M
AINTENANCE
.............................
Sievers M500e TOC Analyzer
Operation and Maintenance Manual
DLM 78510-02 EN Rev. B
281
SUEZ © 2022
10.
Dispose of the old pump heads according to local regulations.
11.
Remove the new pump heads from the packaging.
12.
Slide one pump head onto the shaft and push it all the way back, making sure
the set pins are seated properly. You may need to “walk” the pump head onto
the shaft. The shaft is a “D” and must align properly with the pump heads.
13.
Slide the second pump head onto the shaft and push it all the way back,
making sure the set pins are seated properly.
14.
Replace and secure the two Phillips-head (crosshead) screws. Do not over
tighten to avoid damaging the pump head or motor.
To confirm that the screws are not overtightened, hold the body of the pump
head and attempt to move it a few degrees clockwise and counterclockwise.
The body of the pump head should still be able to move a slightly. If the pump
head body is immobile, then the screws are overtightened.
NOTE:
When securing the pump head screws, ensure that the body of
the pump head can shift independently from the bridge to allow proper
alignment between the screws and the shaft of the motors. This prevents
excess strain on the motor by ensuring proper alignment. If the screws
are overtightened, the pump head cannot properly shift to align on the
motor’s shaft.
15.
Reattach the sample pump tubing. Tubing on the left side of the pump head
should run to either length of the tubing on the left; tubing on the right side of
the pump head should run to either fork of the “Y” tubing.
16.
Manually record the installation date for the pump heads in the service log
(
).
Bridge is immobile
Body can move
slightly
