MAINTENANCE
28
February 2020 / W-SQ-Pro 15/10.8 / W-SQ-Pro 18/15,5
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).
4.2.4 Replacing fuel filter
Filter change depends on contamination of the fuel, but
should be done however, at least every 300 running hours.
Before changing the filter, clamp off the supply line.
Remove the hoses from filter and attach them on the new
filter again. The arrow on the filter housing indicates the
direction of the flow. A clogged filter results in a lack of
output of the generating set.
4.2.5 Replacing oil filter
The oil filter is in front of the service side. Replacement has
to be executed according to the schedule in this manual.
Drain the oil using a sump pump and put some tissues
under the filter.
Fig. 19
