Allweiler NIT Series - Troubleshooting List

Troubleshooting
Fault number
12 34
5
6
7
8
Cause
Remedy
–– –– – –––
Lubricant: too mu ch, not enough or
unsuitable
Reduce, top up or re place the lubrican t.
–– –– – –
X
–
Connecting b olts not tightened properly
Tighten the connecting b olts.
–– –– – –
X
–
Mechanical seal worn
Replace the mechanical seal.
–– –– – –
X
–
Housing seal d efective
Replace the housi ng seal.
–– –– – –
X
–
Shaft sleeve is infiltrated
Replace the shaft sleeve and/or O-ring.
–– –– –
XXXPumpdistorted
Check the pipe connections and pump
attachment.
–
X
–
X
–
X
–
X Motor running on 2 phases
Check the fuse and replace it if
necessary.
Check the cable connections and
insulation.
Tab. 13 Troubleshooting list
30 NIT series BA-2017.03 en-U S 160-282/ 0 – 550 154