Gardena 3800 Silent Manuel D'utilisation page 12

8. Screw the cover onto the filling opening
8
tools).
9. Open any shut-off valves in the delivery line (watering accessories,
water stop etc.). All consumers must be open as wide as possible.
10. Connect the power cable plug to a mains socket.
11. For high suction heights: Lift and hold the pressure hose
1.8 m above the pump during the priming process.
to the On position.
12. Move the On/Off switch
10
The pump starts (the On/Off switch lights up) and pumps the water after
the priming process.
The pressure gauge shows the water pressure in the reservoir.
17
The priming process can take up to five minutes.
Note: When using for the first time, there may be a brief
(approx. 10 seconds) increase in noise level near the tank.
4.1.2 If the pump is not pumping water after five minutes
to the Off position.
1. Move the On/Off switch
10
The pump stops.
2. Let the pump cool down.
3. Look for possible causes in „7.2 Error table".
4. Restart the pump (see „4.1.1 Starting the pump").
4.1.3 Stopping the pump
Æ Move the On/Off switch to the Off position.
10
The pump stops.
4.2 Pump tips
4.2.1 Quiet operation:
The pressure tank unit is quiet. This positive feature can only be maintained if
it is installed correctly:
Æ Select a low-vibration surface (do not place it on metal sheets or plastic
tanks, for example).
4.2.2 Installing a pre-filter (accessory)
If a pre-filter is too long, it may be installed in a different position (for example
horizontally) rather than vertically facing downwards.
4.2.3 Using sprinklers
Switching the pump unit on and off automatically may result in an uneven
irrigation pattern depending on the flow rate of the sprinkler.
5. MAINTENANCE
DANGER!
Risk of injury
Risk of injury due to unintentional startup.
Æ Disconnect the power cable plug from the mains socket.
Æ Make sure that all parts have been properly secured after
maintenance.
5.1 Cleaning the pressure tank unit [Fig. M1]
DANGER!
Risk of injury and damage to property!
Not cleaning the product properly can injure people and damage the
product.
Æ Do not use water or a water jet (especially a high-pressure water jet)
to clean the product.
Æ Do not use chemicals, including gasoline or solvents, to clean the
product.
Some of these substances can destroy important plastic parts.
The ventilation slots must always be kept clean.
1. Clean the housing of the pressure tank unit with a damp cloth.
2. Clean the ventilation slots with a soft brush (do not use sharp objects).
5.2 Flushing the pump
The pump must be flushed after it has pumped chlorinated water.
1. Pump lukewarm water (max. 35°C), possibly with the addition of a mild
cleaning fluid (e.g. washing-up liquid), until the pumped water is clear.
2. Dispose of the residues as specified in local waste disposal guidelines.
12
5.3 Checking the air pressure in the reservoir [Fig. M1]
by hand (do not use any
9
Æ Check the air pressure in the reservoir if the device starts to misbehave.
The air pressure in the reservoir must be approx. 1.0 bar. An air pump/tyre
inflater with a pressure gauge is required to top up the air. Excessive air pres-
sure does not increase the water pressure and causes malfunctions.
at least 1. Unscrew the protective cover (11).
6
2. Open any shut-off valves in the delivery line (watering accessories, water
stop etc.).
This causes the pressure side to depressurise.
3. Attach the air pump/tyre inflater to the reservoir valve (car valve) (12).
4. Top up with air until the pressure gauge on the air pump/tyre inflater
shows approx. 1.0 bar.
5. Screw the protective cover (11) back into place.
5.4 Cleaning the integrated filter and check valve [Fig. M2]
Depending on the level of water pollution, the filter should be cleaned at
regular intervals, at the latest if it malfunctions.
1. Close all the shut-off valves on the suction side.
2. Open any shut-off valves in the delivery line (watering accessories, water
stop etc.).
This causes the pressure side to depressurise.
3. Unscrew the fitting
4. Pull the filter (13) out of the filler neck
5. Clean the filter (13) and check valve (14) under running water and, if
necessary, a soft brush or mild cleaning fluid.
6. Lubricate the outer O-ring on the filter (13) with environmentally friendly
machine grease.
This will make it easier to remove the filter the next time it needs cleaning.
7. Install the filter (13) and check valve (14) in reverse order.
6. STORAGE
Risk of injury due to unintentional startup.
Æ Store the pressure tank unit in a frost-proof place.
6.1 Decommissioning [Fig. S1]
The product must be stored away from children.
1. Disconnect the plug from the mains socket.
2. Close any shut-off valves in the suction line.
3. Open any shut-off valves in the delivery line (watering accessories, water
stop etc.).
This causes the pressure side to depressurise.
4. Screw on the fitting
by hand.
This will drain the pump.
5. Tilt the pressure tank unit slightly towards the drain (up to 80°) so that the
pump drains fully.
6. Unscrew the suction hose and the pressure hose.
7. Tighten the fitting
(15) by hand (do not use any tools).
8. Store the pressure tank unit in a dry, covered and frost-proof location.
7. TROUBLESHOOTING
Risk of injury due to unintentional startup.
Æ Disconnect the plug from the mains socket.
Æ Allow the pump to cool before troubleshooting.
7.1 Undo the impeller [Fig. T1]
If the impeller has been blocked by contamination, it can be released.
Æ Turn the impeller shaft (15) clockwise using an insulated screwdriver.
This will release the blocked impeller.
on the filler neck by hand (do not use tools).
8 9
using the removal tool (r).
9
CAUTION!
Pump frost damage
on the filler neck and the water drain plug (15)
8 9
on the filling opening
8 9
DANGER!
Risk of injury
and the water drain plug