7.2 Separating functions 7 Fault Finding
7.2 Separating functions
7.2.1 Bowl opens accidentally during operation
Cause Corrective action
Strainer in the operating water supply is clogged. Clean the strainer.
No water in the operating water system.
Check the operating water system and make
sure the valve(s) are open.
Hoses between the supply valves and separator
are incorrectly fitted.
Correct.
Nozzle in operating slide clogged.
Clean the nozzle.
Rectangular ring in discharge slide is defective.
Renew the rectangular ring.
Valve plugs are defective.
Renew all plugs.
Supply valve for opening water is leaking.
Rectify the leak.
7.2.2 Bowl fails to open for sludge discha
rge
Cause Corrective action
Strainer in the operating water supply is clogged. Clean the strainer.
Water flow too low.
Check the water flo
w
Hoses between th
e supply valves and separator
are incorrectl
y fitted.
Correct.
Nozzle in oper
ating slide missing.
Fit the nozzle
.
Rectangul
ar ring in the operating slide or bowl
bodyisde
fective.
Renew the r
ectangular rings.
7.2.3 Unsatisfactory separation result
Cause Corrective action
Incorrect separation temperature. Adjust.
Throughput too high. Adjust.
Disc stack is clogged.
Clean disc stack.
Sludge space in bowl is filled. Clean and reduce the time between sludge
discharges.
Bowl speed too low. Examine the motor and power transmission
including the belt transmission (clutch).
Bowl rotates i wrong direction.
Check the electrical connections to the motor.
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