Mechanical Anomaly; Spare Parts - Nomenclature - MarelliGenerators MJB 160 Instrucciones Y Advertencias De Seguridad

7.2 Mechanical anomaly

TROUBLE
a)
b)
c)
d)
Winding temperature
e)
raised.
f)
Air cooling temperature
g)
raised.
h)
i)
j)
k)
a)
b)
Noise, high vibrations.
c)
d)
e)
a)
Bearings temperature
raised.
b)
8.SPARE PARTS – NOMENCLATURE
Part name
Pos.
201 D side (D:E) bearing
202 N side (N.D.E.) bearing
6 Voltage regulator
7 Fuse (6.3x32 5A – 500V)
309 Kit rotating diode (direct)
310 Kit rotating diode (inverse)
311 Surge suppressor
119 Complete rotating rectifier
SIN.UM.017.11
POSSIBLE CAUSE
High ambient temperature.
Hot air reflow.
Source of heat in the proximity.
Plant of defective cooling.
Loopholes of the air obstructed.
Air filter very dirty.
Reduced air flow.
Speed less than rated.
Defective of measurement System.
Overload.
Load with cosfì below to 0,8.
Insufficient base structure or not suitable
antivibration, incorrect fixing
basement.
Defective coupling.
Defective cooling Fan, unbalanced rotor.
Single phase
Excess of unbalanced load,
loads.
Malfunctioning bearing.
Malfunctioning bearing.
Axial or radial load too high.
MJB 160
6310 2RS C3 / 346245050
6309 2RS C3 / 346245045
REMEDY
(always to be done with the machine switched off)
a) Ventilate in order to reduce the ambient temperature.
b) Create sufficient free space around to the machine.
c) Remove the heat sources.
d) Inspect conditions system and correct assembly.
e) Clean up the loopholes from eventual detritus.
f) Clear or substitute the filter.
g) Remove the obstacles, assure that the air flow is
enough.
h) Check rpm (frequency).
i) Check the thermodetectors.
j) Eliminate the overload. To cool the genset before
restarting it.
k) Verify the values of the load, cosfì must be 0,8 or to
reduce the load
a) Strengthen the basement, replace the antivibration,
to the
cross again the screw on the base.
b) Review the alignment, the fixing of the disc on they fly
motor and of the D-end shield on the first motor.
c) Check and to repair the cooling fan, clean the rotor and
rebalancing.
d) Check that the load is conforming to the requisite.
e) Replace bearing.
a) Replace bearing.
b) Check the alignment and check the coupling of the
genset.
Type / Code
MJB 200
6313 2RS C3 / 346245065
MARK V M16FA655A
963823065
M16FA646A
M16FA647A
M16FA864A
M16FA648B
31
ENGLISH
MJB 225
6215 2RS C3 /
346242075
6311 2RS C3 /
346240055
M22FA703A
M22FA704A
M22FA500B