleys.
10) 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.).
(Use an Allen wrench of 3 mm across flats.)
Tightening torque: 83 N·cm (8.47 kgf·cm)
Tension: 8 kgf
Adjusting bolt tightening torque:
323 N·cm (33 kgf·cm)
11) Install the pulley cover.
Tighten the thin-head screws (M3 × 6, 4 pcs.)
using an Allen wrench of 1.5 mm across flats.
Tightening torque: 87.2 N·cm (8.90 kgf·cm)
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