Vane Breakage - Becker TLF 2.250 Maintenance Manual

Troubleshooting:
•
o Vane breakage after commissioning.
o Vane breakage
End-Shield - contact

Vane Breakage

Rotor turns backwards. (Check the electrical connection!)

Pump has been stored in very humid ambient.

Swelling of vanes; corrosion on surfaces.)
•
Too many start/stops.

Limit 6 per hour.
•
Rotor turns backwards due to missing check valve.

Overload (Clogged filter cartridges).

Grease was not removed from the face of the end-shield causing the vane

to stick in the slots.
Non-Becker Vanes are used.

Vanes cupping due to overheating.

Blocked Relief valve.

Pump was not configured for altitude.

Too much discharge plumbing.

Rotor has swelled due to overheating and contacted the end-shields.

If you see signs of contact, call your Local Becker representative.
•
Rotor - contact
Cupping
Chipping
12