Generac DUARDIAN 04077-2 - Manual (Page 13)

Section 3 — M aintenance
Guardian Air-cooled 6 kW, 8 kW and 10 kW Generators MAINTENANCE
3.1 FUSE
The generator panel’s 15-amp fuse (Figure 3.1) pro­
tects the DC control circuit against overload. The fuse
is wired in series with the battery output lead to the
panel. If the fuse element has melted open, you can­
not crank or start the engine. You should replace the
fuse using only an identical 15-amp replacement.
Figure 3.1 - Generator Control Panel
33 CHANGING THE ENGINE OIL
♦ 3.3.1 ENGINE OIL RECOMMENDATIONS
Use oil of American Petroleum Institute (API)
Service Class SG, SH or SJ. Select the viscosity
based on the air temperature at the time of opera­
tion. See the following chart:
Temperature Oil Grade (Recommended)
Above -7° C (20° F) SAE 10W-30 or SAE 30
Below -7° C (20° F) SAE 5W-20 or 5W-30
All Seasons SAE 5W-30 Synthetic*
^Organic break-in oil is required before using synthetic oil.
NOTE:
The unit is supplied with “break-in” oil. See the
“Service Schedule,” section 3.12, for the
first
required oil change.
3.2 CHECKING THE ENGINE OIL LEVEL
For oil capacities, see “Specifications,” section 1.7.
For engine oil recommendations, see section 3.3.1.
To check the engine oil level, proceed as follows
(Figure 3.2):
1. Start the generator by moving the Auto/
Off/Manual switch to the IVIANUAL position. Allow
it to run for a short while and then shut it down
by moving the switch to the OFF position.
Remove the dipstick and wipe it dry with a
clean cloth.
Install and tighten the dipstick cap; then, remove it
again. The oil level should be at the dipstick “Full”
mark. If necessary, add oil to the “Full” mark only.
DO NOT FILL ABOVE THE “FULL” MARK.
2 .
3.
A-
------ Jk CAUTION
A Never operate the engine with the oil level
below the "Add" mark on the dipstick. Doing
this could damage the engine.
4. Install and tighten the dipstick.
5. Reset the Auto/ Off/Manual switch to its origi­
nal position.
Figure 3.2
-
Oil Dipstick and Fill
--------- ik CAUTION Jk-----------------------
A 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.
♦ 3.3.2 OIL CHANGE PROCEDURE__________
To change the oil, proceed as follows:
Run the engine until it is thoroughly warmed
up then shut OFF the engine.
Immediately after the engine shuts OFF, pull
the oil drain hose (Figure 3.3) free of its retain­
ing clip. Remove the cap from the hose and
drain the oil into a suitable container.
Figure 3.3 - Oil Drain Hose
1 .
2 .
3.
4.
After the oil has drained, replace the cap onto
the end of the oil drain hose. Retain the hose in
the clip.
Refill with the proper recommended oil (see sec­
tion 3.3.1). See section 1.7.2 (page 6) for oil
capacities.
Oenerac® Power Systems, Inc. 1 i