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SDN4340
SDN4350
a
SDN4360
SECONDARY SHEAVE
Installation steps:
•
Hold the spring seat 1 and turn the fixed
sheave 2 counterclockwise to the specified
angle a.
NOTE:
The holes in the spring seat should align with the
bolts on the sliding sheave.
a = (sheave hole number + spring seat hole
number) × 10
Standard angle a:
80°
•
Push down on the spring seat until the bolts
come through the holes.
•
While pushing down on the spring seat, install
the nuts and tighten them to the specified
torque.
Nut (spring seat):
23 Nm (2.3 m • kg, 17 ft • lb)
4. Measure:
•
Secondary sheave clearance a
Out of specification → Adjust.
Secondary sheave clearance a:
35.0 ~ 35.8 mm (1.38 ~ 1.41 in)
5. Calculate:
•
Shim thickness
NOTE:
For example, if the clearance is 36 mm (1.42 in),
install a 0.5-mm (0.02-in) shim on each bolt so the
clearance is 35.5 mm (1.40 in).
6. Adjust:
•
Secondary sheave clearance
4-13
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