89
Ocmis Irrigazione S.p.A. – INSTRUCTION AND WARNING MANUAL – Translation of Original Instructions
MUMR-R1.02 .EN - 31/07/2015
CHAPTER 8 - Troubleshooting - Diagnostics - Solutions
Fault or
Inconvenience
Cause
Solution
Too little water fl ows
out of the raingun on
the trolley.
The nozzle on the
turbine
water
inlet
might be obstructed.
Remove the hazard situation by acting as
indicated in the danger provision at the
beginning of chapter 8
The turbine cover must be opened, then
take down the lower turbine coupling, extract
the nozzle, remove the obstruction and fi t
everything back on, taking care to properly fi t
the gaskets back on and paying attention to
the proper tightening torques to be applied to
the connecting bolts and nuts (see 7.4.3).
Close the covers, restore water delivery to the
machine and check it operates smoothly.
Too little water fl ows
out of the raingun on
the trolley.
The diameter of the
nozzle on its head
might be too small with
regards to the machine
model.
Remove the hazard situation by acting as
indicated in the danger provision at the
beginning of chapter 8
Unscrew the ring nut on the raingun head,
extract the nozzle and replace it with one with
a larger internal diameter.
Ø M
A
GG
As an alternative, it might be suffi cient to change
the nozzle inserted in the turbine water inlet, with
a 4 mm / 0.16 in of smaller internal diameter, to
do so act as described in the previous case.
the operating pressure
is too low.
Check the actual pressure reading on the
pressure gauge and if it is actually lower than
the minimum recommended one, increase the
operating pressure by acting on the pumping
station to reach a value between 8 ÷ 10 bar /
116 ÷ 145 psi.
The
brake
band
has
signifi cantly
overheated.
During
hose
UNWINDING
the
lever has been left
in
the
RELEASE
position, consequently
the brake band may
have been irreparably
deteriorated.
Remove the hazard situation by acting as indicated in the danger provision at the
beginning of chapter 8
The Manufacturer's after-sales service must be contacted to replace the brake band.
Strange
noises
are
heard in the gearbox
when
the
gear
is
changed.
The number of rounds
of the turbine has
not been suffi ciently
reduced.
Remove the hazard situation by acting as indicated in the danger provision at the
beginning of chapter 8
The number of rounds of the turbine must be further reduced, by acting on the by pass or
Computer, then repeat the procedure. The machine normally resumes operation.
Should the machine not resume work, this would mean that during the fi rst operation, an
attempt was made to force the gear change and gearbox has consequently been damaged.
The Manufacturer's after-sales service must be contacted in this case to repair the gearbox
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