User guide
M
Milleniumâ„¢ RO System by GE Osmonics 
14693e - 31 Mar 03  4- 6  Routine Maintenance 
4.2  Specific Maintenance Procedures and Instructions  
4.2.1  Motor Lubricant Procedure 
1.  Remove the plastic plugs at both ends of the motor housing near the motor shaft. 
2.  Add three drops of SAE 20 wt. non-detergent motor oil into the opening. 
3.  Replace the plastic plugs. 
4.  Turn on the motor and run for 10 minutes. 
4.2.2 Leak repair
General information
: Any leak from any part of the system should be corrected as soon as 
possible. Left unattended, leaks can cause secondary damage necessitating expensive 
repairs. 
NOTE: 
Use FDA/NSF approved silicone sealant on all threaded connections. 
Threaded Connections: 
1.  Prior to performing this maintenance on any threaded fitting, release the pressure 
on the piping/tubing system (i.e., turn off the pump, open a drain port, etc.) 
2.  Remove the connecting tubing. 
3.  Re-tape the pipe threads with 2 or 3 wraps of Teflon tape. (It is not necessary to 
remove the old Teflon tape, although it may be advisable to do so if it is in very 
bad shape). 
4.  Re-insert the threaded fitting into the opening and tighten hand tight. Be careful 
to avoid cross threading. Tighten further using a wrench only if necessary, and 
only about one-half turn. 
5.  Re-connect piping, pressurize, and inspect for leaks. 
6.  If the leak is still present, de-pressurize system again and tighten the fitting 
another quarter-turn. Check again for leaks. (Over tightening can crack the 
female fitting). 
7.  If the leak continues, it may be necessary to replace the male threaded fitting 
and/or the female threaded fitting. 










