MAINTENANCE
26 Copyright © 2008 Mastervolt / December 2008 / Whisper 12 Ultra - Three phase for mobile applications/ EN
4 MAINTENANCE
4.1 ALTERNATOR
The alternator does not require any maintenance. Periodic
inspection and cleaning is recommended, depending on
environmental conditions.
However when the alternator has been idle for a long
period attention to winding condition is recommended.
The condition of windings can be assessed by
measurement of insulation resistance to earth (see section
5.3.5, Meggering).
All bearings are greased for life and not regreasable.
4.2 ENGINE
4.2.1 Preliminary instructions
All regular maintenance can be carried out when the
enclosure is open. When oil and dirt has gathered in the
enclosure measures have to be taken to avoid spilling oil
and polluting the environment.
The first service on the engine should be carried out after
50 hours of its life and after a major overhaul. In the first
50 hours the engine should receive special attention:
Long periods of light or no load running in the first 50
hours may lead to cylinder glazing and high oil
consumption.
For the same reason it is of the greatest
importance to use the right oil specification
The first time starting up or after running out of fuel it could
be necessary to prime the fuel system.
4.2.2 Bleeding fuel lines
The system is self bleeding. The first time starting up or
after running out of fuel it could be necessary to prime the
fuel system.
1 Ensure there is sufficient fuel.
2 Release the fuel bleed screw (1). See fig. 18.
3 Push the start button activating the electric system
and activating the fuel pump. When more time is
needed to bleed, push “start” and hold on the local
control panel (so not on the remote panel) Hold as
long as necessary to bleed the system.
4 Retighten the fuel bleed screw (1) when no further air
bubbles are expelled.
Fig. 18: Bleeding fuel lines 1 = Fuel bleeding screw
4.2.3 Valve clearance
When the engine is in cold condition both valves (inlet and
outlet) should have a clearance between 0.25 mm. The
adjustment has to be done at TDC (refer to § 5.4.2).
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