1. Belt tightening tool 2. VSM mini1. Belt tightening tool 2. VSM mini
7.4.7 Assemble motor screw
1. Tighten the motor cap screw with a 8 mm Allen key. Torque each
screw in cr
oss pattern to 40 Nm.
2. Rotate the pulley by hand for 5 to 8 times and make sure that the belt
is tightened and running correctly.
3. Attach the VSM mini on the belt
4. Tap the belt slightly and measure the frequency (Hz).
5. Make sure that the frequency is 83±5 Hz. If the belt tension is not
within range, unscrew the motor cap and repeat steps in Assemble
tooth belt on page 27 and steps 1‑5 in this section.
6. Remove the VSM mini
7.4.8 Assemble fail safe gear
1. Replace and assemble the fail-safe gear and all necessary parts back
to original position in reverse or
der of disassembly.
2. Place the bolts for fastening the gears.
300766038_002_C3 - 09/2021 - © Leybold
28
Maintenance
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