TROUBLE SHOOTING
EN / WHISPER 12 Ultra - Three phase for mobile applications / December 2008 / Copyright © 2008 Mastervolt
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5.4.3
Disassembling instructions
It could be necessary to disassemble the generating set
for repair or checks. Following instructions will help:
1 The design of the Whisper 12 Ultra makes it possible
to do most repairs on the spot. The connections of the
alternator are very accessible. The same is true for
the diode of the rotor
2 The sound shield can be disassembled according to
exploded view below (figure 29)
3 To take the generating set out of the soundshield all
hose and cable connections have to be taken off. The
set is fixed to its base by four rubber mountings and
can be loosened by removing the four nuts from the
bolts of these mountings and by removing the
safeguards. The easiest way to get the generator out
of its capsule is by lifting the set using the lifting eyes
4 One can take off the complete alternator housing.
Before the alternator can be taken off all cables and
wiring have to be loosened first.
5 The rotor can be taken off by removing the bolt which
goes through the shaft (normal clockwise threaded).
The end of the shaft is specially threaded to push off
the rotor from the conic stub shaft, which is on the
flywheel, using a 10mm rod of 245mm length and a
M24x2 bolt.
6 Reassembling the generating set one should take
care of alignment, cleaning the surfaces between
engine and alternator and tighten the bolts crosswise
and gradually.
7 Use Loctite 577 to seal the fittings, which should first
be cleaned and made free of oil and grease.
8 Test the generating set first outside its soundshield
and check very carefully for leakages before putting it
back in its enclosure.
Figure 31: exploded view sound shield Whisper 12 Ultra
