STEPRACE: Service & Maintenance Manual - rev. 1.2
Page 8.4
8.4. PRIMARY SHAFT - SECONDARY SHAFT CHAIN TENSION
Figure 8.4-1
Carry out the procedures described in paragraphs
7.8. “Disassembling the side guards” and 7.9.
“Disassembling the chain guard”.
1. Back off the 4 screws a which fix the
secondary shaft to the frame.
2. Adjust nut b and screw c until the vertical
play of the chain at the point midway
between the 2 shafts is approximately1 cm.
3. Check the amount of vertical play at the
midway point with the pedals in various
different positions.
Check that the above adjustments
maintain the alignment between the
primary and secondary shaft axes.
4. After completing the adjustment, lock down
what previously backed off.
To ensure that the chain tension is
correct, move it back and forth over the
entire circumference of the primary
shaft sprocket wheel.
After completing the procedure, check
the alignment of the chain as described
in paragraph 8.3. .
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