FP USER INSTRUCTIONS ENGLISH 71576286 - 07/06

a)Start motor and check outlet pressure.

b)If pressure is satisfactory, slowly OPEN outlet valve.

c)Do not run the pump with the outlet valve closed for a period longer than 30 seconds.

d)If NO pressure, or LOW pressure, STOP the pump. Refer to faultfinding chart for fault diagnosis.

The pump should run smoothly and without vibration.

The pump must never run at a capacity of less than 10 % of that at the best efficiency.

Never remove a plug when the pump is running.

5.5 Running the pump

5.5.1 Venting the pump

Vent the pump to enable all trapped air to escape taking due care with hot or hazardous liquids. Under normal operating conditions, after the pump has been fully primed and vented, it should be unnecessary to re-vent the pump.

5.5.2 Pump fitted with a stuffing box

If the pump has a packed gland there must be some leakage from the gland. Gland nuts should initially be finger tight only. Leakage should take place soon after the stuffing box is pressurized. If no leakage takes place the packing will begin to overheat. If overheating takes place the pump should be stopped and allowed to cool before being restarted. When the pump is restarted it should be checked to ensure leakage is taking place at the packed gland.

When adjusting an operating stuffing box (shield grids removed for this operation) the operator must be very careful. Safety gloves are compulsory and loose clothes are not allowed (above all to the arms) to avoid being caught by the pump shaft.

The pump should be run for ten minutes with steady leakage and the gland nuts tightened by 10 degrees at a time until leakage is reduced to an acceptable level. The temperature of the gland should be checked after each round of tightening. If the temperature starts to climb rapidly then back off the gland nuts until the temperature drops down. Wait for the temperature to stabilize before tightening again. The leakage must not be reduced below a rate of 20 drops per minute. Bedding in of the packing may take several hours.

Shield grids being removed during installation of the gland packing, it must be ensured that they are replaced as soon as this operation is completed.

5.5.3 Pump fitted with mechanical seal

A mechanical seal ensures a seal without leakage and does not need any adjustment. Nevertheless if a light leakage occurs during start-up, it should disappear after the initial running in of the friction faces.

2110

2445

4200

4610

4240

4213

NEVER RUN A MECHANICAL SEAL DRY, EVEN FOR A SHORT WHILE.

SAFETY INSTRUCTIONS WHEN THE PUMP IS RUNNING:

If hot or freezing components of the machine can present a danger to operators, they must be shielded to avoid accidental contact. If a 100 % protection is not possible, the machine access must be confined to the maintenance staff only.

If the temperature is greater than 80 °C, a warning plate must be clearly placed on the pump.

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