Specifications
INSTRUCTION AND MAINTENANCE MANUAL
The drawings and the technical data are R.M. S.p.a. - © R.M. S.p.a. - Revision 01.01.200734/44
SERVICING INSTRUCTIONS
During the machine’s normal working life, the machine can stop or lose its correct regulated settings. In these
situations, follow these steps:
° Refer the matter to an expert service engineer. Only a service engineer can deal with these kinds of
problems.
° The service engineer should identify the type of problem from a reading of the pages below on Trouble-
shooting the machine. Once the problem is identified, he can find the right solution and put the problem
right.
TROUBLE-SHOOTING
The following are some typical problems that crop up when the machine is working under normal conditions.
Read this section carefully since it will provide useful remedies to solve these kinds of problems.
PROBLEM When the hose is being pulled by the tractor to unwind it, the hose will not come out.
REMEDY
Disengage the stop dog (pos. 2, photo D) from the chain (Models 700, 800, 900, Major, 890,
990) or from the reel drive gear (Model 550, 560, 570, 580, 590, 600).
PROBLEM When the hose is being pulled by the tractor to reel it out, there is very strong
resistance.
REMEDY
Check if lever (pos. 7, photo H) is disengaged (downs for models 550, 560, 570 and towards
the rain gun carriage for all other models), raise the rain gun carriage with the tractor lift so
that the weight is on the tractor’s rear axle. Disconnect the hose, remove the round plug (if
installed on the rain gun carriage).
If the resistance is still high:
Slacken off the brake even more (handwheel pos. 6, photo H) and
reduce the tractor speed to 5 kph.
PROBLEM The gear unit runs hot during unreeling
REMEDY
Reduce tractor speed to 5 Kpm.
A slight heating up of the gear unit box is normal during hose
unreeling.
PROBLEM Water reaches the machine but does not come out of the rain gun or just a small
amount does.
REMEDY Check the pressure on the turbine gauge. It should be at least 4 bar. Try to increase the in-
feed water pressure.
If the problems persists:
Cut off the water supply and check if there are obstructions in the
intake line (pos. 13, photo H); check the rain gun nozzle for foreign bodies. It is good standard
operating practice to unreel the hose completely (especially when the machine is
commissioned or after the winter lay up).
PROBLEM Water reaches the machine but the turbine does not turn and does not reel in the hose.
REMEDY
Check if the water volume is sufficient and if the pressure (read from the turbine gauge) is
over 4 bar, follow the procedures outlined below:
A) Operate the turbine by-pass valve (pos. 3, photo H) by pulling it towards the water
in-take (pos. 13, photo H): check if the turbine turns normally checking the plastic
coupling between the turbine and gear unit. If the turbine turns, go on to point C).
The machine may have problems that are more serious than expected.
Once you have identified the problems and checked the solutions offered in the Trouble-
Shooting pages below, if the work cannot be done under perfectly safe conditions, refer
the matter to your nearest RM Technical Assistance Centre.