Laplante V120103-RS11, Руководство по эксплуатации

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Operation manual
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Figure 7-5 belt
Sheave Alignment:
Any degree of sheave misalignment will result in a reduction of belt life. Misalignment whether
parallel or angular should not exceed 1/16
”
Parallel misalignment occurs when the shaft are parallel, but the face of sheaves is not in
alignment. Angular misalignment occurs when the shafts are not parallel.
Any easy and effective method for checking the alignment in both directions is to use an
accurate straight edge.
1. Switch off the unit, disconnect the power, and lockout and tag to prevent accidental
restarting.
2. Allow one minute after stopping the compressor for settling and the pressure relieve.
3. Remove the belt guard.
4. Lay the straight edge across the face of the motor sheave and check the alignment with the
air end sheave.
5. Then lay the straight edge across the face of the air end sheave and check the alignment
with the motor sheave.
6. If the alignment gap is greater than 1/16
”
in either direction, loosen the belts as outlined in
changing belts section and align the sheaves.
7. Reset the tension on the belts.
8. Return the unit to operation.