Acer AIR-104 Bedienungshandbuch PDF herunterladen (Seite 9)

GENERAL PUMP

A member of the Interpump Group

LH SERIES

Page 9

10. START UP AND RUNNING PROCEDURES

10.1 Before start up

Before start up make sure that the following conditions

have been complied with:

1. Suction line should be connected: the pump must

never run dry.

2. Suction line must be perfectly air-tight.

3. Any ON-OFF valve in between the pump and water

source should be open and make sure the water

gets into the pump freely.

4. Set the pressure line in dump mode in order to let

the air in the pump get out easily thus facilitating

the pump priming.

5. Make sure all suction/delivery line connections are

fully tightened.

6. Joint alignment, belt tightening and PTO shaft

inclination tolerances should remain within the

values indicated by the transmission Manufacturer.

7. Make sure the oil level is correct.

Note: in case the pump has not run for a long period of

time check the suction and delivery valves for scaling

(see paragraph 11.2).

10.2 Starting up

1. Pump and motor/engine should start offload, set the

regulating valve to zero or set the pressure line in

dump mode by means of proper dumping devices.

2. When starting the pump up for the first time or after

every wiring re-connection check for the proper

direction of rotation.

3. Check that the rotating speed does not exceed the

rated value.

4. Before putting the pump under pressure let it run for

some time until the oil flows freely.

5. Before stopping the pump release the pressure from

the system by operating the dump device or by

releasing the regulating valve and reduce RPM to a

minimum (diesel applications).

Note: in case of feeding by a centrifugal pump, make sure

that the plunger pump start only when the correct

inlet pressure is provided.

10.3 Water leakage

During operation a small amount of water (a few drops a

minute) is released from the pump fluid end; this leakage

is designed to provide lubrication for the pressure

packings. The leakage is drained out of the pump

through a hole in the lower cover (Fig. 6).

This hole must always be kept open.

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Owner’s Manual 1
LH SERIES 10

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