Flowserve FRBH Manuale Utente Scaricare il pdf (Pagina 44)

FRBH, FRBHX AND FRBHS USER INSTRUCTIONS ENGLISH 71569178 10-04

Page 44 of 54

FAULT SYMPTOM

Pump overheats and seizes

⇓⇓

Bearings have short life

⇓⇓

Pump vibrates or is noisy

⇓⇓

Mechanical seal has short life

⇓⇓

Mechanical seal leaks excessively

⇓⇓

Pump requires excessive power

⇓⇓

Pump loses prime after starting

⇓⇓

Insufficient pressure developed

⇓⇓

Insufficient capacity delivered

⇓⇓

Pump does not deliver liquid

⇓⇓

PROBABLE CAUSES POSSIBLE REMEDIES

Improper installation of bearings (damage during

assembly, incorrect assembly, wrong type of

bearing etc).

Check method of assembly, possible damage or

state of cleanliness during assembly and type of

bearing used. Remedy or CONSULT

FLOWSERVE, if necessary.

Damaged bearings due to contamination. Check contamination source and replace damaged

bearings.

C. MOTOR ELECTRICAL PROBLEMS

Wrong direction of rotation. Reverse 2 phases at motor terminal box.

Motor running on 2 phases only. Check supply and fuses.

Motor running too slow. Check motor terminal box connections and voltage.

1 2 ... 39 40 41 42 43 44 45 46 47 48 49 ... 53 54

Nessun commento

Flowserve FRBH Manuale Utente Pagina 44