Changing The Engine Oil; Changing The Engine Air Cleaner - Generac Power Systems 8 kW Owner's Manual

4.3

CHANGING THE ENGINE OIL

Hot oil may cause burns. Allow engine to
cool before draining oil. Avoid prolonged
or repeated skin exposure with used oil.
Thoroughly wash exposed areas with soap.
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
appropriate viscosity oil grade according to the expected operating
temperature.
• SAE 30 Above 32° F
• 10W-30 Between 40° F and -10° F
• Synthetic 5W-30 10° F and below
10 W - 30 10W - 30
Synth e t i c 5W - 3 0 Synthetic 5W-30
Any attempt to crank or start the engine
before it has been properly serviced with the
recommended oil may result in an engine
failure.
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 4.4) 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 gasket of the
new filter. See the Specifications section for recommended
filter.
S A E 3 0 S A E 3 0
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 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.
8. Dispose of used oil at a proper collection center.
The oil drain hose may be routed in the opposite direction as
shown in Figure 4.4.
Figure 4.4 – Oil Drain Hose and Filter
Low Oil Switch
Oil Filter
Oil
Drain
Hose
4.4 CHANGING THE ENGINE AIR
CLEANER
4.4.1 13, 14, 16, 17 & 20KW GENERATORS
See "The Generator" section for the location of the air cleaner. Use
the following procedures (Figure 4.5):
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 clockwise to
tighten.
See the Service Schedule section for air cleaner maintenance. See
the Specifications section for air filter replacement part number.
Maintenance
NOTE:
High Temp Switch
23