Westpro Westinghouse WH3250 Series, Service Manual, Page: 35 / 64

7-5
MAINTENANCE
9. Fill crankcase with oil following the steps outlined in
Adding Engine Oil on page 7-4.
NOTICE
Never dispose of used engine oil by dumping the
oil into a sewer, on the ground, or into groundwater
or waterways. Always be environmentally
responsible. Follow the guidelines of the EPA or
other governmental agencies for proper disposal
of hazardous materials. Consult local authorities or
reclamation facility.
10. Dispose of used engine oil properly.
AIR FILTER MAINTENANCE
!
WARNING
Never use gasoline or other fl ammable
solvents to clean the air fi lter. Use only
household detergent soap to clean the
air fi lter.
Cleaning the Air Filter
2
1 3
4
5
6
7
8
Figure 7-7 – Air Cleaner Assembly
1 - Gasket
2 - Nuts
3 - Air Filter Baffl e
4 - Gray Fine Inside
Filter
5 - Black Coarse
Outside Filter
6 - Air Filter Cover
7 - Air Filter Gasket
8 - Air Filter Housing
The air fi lter must be cleaned after every 50 hours of
use or 3 months (frequency should be increased if
generator is operated in a dusty environment).
1. Turn off the generator and let it cool for several
minutes if running.
2. Move the generator to a fl at, level surface.
3. Unclip the clips on the top and bottom of the air
fi lter cover (see Figure 7-8) and remove the air fi lter
cover.
Figure 7-8 – Removing Air Filter Cover
4. Remove the black coarse outside air fi lter (see
Figure 7-9) .
Figure 7-9 – Removing Coarse Outside Air Filter