INSTRUCTION AND MAINTENANCE MANUAL
The drawings and the technical data are R.M. S.p.a. - © R.M. S.p.a. - Revision 16.07.2007
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SERVICING (part VI)
ACTION GUIDELINES
What to do if …
A)
if the shoes (11 and 12) do not move easily on the rim, check if the rim surface is rough. If it is, smooth with
a file or grindwheel. If the drive shoe (12) does not turn the reel at its high travel section, sharpen the top
edge of the shoe in contact with the edge of the side. Use a file or emery wheel. If this does not do the trick,
change the drive shoe (12). When the machine is working, check to make sure that the drive shoe (12)
works perfectly square to the turbine/gear unit assembly. In other words, the drive shoe (12) must not
press against the revolving plate but just touch up against the cylinder. If necessary adjust the position of
the turbine/gear unit ass’y with the 4 gear bolts fixing the gear unit to the chassis.
B)
If the hose does not rewind correctly:
- repeat the steps described in points “E” and “G” of the commissioning procedure and check to make
sure that the rewinding wormscrew is working properly. Lastly, check to make sure the drive chain is
correctly tensioned.
- check if the machine has moved from its initial position.
C)
If the turbine/gear unit ass’y does not rewind or works badly:
- shut the by-pass valve
- check to make sure the minimum pressure shown on the gauge is 3.5 bar.
- check if the nozzle at turbine water inlet is clogged. To do this, detach the quick couple (15) and then
check.
- check if the rain gun nozzle is clogged.
If, after these checks, the turbine still does not turn, this usually means that some foreign body has
managed to get into the turbine. To remove it, just remove the six retaining screws on the cover and open
it.
D)
If the turbine leaks, contact your nearest RM Technical Assistance Centre.
E)
If the rain gun has a short throw, choose a more suitable nozzle (larger or smaller) from the accessory kit.
ATTENTION
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.
