Homa C140 WA Manuel D'instructions Original page 27

The machine does not start
Cause
Interruption of the power supply, short circuit/short-circuit to earth in
the conduit and/or motor winding
Trip fuses, circuit breakers and/or monitoring devices
The machinery starts, the circuit breaker is released, but is off shortly after start-up
Cause
The thermal trigger on the circuit breaker is set incorrectly
Impeller/propeller slowed down due to adhesions, obstructions and/
or solids, increased power input
The medium is too thick
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 operation mode
The machinery does not run smoothly and makes noises
Cause
The machinery runs in inadmissible 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
Specialist to check conduit and motor and replace, if appropriate
Connections to be checked by a specialist and changed, if appropriate.
Fit/set up circuit breaker and fuses according to the technical instruc-
tions, reset monitoring devices. Check impeller/propeller for smooth
operation and clean/restore to operability, if appropriate
Remedy
Specialist to compare the setting of the trigger with the technical
instructions and to correct if appropriate
Switch off machinery, secure against restart, restore to operability of
the impeller/propeller/clean suction branch
Contact the manufacturer
Remedy
Open inlet for container/gate valve
Clean inlet, gate valve, suction piece, suction branch/suction filter
Switch off machinery, secure against restart, restore operability 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 operability 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 appro-
priate
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 operability 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 | 27