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4.3.2 OIL CHANGE PROCEDURE
To change the oil, proceed as follows:
1. Run the engine until it is thoroughly warmed up
then shut OFF the engine.
2. Immediately after the engine shuts OFF , pull the
oil drain hose (Figure 4.4) free of its retaining
clip. Remove the cap from the hose and drain the
oil into a suitable container.
Figure 4.4 – Oil Drain Hose and Filter
Oil
Drain
Hose
3. After the oil has drained, replace the cap onto the
end of the oil drain hose. Retain the hose in the clip.
4. Refill with the proper recommended oil (see
Section 4.3.1). See Section 1.5.2 (Page 6) for oil
capacities.
4.4
CHANGING THE OIL FILTER
Change the engine oil filter as follows:
1. With the oil drained, remove the old oil filter by
turning it counterclockwise.
2. Apply a light coating of clean engine oil to the gas-
ket of the new filter. See Section 1.5.1 (Page 6) for
recommended filter.
3. Screw the new filter on by hand until its gasket
lightly contacts the oil filter adapter. Then, tighten
the filter an additional 3/4 to one turn (Figure 4.4).
4. Refill with the proper recommended oil (see
Section 4.3.1, Page 17). See Section 1.5.2 (Page 6)
for oil capacities.
5. Start the engine and check for leaks.
18
Section 4 — Maintenance
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
Oil Filter
4.5
CHANGING THE ENGINE
AIR CLEANER
4.5.1 7 KW, 12 KW AND 15 KW
GENERATORS
See Figures 1.1 and 1.2, (Page 5), for the location of
your air cleaner. Use the following procedure (Figure
4.6):
1. Turn the two screws counterclockwise to loosen.
2. Remove the cover and air filter.
3. Wipe away dust or debris from inside of the air
box and around edges.
4. Install the new air cleaner into the air box.
5. Install the cover. Turn the two cover screws clock-
wise to tighten.
See the "Service Schedule," Section 4.13 (Page 22) for
air cleaner maintenance. See Section 1.5.1 (Page 6)
for air filter replacement part number.
Figure 4.6 — 7 kW, Engine Air Cleaner Location
Air Cleaner
Figure 4.7 — 12 kW and 15 kW Engine
Air Cleaner
Screw
Fuel
Regulator
Cover
Filter
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