Check Fluids; Check Gearbox Oil (If Equipped) - Generac Power Systems SD050 Owner's Manual

Maintenance Maintenance
Gaseous Engine Battery Size
2.4L
4.2L
or GRP 27F
5.4L
GRP 24F, GRP 27F
or 2 X GRP 31
6.8L
12.9L
2 X GRP 31
or 2 GRP 8D
13.3L
Fill the battery with the proper electrolyte fluid if necessary and
have the battery fully charged before installing it.
Before installing and connecting the battery, complete the following
steps:
1. Set the generator's AUTO/OFF/MANUAL switch to OFF.
2. Turn off utility power supply to the battery charger circuit.
3. Remove the 10A and 15A fuses from the generator control
panel.
Battery cables were factory connected at the generator connection
points (Figure 1.4). Connect cables to battery posts as follows:
4. Connect the red battery cable (from starter contactor) to the
battery post indicated by a positive, POS or (+).
5. Connect the black battery cable (from frame ground) to the
battery post indicated by a negative, NEG or (—).
6. Reinstall the 10A and 15A fuses into their correct positions
inside the control panel.
7. Turn on the utility power supply to the battery charger circuit.
8. If the unit was previously operational turn the AUTO/OFF/
MANUAL switch back to the AUTO position.
Figure 1.4 – Battery Cable Connections
Damage will result if battery connections are made in reverse.
14
Minimum CCA
GRP 26 525
GRP 24F 525
700
525
700
925
NOTE:
The generator is equipped with a battery trickle charger that is
active when the unit is set up for automatic operation. With the
battery installed and utility power source voltage available, the
battery receives a trickle charge while the engine is not run-
ning, to prevent self-discharge. The trickle charger is designed
to help extend the life of the battery by maintaining the battery
when the unit is not running. The trickle charge feature cannot
be used to recharge a discharged battery.

CHECK FLUIDS

An authorized operator should check the levels of engine oil, and
engine coolant monthly (or 10 hours). The oil level should be
maintained between the "FULL" and "ADD" marks on the engine
dipstick. Recommended fluids are listed are in the "Specifications"
section.
Check the engine oil as follows:
1. Locate the engine oil dipstick.
2. The most accurate oil level readings are measured when the
engine is cold. If the engine was running, wait at least 10
minutes before proceeding to the next step.
3. Remove the dipstick and wipe dry with a clean, lint free cloth.
4. The clean dip stick should be slowly inserted into the dip stick
tube. Visually confirm that the dip stick is fully seated in the
dip stick tube. A visual inspection is required because some
dip sticks will require more effort than others to fully seat.
5. After 10 seconds have passed, remove the dip stick.
6. Look at the oil level on both sides of the dip stick. The lower
of the two readings will be the correct oil level measurement.
7. Adjust the oil level accordingly. After adding or changing the
oil, the engine should run for one minute before checking the
oil level according to the above procedure starting at step 1.
You must wait the full 10 minutes to ensure that the oil has
fully drained into the oil pan.
Typical root causes of inaccurate oil level readings:
• Reading the high level of the dip stick.
• Reading the dip stick before the oil fully drains into the oil pan
(step #2).
• Inserting and removing the dip stick too quickly (step #5).
• Dip stick isn't fully seated in the dip stick tube.

CHECK GEARBOX OIL (IF EQUIPPED)

Once annually (or at every 200 hour intervals), an authorized ser-
vice technician should completely drain and refill the gearbox (if so
equipped) using the following procedure (Figure 4.1):
1. Remove panel fuse and negative battery cable.
2. Remove the oil filler/vent cap.
3. Remove the drain plug and drain the oil into an appropriate
container. Dispose of or recycle the oil properly.
4. Reinstall the oil drain plug.
5. To add oil to the gearbox, remove the oil level check plug.
NOTE: