Elmo-rietschle L-BV7 Manuel d'utilisateur télécharger pdf (Page 39)

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Servicing

11.2 Repairs/troubleshooting

Fault Cause Remedy Carried out by

Motor does

not start,

no motor

noise.

At least two

power supply

leads interrupted.

Check fuses, terminals and cables for open

circuit. Eliminate open circuit.

Electrician

One power

supply lead

interrupted.

Check fuses, terminals and cables for open

circuit. Eliminate open circuit.

Electrician

Free shaft by turning.

See Chapter 11.1, "Maintenance", Pg. 36.

Operator

Decalcify vacuum pump/compressor.

See Chapter 11.1, "Maintenance", Pg. 36.

Operator

Drain and clean vacuum pump/compressor if

necessary.

See Chapter 11.1, "Maintenance", Pg. 36.

Operator

Impeller is

jammed.

Check and correct impeller gap setting if

necessary.

Service

Impeller

defective.

Replace impeller. Service

Motor does

not start,

humming

noise..

Motor bearings

defective.

Replace motor bearings. Service

Winding short-

circuit.

Have winding checked. Electrician

Motor

overloaded.

Throttle operating-liquid flow rate.

See Chapter 8.2, "Self-priming operation", Pg. 30

or 8.3, "Operation with operating-liquid feed",

Pg. 31.

Operator

Counter-pressure

at discharge

connection too

high.

Reduce counter-pressure. Operator

Share of liquid

also fed too high.

Reduce share of liquid also fed. Operator

Protective

motor switch

trips when

motor is

switched on.

Impeller is

jammed.

See "Motor does not start,

humming noise."

Service

Decalcify vacuum pump/compressor.

See Chapter 11.1, "Maintenance", Pg. 36.

Operator Power

consumption

too high.

Lime or other

deposits.

Clean vacuum pump/compressor.

See Chapter 11.1, "Maintenance", Pg. 36.

Operator

No operating

liquid.

Ensure proper operating-liquid flow rate.

See Chapter 8.2, "Self-priming operation", Pg. 30

or Chapter 8.3, "Operation with operating-liquid

feed", Pg. 31.

Operator

Severe leak in the

system.

Seal leak in the system. Operator

Unit does not

generate

vacuum.

Wrong direction

of rotation.

Reverse direction of rotation by interchanging two

connecting leads.

Electrician

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