Changing The Oil; Changing The Engine Air Cleaner; Spark Plug - Generac Power Systems PowerPact 7.5 kW Owner's Manual

Changing the Oil

1. Start the engine by pressing the MANUAL button
on the control panel and allow the engine to run
until it is thoroughly warmed up. Then, press the
Control Panel OFF button to shut down the engine.
2. A few minutes after the engine shuts OFF, when it
has cooled slightly, remove the enclosure top lid by
unscrewing the fasteners, and lift the front panel off.
3. Remove the battery access panel (A) by loosening
the two hex head screws. See
4. Disconnect the battery and remove the fuse.
5. Pull the oil drain hose (B) free of its retaining clip
(C). See Figure 4-3.
6. Remove the cap from the hose and direct the hose
into a suitable container.
7. Unscrew the drain hose cap and allow engine oil to
drain. Remove dipstick/ fill plug to permit oil to
drain faster. For proper drainage, drain the oil into
a pan placed at a lower level than the engine.
C
A
Figure 4-3. Oil Drain Location
8. After the oil has drained, replace the cap onto the
end of the oil drain hose. Reposition and secure
the hose with the retaining clip.
9. Refill the engine with the proper recommended oil.
For recommended oil, see
10. Connect the battery, secure the battery access
panel, insert the fuse, and switch the unit to
MANUAL.
11. Start the engine, run for one minute, and check for
leaks.
12. Shutdown the engine and check the oil level. Add
oil as needed. DO NOT OVERFILL.
13. Insert dipstick/fill cap.
14. Press the Control Panel AUTO button.
15. Dispose of the used oil and filter at a proper
collection center.
Owner's Manual for 7.5 kW PowerPact™
Figure 4-3.
B
001058
Figure 4-2.

Changing the Engine Air Cleaner

1. With the generator shut down, remove the top lid.
2. See Figure 4-4. Disengage the wire clip (A) and
remove the air cleaner access cover (B).
B
C
A
Figure 4-4. Air Filter Location
3. Remove the old air filter (C) and discard.
4. Thoroughly clean the air cleaner enclosure of any
dust or debris while ensuring that none of the
debris falls in to the engine intake.
5. Install a new air filter.
6. Install the air cleaner cover and engage the wire
clip.
7. Install the enclosure top lid. Tighten fasteners
securely.
8. Place generator in AUTO.

Spark Plug

Check the spark plug gap and replace the spark plug as
necessary:
1. With the generator shut down, remove the top lid.
2. Clean the area around the base of the spark plug
to keep dirt and debris out of the engine.
3. Gently pull the spark plug boot off of the spark
plug.
4. Remove the spark plug and check the condition.
Install a new plug if the old plug is worn or if reuse
is questionable.
5. Clean the plug by scraping or washing with a wire
brush and commercial solvent. Do not blast the
plug to clean.
6. See Figure 4-5. Check the spark plug gap using a
wire feeler gauge. The gap should measure 0.030
in (0.76 mm). If the gap is out of specification,
replace the spark
Replacement Parts.
Maintenance
001070
plug. See Section 2—
19