Teledyne 6750 - Total Organic Carbon analyzers - Manual (Page 75)

Total Organic Carbon Analyzer Maintenance
Teledyne Analytical Instruments 63
5.3.12 Pumps
If any of the pumps are not pumping (liquid flow is not observed
moving up the tubing), check to see if the motor is turning the pump
heads and the motor is not binding. Check for proper power and
connections to the pump motor. If the motor has failed (e.g., open
windings, etc.), replace motor. For 110 V 2 RPM motor , use P/N
ST18002; for 220 V 2 RPM motor use P/N ST18003. For pump motor
replacement, refer to Section 5.3.12.1 and Figure 5-14.
If the motor is operating properly, worn tubing is the probable
cause for poor or non–existent pumping. Retube pump heads as
described in Section 5.3.12.2 and Figure 5-15.
5.3.12.1 P UMP M OTOR R EPLACEMENT
Note: Masterflex pump heads must be removed for access to
Pump Motor Mounting Screws.
1. Turn main power OFF.
2. Remove 4 wing nuts from pump
head mounting hardware.