Rapid Hose Retraction; Use Of The Machine At Night; Maintenance; End Of The Season Storage Preparation - MARANI ITS80B Manual De Instrucciones De Uso Y Mantenimiento

2.8 RAPID HOSE RETRACTION

The function of the P.T.O. power takeoff on the gearbox is to rewind the hose quickly by the tractor. In case of inconvenience
such as rainfall etc., to rewind the hose by the P.T.O. proceed as follows:
1) Make sure that the gearbox lever no.2 is in "hose-rewind" position to prevent the P.T.O. from running loose.
2) Connect the P.T.O. shaft from the tractor to the gearbox power takeoff.
3) Activate the power takeoff and wind up the hose.
When using the P.T.O. shaft there is no automatic stop at the end of the run. The power takeoff must therefore be stopped be-
fore the hose is completely wound up It is recommended the last 2-3 metres of the hose be wound up by means of the handle.
ATTENTION: To avoid extremely irregular rewinding of the hose when it is completely laid out, it may be necessary to
pressure the machine as in a normal irrigation operation to avoid an excessive

2.9 USE OF THE MACHINE AT NIGHT

As the machine is not provided with an independent power source, in case of use in conditions of insufficient light the ma-
chine must be adequately illuminated.

3. 0 MAINTENANCE

1) Lubricate all grease nipples every 100 hours of work .
2) Lubricate the wheel hubs of the gun trolley every 100 hours .
3) Change the gearbox oil every season .

4. 0 END OF THE SEASON STORAGE PREPARATION

1) It is recommended to drain the water hose. To carry out this operation the hose partially should be laid down as for a normal
irrigation run. Remove the end cap from the trolley and pull in the hose by the power takeoff.
2) Take off the water inlet caps.
3) In order to protect the paint on the machine it is suggested that the machine be washed with a pressure water jet and when it
has dried, all metal parts should be sprayed with an oil-naptha mixture.

5.0 FAULT FINDING

1 Hose does not wind up:
- The impeller of the turbine is blocked by foreign matter, try to unlock it by rotating the turbine
shaft clockwise and anticlockwise by means of a key as indicated in (fig.31).
- The rain gun nozzle is partly clogged up and only a small quantity of water comes out, pro-
ceed with cleaning the injection nozzle in the turbine is clogged up, disassemble the hose at the
turbine entry and clean it.
- The rain gun nozzle is too small compared to the machine model, it must be replaced by a noz-
zle with a bigger diameter or a 4 mm smaller injection nozzle must be installed in the turbine.
- Insufficient pressure at the machine entry, increase it.
- The hose has been wound up with the speed gear engaged on the gearbox thus damaging the gearbox itself, procede repairs.
2 The machine tends not to stay anchored or to move:
- The anchor feet are badly fixed so anchor the machine better by creating more friction under the feet.
- The hose has been laid down on a humid soil and it produces too much friction. Wait until
the soil has dried or lift the hose by putting down planks of wood every 10-15 meters.
6

.0 RECCOMENDATIONS

- When moving the machine never exceed the max. speed of 10 km/h.
- If the hose is wound up by the P.T.O. drive make sure that the lever no.2 of the gearbox is in the idle position 0 or the gear-
box will be seriously damaged.
- At the beginning of each irrigation season pull out the hose completely, leave only two turns of hose on the reel.
- Any modification made to any part of the machine before the expiry of the warranty would make the warranty invalid.
If the hose remains laid out on the ground, especially after a rainfall, it may stick to the ground. Before starting
irrigation, it must be raised by passing a rope under the whole length of the hose. In that way damage to the ma-
chine or to the hose itself will be avoided .
- If the reel is being frequently operated on short runs, the machine hose may wind up incorrectly. It is recommended that it is
pulled out once completely in order to enable the hose to be set up in the right position again.
- The trolley skid must always be positioned evenly on the ground. If the trolley is not properly adjusted, it could cause a mis-
aligned movement and damage the crops.
- Damage to the gearbox can be caused if the gear is changed by the lever no.1 without having first decreased the turbine
speed.
- Never lay down the hose or carry out control operations when the handle is connected to the gearbox P.T.O.
- The machine must not be operated without the protection guards.
N.B. The non-observance of these instructions, the use of non original spare parts or unauthorized changes to the machine
will result in all warranties being cancelled.
4) Check type pressure every 4 weeks.
5) Grease the rain gun every 400 hours.
Fig.31
GB
20