Operating instructions
14. Inner components suffering from wear
•
replace worn parts
15.
Density and/or viscosity of liquid handled is too high
•
seek assistance
16.
Stuffing box not straight
•
tighten evenly
17.
Stuffing box too tight
•
loosen
18.
Shaft sealing worn
•
tighten packing
•
replace packing and/or mechanical seal
•
check sealing, flushing and cooling pipes (pressure)
•
avoid dry running
19.
Lines and roughness on shaft or shaft sleeve
•
replace parts
20.
Unsuitable packing material
•
use suitable material (check shaft or shaft sleeve for damage beforehand)
21.
Deposits on mechanical seal
•
clean
•
replace mechanical seal if necessary
•
if necessary provide additional rinsing or quench
22.
Impeller out of balance
•
remove blocks/deposits
•
replace if broken or unevenly worn
•
check shafts to ensure that they are running true
23.
Coupling not aligned
•
align pump unit better
24.
Coupling distance too small
•
change
25.
Forces in pipeline too high (pump unit under strain)
•
change (support pipes, use compensators, etc.)
•
is foundation plate/frame properly cast in place?
26.
Too much, too little or the wrong type of lubricant
•
change
Pa 100/3-en
20
