Delta Oil-Free 66-651 - Manual (Page 17)

17- ENG D26195
8. Apply sealant to the check valve threads. Reinstall the check valve (turn
clockwise).
9. Replace the pressure release tube. Tighten nuts.
10. Replace the outlet tube and tighten nuts.
11. Perform the Break-in Procedure. See "Break-in Procedure" in the
Operation section.
To Replace Regulator
1. Release all air pressure from air tank. See "To Drain Tank" in the
Maintenance section.
2. Unplug compressor.
3. Remove the outlet pressure gauge and quick connect (if equipped) from
the regulator.
4. Remove the regulator.
5. Apply pipe sealant tape to the nipple.
6. Assemble the regulator and orient as shown.
NOTE: Arrow indicates flow of air. Make sure it is pointing in the direction of air
flow.
7. Reapply pipe sealant to outlet pressure gauge and quick connect.
8. Reassemble outlet pressure gauge and quick connect. Orient outlet
pressure gauge to read correctly. Tighten quick connect with wrench.
Nipple
Outlet
Pressure
Gauge
Quick
Connect
Regulator
Arrow
Regulator
Regulator