FScurtis SE Series, Operator'S Manual, Page: 32 / 42

Curtis-Toledo Rotary Compressor
CAP862
Operations and Maintenance Manual
Chapter 6 Page 7
5. Remove piston and seat.
6. Inspect the valve body for scratches and deterioration of the seating surfaces.
7. Replace old parts with the renewal parts and re-assemble the valve.
8. If you loosened the fill plug to insure pressure relief, replace it and tighten.
9. Return the unit to service.
6.9 Belts
Routine examination of the drive system is recommended to insure maximum compressor
life. The belts need to be checked for wear and stretch.
To check the belts :
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 to relieve.
3. Remove the belt guard.
4. Inspect for any fraying or cracking of the belts. If there is any replace the belts.
5. Check the tension. The deflection should be about 1/64” per inch of span between the
sheaves with about 4 pounds of force perpendicular to the belt.
To change the belts: (SE20 thru SE50)
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 to relieve.
3. Remove the belt guard.
4. Remove the belts.
5. Replace with new belts.