Homa CR360 Manuel D'instructions Original page 31

The machinery runs, but does not convey
Cause
There is no pumped medium
Inlet obstructed
Impeller/propeller blocked/
slowed down
Defective tube/pipe
Pump adhere on flexible ground
The machinery is running, the indicated operating values are
not met
Cause
Inlet obstructed
Gate valve in the pressure pipe
closed
Impeller/propeller blocked/
slowed down
Air in the system
The machinery conveys against
too high pressure
Wear and tear
Defective tube/pipe
Inadmissible content of gas in
the pumped medium
Dual phase operation
Too strong drawdown in opera-
tion mode
The machinery does not run smoothly and makes noises
Cause
The machinery runs in inadmis-
sible operating range
Pump inlet, intake strainer and/
or wheel/propeller congested
Impeller does not run smoothly
Dual phase operation
Wear and tear
Engine mount defective
Machine mounted askew
Remedy
Open inlet for container/gate
valve
Clean inlet, gate valve, suction
piece, suction branch/suction
filter
Switch off machinery, secure
against restart, restore operabi-
lity of impeller/propeller
Replace defective parts
Move the pump on hard ground
Remedy
Clean inlet, gate valve, suction
piece, suction branch/suction
filter
Open gate valve completely
Switch off machinery, secure
against restart, restore operabi-
lity of impeller/propeller
Check pipes, pressure mantle
and/or part of pump, de-aerate,
if appropriate
Check the gate valve in the
pressure pipe, open completely
if appropriate
Replace worn parts
Replace defective parts
Contact the manufacturer
Specialist to check connection
and to correct, if appropriate
Check supply and capacity of
the system, check settings and
function of the level control
Remedy
Check the operating data of
the machinery and correct, if
appropriate and/or adjust the
operating conditions
Clean suction branch, suction
filter and/or impeller/propeller
Switch off machinery, protect
against restart, restore operabi-
lity of the impeller
Specialist to check connection
and to correct, if appropriate
Replace worn parts
Contact the manufacturer
Check assembly and use rubber
compensators
ENGLISH | 31