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4.3 CHANGING THE ENGINE OIL

4.3.1 OIL CHANGE INTERVALS

See the "Service Schedule" section.

4.3.2 ENGINE OIL RECOMMENDATIONS

All oil should meet minimum American Petroleum
Institute (API) Service Class SJ, SL or better. Use
no special additives. Select the oil's viscosity grade
according to the expected operating temperature.



Any attempt to crank or start the engine before

it has been properly serviced with the recom-
mended oil may result in an engine failure.

1 0 W - 3 0

S A E 3 0

S y n t h e t i c 5 W - 3 0

4.3.3 OIL & OIL FILTER CHANGE PROCEDURE

To change the oil, proceed as follows:

1. Start the engine by moving the AUTO/OFF/

MANUAL switch to MANUAL and run until it
is thoroughly warmed up. Then shut OFF the
engine by moving the switch to the OFF position.

2. Immediately after the engine shuts OFF, pull the

oil drain hose (Figure 4.5) free of its retaining
clip. Remove the cap from the hose and drain the
oil into a suitable container.

3. After the oil has drained, replace the cap onto the

end of the oil drain hose. Retain the hose in the
clip.

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 the Specifications section
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).

Figure 4.5 – Oil Drain Hose and Filter

Oil Filter

Oil
Drain
Hose

Low Oil Switch

High Temp Switch

Loose

4. Refill with the proper recommended oil (see the

Engine Oil Recommendations section). See the
Specifications section for oil capacities.

5. Start the engine, run for one (1) minute, and

check for leaks.

6. Shutdown and recheck oil level, add as needed.

DO NOT OVER FILL.

7. Reset the AUTO/OFF/MANUAL switch to the

AUTO position.

4.4

CHANGING THE ENGINE
AIR CLEANER

4.4.1 7, 13, AND 16KW GENERATORS

See Figures 1.1 and 1.2, for the location of the air
cleaner. Use the following procedures (Figure 4.6,
7kW; Figure 4.8, 13/16kW):

1.  Lift the roof and remove the door.
2.  Turn the two screws counterclockwise to loosen.
3.  Remove the cover and air filter.
4.  Wipe away dust or debris from inside of the air

box and around edges.

5. Install the new air cleaner into the air box.
6. Install the cover. Turn the two cover screws clock-

wise to tighten.

See the Service Schedule section for air cleaner main-
tenance. See the Specifications section for air filter
replacement part number.

Section 4 — Maintenance

Air-cooled Generators